HVAC & Mechanical Acquisitions in United States

Trane Technologies completed its acquisition of Stellar Energy Americas, Inc. (Stellar Energy), a provider of turnkey data center cooling and modular thermal management solutions. The deal, previously announced on December 2, 2025, expands Trane Technologies’ capabilities and scale in data center thermal management and pre-fabricated cooling systems.

NexCore, Trinity Hunt Partners’ commercial HVAC services platform, acquired Action Air Systems (Connecticut) and Accutemp Engineering (Massachusetts) to expand its Northeast/New England footprint and service capabilities. The transactions represent NexCore’s ninth and tenth acquisitions since formation, and were supported by financing arranged with advice from Hudson Avenue Partners.

Averon Group, a national HVAC distribution platform backed by Trinity Hunt Partners, announced an investment in Fenco Supply. The partnership adds Fenco Supply as Averon Group’s second partner company and expands the platform’s footprint into the Southeast, while Fenco Supply continues to operate under its existing brand with Michael Fennell remaining President.

Day & Nite Family of Companies entered into a strategic partnership with Alvarez & Marsal Capital alongside a simultaneous merger with AmeriServe. The transaction creates Day & Nite AmeriServe, a combined platform providing commercial HVAC/R, refrigeration, foodservice equipment, and related installation, repair, and preventive maintenance services across the East Coast, Southeast, and Texas.

Impact Climate Technologies (ICT) acquired Larry Wunsch & Associates, Inc. (LWA), a commercial HVAC and plumbing equipment representative and distributor based in San Antonio, Texas. LWA will continue operating under its existing name and leadership, while ICT provides strategic, operational, and sales resources to support growth and expand capabilities. ICT is a portfolio company of Ardian.

United Building Solutions (UBS), a commercial HVAC services provider backed by AE Industrial Partners, acquired DFW Mechanical Group, a full-service commercial and industrial mechanical contractor. The acquisition expands UBS’s footprint across the Southeast and South-Central United States, with DFW continuing to operate as a UBS division under President Brett Thomas; financial terms were not disclosed.

Impact Climate Technologies (ICT) acquired Heat Transfer Systems of Georgia, an Alpharetta, Georgia-based provider of cooling towers, heat exchangers, boilers, water filtration, and related HVAC equipment and services. The deal expands ICT’s presence in the Southeastern United States, and Heat Transfer Systems of Georgia will continue operating under its existing name and leadership. ICT is an Ardian portfolio company.

Sila Services, LLC acquired NEOH, an Ohio-based home services platform comprising multiple operating brands and a training academy. The acquisition expands Sila’s Midwest footprint and enhances its multi-trade service offering across HVAC, plumbing, duct cleaning, and indoor air quality services in Ohio; financial terms were not disclosed.

First Supply, a Wisconsin-based, family-owned wholesaler, has acquired Able Distributors, an HVAC supplier serving the Chicagoland area. Able Distributors will continue operating with its existing team and four branch locations (Chicago, South Chicago, Northfield, and McHenry) as part of the First Supply organization. The acquisition supports First Supply’s long-term expansion strategy in the Midwest and adds 48 team members.

Blackstone announced that funds managed by its private equity strategy for individual investors acquired Madison Dearborn Partners’ remaining equity stake in AIR Control Concepts (AIR), increasing Blackstone’s ownership after its initial investment in July 2024. AIR founder, president, and CEO Brad Hobbs and his family will also invest alongside Blackstone, making Blackstone the company’s sole institutional investor; financial terms were not disclosed.

Kelvin Group, a Southfield Capital-backed provider of mission-critical industrial and commercial mechanical refrigeration services, has acquired PermaCold Engineering, Inc., an industrial refrigeration company headquartered in the Pacific Northwest. The deal (terms undisclosed) is Kelvin Group’s 14th acquisition since partnering with Southfield Capital and expands Kelvin’s geographic footprint into the Pacific Northwest as part of its national expansion strategy.

Seacoast Service Partners (SSP), a home services platform formed by White Wolf Capital Group, acquired Cool By Design, a residential HVAC service provider serving Broward County, Florida. The deal expands SSP’s footprint in South Florida and marks SSP’s fourteenth acquisition.

Fidelity Building Services Group (Fidelity) acquired St. Johns Air, expanding Fidelity’s presence in Northeast Florida and South Georgia. St. Johns Air provides commercial and industrial HVAC and refrigeration services and is headquartered in Jacksonville, Florida, with an additional office in Orlando.

New State Capital Partners completed a majority investment in Harrell-Fish Inc. (HFI), a mechanical contracting provider focused on HVAC and plumbing installation, maintenance, and repair services. The investment was made in partnership with HFI’s existing owners, who retained significant ownership and will continue with the company, and alongside Amethyst Capital Group, LLC. Financial terms were not disclosed.

Silver State HVAC, Refrigeration & Plumbing acquired All American Mechanical, Inc., a commercial HVAC, refrigeration, and kitchen equipment services provider headquartered in El Dorado Hills, California. The acquisition expands Silver State’s service coverage in Northern California and strengthens its capabilities serving restaurant and foodservice customers with installation, preventative maintenance, and repair services.

Blackstone-backed Legence Corp acquired Innovative Mechanical & Design, LLC (IMD), a Northern Colorado-based mechanical installation and service provider. Eight Quarter Advisors served as sell-side transaction advisor to IMD; the deal is intended to support IMD’s growth and expand Legence’s service, maintenance, and fabrication capabilities in the region.

Nordomatic US acquired Conexus, Inc., a Building Management Systems (BMS) company headquartered in Middletown, Pennsylvania, to expand its U.S. footprint and capabilities. Conexus will be fully integrated into Nordomatic US alongside AME Inc., Nordomatic’s earlier U.S. entry. Conexus founder and owner Kurt Twiford will continue with the business as Director of the Pennsylvania Region, reporting to US Group President Amit Patel.

Seacoast Service Partners (SSP), a home and commercial services platform formed by White Wolf Capital Group, acquired Always Air Services. Always Air is a residential and commercial HVAC provider serving Southwest Florida, and the deal represents SSP’s thirteenth add-on acquisition, expanding its presence in Charlotte and Sarasota Counties.

Del-Air Plumbing, Air Conditioning and Electric acquired Jacksonville-based McGowan's Heating & Air Conditioning to expand Del-Air's presence in northeast Florida. Following the transaction, McGowan's will operate as Del-Air, broadening customer access to additional services such as plumbing and electrical alongside HVAC offerings. Del-Air is majority owned by Astara Capital Partners.

Good Springs Capital LP announced that entities it manages have completed an investment in Falasca Mechanical, LLC, an HVAC and plumbing services provider founded in 1998. Falasca Mechanical is headquartered in Vineland, New Jersey and serves education, health care, and other commercial and industrial markets across southern New Jersey and southeastern Pennsylvania; the existing management team will continue to lead the business.

Cascade Services acquired East Coast Mechanical (also known as ECM Air Conditioning) from Air Pros Solutions, LLC to expand its residential HVAC, plumbing, and electrical services presence in Florida and the broader Gulf States. East Coast Mechanical, headquartered in Boynton Beach, Florida, will continue operating under its established brand while leveraging Cascade Services’ operational resources and shared infrastructure.

Knott Mechanical, Inc. received an investment from Astra Service Partners, a division of Orion Group and a portfolio company of Alpine Investors. The investment partners Knott Mechanical with Astra/Orion to support continued growth in commercial and industrial mechanical services across the Mid-Atlantic.

Grizzly MEP, a commercial mechanical, electrical and plumbing (MEP) platform backed by Garnett Station Partners, announced a new partnership with Vermont Mechanical Incorporated. Vermont Mechanical is a full-service mechanical contractor headquartered in Williston, Vermont (with a second office in Lebanon, New Hampshire), and the transaction expands Grizzly MEP’s presence into the New England market.

Southern Home Services announced the acquisition of Nick's Plumbing & Air Conditioning, a provider of plumbing, heating, and air conditioning services in the greater Houston market. The deal expands Southern Home Services’ footprint in Texas to a fourth location, strengthening its presence in a major U.S. home services market. Nick's will continue operating under its current name as it joins Southern’s network of brands.

PremiStar, a provider of commercial and industrial HVAC, plumbing, and building-automation services, announced that Smith's Refrigeration has joined the PremiStar family of companies. The transaction expands PremiStar’s mechanical contracting capabilities in North Carolina and South Carolina. Smith's Refrigeration was advised by Copper Run.

Funded Ventures’ residential and commercial HVAC platform, led by Jim McFarland, acquired Naugle Heating & Cooling in Tecumseh, Michigan. The deal is cited as part of Funded Ventures’ seed portfolio buildout across essential-service sectors in the Midwest; financial terms were not disclosed.

Lennox International completed the acquisition of NSI Industries’ HVAC division, including the Duro Dyne and Supco brands, for approximately $550 million in cash. The business was divested by Sentinel Capital Partners as NSI refocuses on its core electrical products operations, while Lennox expands its HVAC parts and supplies portfolio for residential and commercial customers.

Sila Services, LLC, a national home services platform, announced the acquisition of Oxford Plumbing & Heating, a residential plumbing and heating services provider serving Chester County and surrounding communities. The deal expands Sila Services’ presence in its founding Eastern Pennsylvania market and adds Oxford’s long-standing plumbing, heating, and cooling capabilities to Sila’s multi-trade platform.

Palmetto Air & Water Balance, LLC acquired Bay to Bay Balancing, a Tampa, Florida-based provider of testing, adjusting and balancing (TAB) services. The deal expands Palmetto’s footprint into Florida and represents Palmetto’s sixth add-on acquisition since becoming a portfolio company of SRM Equity Partners; transaction terms were not disclosed.

Canter Power Systems, a residential backup power generator installer and service provider backed by Rotunda Capital Partners, acquired Optimize Generator People. The deal expands Canter’s presence across the Gulf Coast and adds Optimize’s residential generator installation, inspection, and repair operations across Louisiana. This marks Canter’s sixth add-on acquisition since partnering with Rotunda in 2021.

Thompson Safety, a Houston-based provider of fire protection, first aid, and safety services, acquired Austin, Texas-based 1st Fire Safety to expand its fire protection footprint in the Austin market. Under the agreement, former owner Steven Monaco will retain 1st Fire Safety’s specialty products division and continue partnering with Thompson Safety going forward.

Flow Service Partners, backed by Quad-C Management, acquired Weber Refrigeration & Heating, Inc., an HVACR provider serving western Kansas. The deal expands Flow’s capabilities in refrigeration, geothermal, and building automation while maintaining the Weber brand and leadership continuity; financial terms were not disclosed.

Energy Services of America Corporation’s subsidiary, Nitro Construction Services, completed the acquisition of Rigney Digital Systems Ltd Co., a provider of advanced HVAC control systems. Rigney Digital Systems will continue to operate as a distinct business under its existing brand, while leveraging Nitro Construction’s resources to expand building technology and HVAC controls capabilities.

Air Conditioning Specialist, Inc. (ACS), a portfolio company of Hidden Harbor Capital Partners, acquired Clark Heating & Cooling, Inc. Clark is an HVAC services provider headquartered in Dickson, Tennessee serving residential and light commercial customers in Middle Tennessee. The deal was financed by funds managed by First Eagle Alternative Credit and Capital Southwest.

Shore Capital Partners completed a growth partnership with Comfort Temp Company, a Florida-based provider of commercial and residential HVAC, refrigeration, and plumbing services. Shore will support Comfort Temp’s next phase of growth through business development, talent and systems investment, expanded service/maintenance offerings, and pursuing add-on acquisitions across Florida and the broader Southeast.

Silver State HVAC, Refrigeration & Plumbing, a portfolio company of The Edgewater Funds (Edgewater Growth Capital Partners V, L.P.), acquired Atlantic Coast Restaurant & Mechanical Services, a Miami, Florida-based provider of commercial HVAC and kitchen equipment installation and mechanical services. The transaction expands Silver State’s commercial HVAC and facility services footprint across the Southern United States; Edgewater also announced that Silver State completed additional acquisitions of Westaire Heating & Air Conditioning, Tri-Point Refrigeration, and The Whitman Co. in September 2025.

Centre Partners and Baldwin Creek Partners formed TruTemp Holdings, LLC through the acquisition of Maynor Service Company. Maynor, a residential-focused HVAC, plumbing, and electrical services provider headquartered in Raleigh, North Carolina, serves as the foundational platform for TruTemp’s buy-and-build consolidation strategy across the Southeast. Maynor President Brett Chappell invested alongside the sponsors and will lead the business.

Percheron Capital announced the launch of Solidaire HVAC & Energy Solutions, a national commercial HVAC and energy solutions platform, established through the foundational acquisition of Enervise. Enervise, a commercial HVAC services company headquartered in Cincinnati, Ohio, will serve as the initial platform partner as Solidaire pursues expansion across commercial HVAC and related essential services.

Grizzly MEP announced a new partnership with Excel Mechanical Contractors, LLC, expanding Grizzly’s commercial MEP platform into the Mid-Atlantic region. Excel Mechanical, headquartered in Baltimore, Maryland, will continue to be led by CEO James D. Bloom III as it pursues growth with Grizzly’s backing. Grizzly MEP is supported by Garnett Station Partners.

The SEER Group acquired Tuscan Electric, Heating & Plumbing, a fast-growing, family-operated home services provider serving the Denver metro area. Founded in 2020 by Drilon Doda and Armando Cobo, Tuscan will continue operating under the Tuscan name while gaining access to SEER’s operational resources and network as SEER expands its presence in Colorado.

Liberty Service Partners (backed by NorthCurrent Partners) acquired Restivo's Heating & Air, a family-owned HVAC provider based in Providence, Rhode Island. The deal expands Liberty Service Partners’ residential HVAC, plumbing, and electrical services footprint into the Northeastern United States, while the Restivo family will continue operating the business locally.

Northwinds Services Group announced the acquisition of Suburban Services Group, an HVAC, plumbing, and generator services provider serving homeowners in New York’s Capital District. Former owner Craig MacDonald said the partnership will provide shared services and operational support to help Suburban scale while maintaining its local brand and culture.

Thompson Safety announced the acquisition of A1 Shiner, a Texas-based fire protection company. The deal expands Thompson Safety’s fire protection footprint across major Texas markets including Houston, Dallas, Austin, and San Antonio, and adds services such as suppression and alarm to its portfolio.

Silver State HVAC, Refrigeration & Plumbing acquired The Whitman Company, Inc., a commercial HVAC service provider based in Southern California. The deal expands Silver State’s footprint in the southwestern United States and strengthens its service coverage across California, building on its earlier acquisition of Westaire Heating & Air Conditioning.

CCMP Growth Advisors, LP acquired Airo Mechanical, a provider of HVAC and plumbing installation services for multifamily and light commercial projects in the Southeastern United States. The company was acquired from an investor group led by Thomas Investments and Stephens Capital Partners, with Airo’s management team retaining significant equity and continuing to lead the business.

Metro Plumbing, Heating & Air, a residential HVAC and plumbing services provider based in Chattanooga, Tennessee, has been acquired by USA Hometown Experts, a portfolio company of MSouth Equity Partners. FourBridges Capital Advisors served as exclusive financial advisor to Metro’s shareholders. Metro will continue to be led by CEO Drew Hardin following the transaction.

Sila Services, LLC acquired Ahrens & Condill, Inc. and Tangney & Sons Plumbing and Sewer Inc. to expand its HVAC, plumbing, and electrical home services presence in the greater Chicago (Chicagoland) region. The acquisitions add experienced trade teams and broaden Sila’s service capabilities in Chicago and surrounding communities, supporting growth under its lead Chicago brand, AA Service Company.

GHK Capital Partners LP completed the acquisition of Rogers Building Solutions, a provider of specialty mechanical HVAC and plumbing installation, retrofit, and maintenance services across the Southeastern United States. The company, founded in 1962 and headquartered in Douglasville, Georgia, was sold by Aterian Investment Partners and Craft Work Capital (through their joint venture) following a multi-year buildout that included acquisitions such as Coastal Mechanical Services and Sluss & Padgett; financial terms were not disclosed.

Northwinds Services Group announced the acquisition of Lifeline Plumbing, Heating & Cooling, expanding Northwinds’ HVAC and plumbing services platform into the Chicagoland market. Lifeline, a residential plumbing and HVAC service provider, will continue to operate with support from Northwinds’ shared services model across functions such as sales, marketing, operations, finance, and IT.

HomeServe acquired The Manchester Group, LLC (dba IGS Home Warranty) from Interstate Gas Supply LLC d/b/a IGS Energy. Closed on July 31, 2025, the deal adds approximately 113,000 home repair service plans for IGS Energy residential customers across multiple U.S. states, including certain plans offered via Citizens Energy Group (UtilityShield) and SCANA Energy (SCANA Home Warranty). After a transition period ending November 22, 2025, HomeServe will administer service requests and the plans will be underwritten by North American Warranty, Inc.

Leap Partners acquired Cool Wizard Air Conditioning, expanding its home services footprint into the Tampa Bay market. Founded in 2008 by Pino and Barbara Mastrota, Cool Wizard will continue operating under its existing brand, with the Mastrota family continuing to lead the business with Leap’s support and resources.

Paschal Air, Plumbing & Electric acquired JAK Services LLC, an HVAC (air conditioning and heating) provider based in Keller serving the Dallas–Fort Worth Metroplex. The deal expands Paschal’s Texas footprint and brings JAK Services’ operations under the Paschal brand, with founders David and Piper Horton partnering with Paschal through the transition.

PremiStar announced that Rabe Environmental Systems, a mechanical contractor based in Erie, Pennsylvania, has joined the PremiStar family of companies. The transaction expands PremiStar’s commercial and industrial HVAC, plumbing, and building automation footprint into Northwestern Pennsylvania and the tri-state Great Lakes region.

AIR Control Concepts ("AIR") acquired Force Equipment HVAC, a full-service commercial HVAC manufacturers' representative serving the Nebraska market. The deal expands AIR’s Midwest footprint and adds sales, service, and support capabilities in Nebraska through Force Equipment HVAC’s team and commercial HVAC solutions offering.

PremiStar announced that Farmer & Irwin, a mechanical contractor headquartered in Riviera Beach, Florida, has joined the PremiStar family of companies. The partnership expands PremiStar’s commercial HVAC, plumbing, building automation, and related mechanical services footprint in Southeast Florida, adding Farmer & Irwin’s capabilities in HVAC, plumbing, and fire sprinkler system design, installation, and service.

Modigent acquired VMG Mechanical, an Orlando-based mechanical contractor providing commercial HVAC and plumbing services across Central Florida. The transaction adds VMG Mechanical to Modigent’s national platform, providing VMG access to capital, vendor relationships, and back-office support to accelerate growth in commercial, institutional, and municipal end markets.

Air Conditioning Specialist, Inc. (ACS), a portfolio company of Hidden Harbor Capital Partners, acquired David Taylor Heating & Air Cond, LLC (DTHA). Headquartered in Anderson, South Carolina, DTHA provides HVAC services to residential and light commercial customers in northwest South Carolina, expanding ACS’s presence across the Southeast. The transaction was financed by funds managed by First Eagle Alternative Credit and Capital Southwest.

A Private Family Fund acquired L & I Refrigeration, Inc., a family-owned commercial refrigeration services company. The transaction closed on July 3, 2025, with L & I Refrigeration continuing to serve convenience stores, restaurant chains, and independent retailers across Connecticut and Western Massachusetts.

Climate Efficiency Partners, LLC (CEP) announced it has acquired Tri-Tech Energy, an HVAC preventative maintenance, repair, and design/build installation provider serving commercial and industrial customers. The deal, backed by CEP investor 424 Capital, expands CEP’s customer base and service capacity in northern and central New Jersey and strengthens its Mid-Atlantic footprint.

Champions Group Holdings, a national provider of residential HVAC, plumbing, and electrical services, acquired McAfee Heating and Air Conditioning, a home services company based in Dayton, Ohio. The deal expands Champions Group’s presence in the Midwest, with McAfee expected to continue operating under its existing brand with added support and resources from Champions Group.

Modine announced the acquisition of Climate by Design International (CDI), a Minnesota-based manufacturer of desiccant dehumidification technology and critical process air handlers. The deal expands Modine’s Commercial Indoor Air Quality (IAQ) portfolio, adding humidity-control capabilities and additional U.S. manufacturing capacity to serve markets including pharmaceuticals, healthcare, food processing, and industrial applications.

Limbach Holdings, Inc. acquired Pioneer Power, Inc. for $66.1 million at closing, funded with cash on hand and borrowings under its expanded revolving credit facility. Pioneer Power is a Twin Cities-headquartered mechanical contractor providing industrial and institutional mechanical solutions (including industrial piping, HVAC, and plumbing) across the Upper Midwest, and was previously 100% ESOP-owned.

Trinity Hunt Partners made a majority investment in Blackhawk Supply, a specialty distributor of HVAC parts and related maintenance, repair, and operations products. The investment launches Trinity Hunt’s HVAC distribution platform and positions the business for expansion through organic initiatives and a buy-and-build acquisition strategy.

Leap Partners acquired Air Control Heating and Air Conditioning, an HVAC services provider based in Lexington, Kentucky. Air Control will continue operating under its existing brand, with owner Herbie McGaughey continuing to lead the business following the transaction.

Sila Services, LLC acquired My Plumber Plus, a provider of plumbing, HVAC, and electrical services in the Washington, DC–Maryland–Virginia (DMV) region. The deal expands Sila Services’ presence in Virginia and strengthens its home-services platform across the Mid-Atlantic.

Citation Capital, LLC acquired a majority stake in Gallo Mechanical, a specialty mechanical contractor focused on large-scale HVAC and plumbing installation and services. Gallo Mechanical’s management team will retain a significant ownership interest as Citation partners with the company to support its next phase of growth across the southern and southeastern United States.

Smart Care, a Wind Point Partners portfolio company, acquired Mr. C Refrigeration, Inc., a commercial refrigeration and HVAC installation, repair, and preventative maintenance provider. The deal closed on June 18, 2025, and expands Smart Care’s commercial refrigeration capabilities in Kentucky and the surrounding Central/South-Central U.S. region as Mr. C joins Smart Care’s Climate Solutions business.

Crete United added CAM H.V.A.C. & Construction to its partner network, marking Crete’s first Rhode Island-based partner and further expanding its presence in New England. CAM, founded in 1974 and based in Smithfield, Rhode Island, provides HVAC installation and repair and mechanical construction services across Southern New England. Griffin Financial Group served as CAM’s financial advisor.

Anthony Perera, through Exuma Capital Partners, reacquired Air Pros USA’s legacy Florida operations, returning the HVAC business to Perera’s leadership. The transaction also included the acquisition of Florida-based plumbing company Drain Genie and the generator/electrical contracting brand Personalized Power, following a prior restructuring of the business into regional operations under Chapter 11 proceedings.

Seacoast Service Partners (SSP), a White Wolf Capital Group platform providing plumbing, HVAC and refrigeration services across Florida, acquired Miller Refrigeration. Miller Refrigeration is a commercial refrigeration service provider on Florida’s Gulf Coast focused on 24/7 emergency repair and maintenance in the Sarasota region, and this transaction represents SSP’s twelfth acquisition.

ENFRA, a national Energy-as-a-Service (EaaS) provider, acquired River Mechanical Services, a mechanical contractor and service organization headquartered in Philadelphia, Pennsylvania. The deal expands ENFRA’s presence into the Northeast and adds HVAC, plumbing, and critical system maintenance capabilities serving commercial real estate, healthcare, higher education, and hospitality customers. River Mechanical will continue operating its full suite of services through Mechanical Resource Contractors (MRC), an ENFRA subsidiary.

Garnett Station Partners (GSP) announced the launch of Grizzly MEP, a newly formed commercial mechanical, electrical and plumbing (MEP) services platform. As part of the launch, Grizzly MEP entered its first partnership with Stiles Heating & Cooling (Stiles Services), a founder-owned provider of HVAC, building controls and plumbing services across Georgia and South Carolina.

Redwood Services announced it has partnered with New Jersey-based Guaranteed Service, a residential home services provider offering plumbing, HVAC (heating and cooling), and electrical work. Guaranteed will continue operating under its existing brand and management team while Redwood provides operational, strategic, and financial support; founder Helmi Ben Flah will retain a significant minority ownership stake.

The SEER Group acquired S&S Mechanical, a longstanding HVAC and plumbing services provider, to expand its national footprint and formally enter the Utah market. S&S Mechanical, led by co-owners Cory Pincock and Nate Jackson, will continue operating under its existing brand while gaining access to SEER’s operational tools and resources.

Catalyst Acoustics Group (a portfolio company of KPS Capital Partners) completed the acquisition of Curb Technologies, LLC (Curb Tech), a manufacturer of custom roof curbs for commercial HVAC systems. The deal expands Catalyst’s HVAC vibration isolation and rooftop support solutions portfolio and provides Curb Tech additional scale and resources to support growth. Financial terms were not disclosed.

NMS Capital partnered with Capstone Mechanical management to complete a recapitalization of Capstone Mechanical, LLC; financial terms were not disclosed. Capstone Mechanical, headquartered in Portsmouth, New Hampshire, provides commercial HVAC service and refrigeration maintenance, repair, and replacement services across the Eastern United States. NMS plans to support Capstone’s growth both organically and through acquisitions.

Northwinds Services Group acquired Horn Plumbing & Heating, a home services provider offering plumbing, heating and air conditioning services. Commonwealth M&A advised Horn Plumbing & Heating and its founders through the sale process from preparation and due diligence through negotiations.

R.W. Beckett Corporation acquired Thermo Products, bringing the Thermo Pride heating and cooling product line into the Beckett family of companies. The deal includes Thermo Products’ manufacturing facilities in Denton, North Carolina, as well as Norwood Manufacturing in Norwood, North Carolina, expanding Beckett’s manufacturing and sheet metal fabrication capabilities for the heating industry.

On May 1, 2025, Paramount Mechanical Corporation, an HVAC services provider and portfolio company of Stonebridge Partners, acquired Comfort Solutions of Tidewater, LLC. Comfort Solutions is based in Suffolk, Virginia and provides HVAC installation, maintenance, and repair for commercial, medical, and industrial facilities across the Newport News, Norfolk, and Virginia Beach region. The deal is an add-on acquisition supporting Paramount’s strategy to expand along the Eastern U.S. seaboard.

The SEER Group (SEER) acquired Swan Electric, Plumbing, Heating & Air, a Dallas-area residential and light commercial plumbing, HVAC, and electrical services provider founded by Scott Sarlay and Nicholas (Nick) Riddell. The transaction marks SEER’s entry into the Texas market and its 42nd partner brand, with Swan expected to continue operating locally while leveraging SEER’s resources to expand its Texas footprint. Venture Capricorn served as Swan’s exclusive sell-side advisor.

Pike Street Capital announced an investment in Superior Duct Fabrication, a custom fabricator of technical commercial ducting and related HVAC specialty products. The investment establishes a new platform for Pike Street in the HVAC and air handling sector, with founder/CEO Mike Hilgert retaining a significant stake and continuing to lead the business.

TriplePoint MEP announced the addition of Atlantic Constructors, Inc. (ACI) to the TriplePoint family. ACI, headquartered in Richmond, Virginia, is a heavy mechanical, HVAC, industrial services, and fabrication provider with multiple locations across Virginia and North Carolina, expanding TriplePoint’s mechanical services footprint.

Rite Way Heating, Cooling and Plumbing LLC acquired the residential HVAC division of Berg Enterprises, Inc., operating as Berg's Heating & Air Conditioning, including its residential remodel, service, and maintenance business lines in Cochise County, Arizona. Berg Enterprises will retain its commercial and federal operations and continue serving new-build residential contractors, while Rite Way integrates the residential team effective immediately.

Cascade Services acquired Harrington Air Conditioning, adding the residential HVAC contractor to its residential tri-trade (HVAC, plumbing, electrical) services platform. Founded in 1979, Harrington Air Conditioning serves the St. Petersburg/Clearwater and broader Pinellas County area, and will continue operating under its existing brand while leveraging Cascade’s resources to expand capabilities across the Gulf States.

Mission Plumbing, Heating & Cooling acquired Ultra Heating & Cooling effective April 7, 2025, expanding its home services footprint in the Kansas City metro. The deal brings Ultra’s customers into Mission’s platform with expanded HVAC and plumbing service offerings and operational support from Mission’s parent, Southern Home Services.

Redwood Services announced that it has partnered with Cardinal Heating, Cooling, Plumbing, & Electric, a second-generation residential HVAC, plumbing, and electrical services provider in the Madison, Wisconsin market. As part of the transaction, Cardinal’s owners (Rick, Sharon, Craig, and Keith Ouimette) will retain a significant minority ownership stake and continue to operate the business under the Cardinal name, with Redwood providing operational, strategic, and financial support.

Sila Services, LLC acquired Norfolk Air Heating, Cooling, Plumbing & Electrical and Guy Smith Heating & Cooling to expand its home services presence in Virginia’s Hampton Roads region, including Norfolk and Virginia Beach. The acquisitions add HVAC, plumbing, and electrical capabilities and integrate the two brands into Sila’s multi-brand home services platform.

Silver State HVAC, Refrigeration & Plumbing (part of The Edgewater Funds portfolio) acquired Westaire Heating & Air Conditioning, Inc., a commercial heating and cooling services provider serving Ventura, California and surrounding areas since 1980. The deal expands Silver State’s California footprint, complementing its existing operations in Los Angeles and Sacramento, and adds technicians, installers, and office staff to support a broader service area.

Advantage Distribution Holdings (ADH), an HVAC distribution platform backed by Tigertail Capital Partners, has acquired CTC Supply, a distributor of HVAC equipment, parts, and supplies. CTC Supply, founded in 2000 and headquartered in Fayetteville, North Carolina, will partner with ADH and the Sutton family to accelerate growth across the coastal Carolina region.

Seacoast Service Partners (SSP), a White Wolf Capital Group-backed platform, acquired Quality First Air Conditioning, its tenth acquisition. Quality First provides residential HVAC services (including air conditioning, ductwork, and indoor air quality) in Southern Palm Beach and Northern Broward Counties in Florida. The deal expands SSP’s HVAC footprint in the Boca Raton area and supports its broader Florida growth strategy.

The SEER Group (SEER) acquired Alpine Heating & Air Conditioning, an HVAC services provider based in Eugene, Oregon. The acquisition expands SEER’s footprint in Oregon and brings Alpine into SEER’s network of locally operated residential and commercial trade-services companies.

The SEER Group (SEER) acquired Kilowatt Heating, Air Conditioning and Electric, a provider of HVAC and electrical services serving California’s San Fernando Valley. The deal expands SEER’s presence in California and adds Kilowatt’s long-standing Sherman Oaks and Van Nuys operations to SEER’s collection of residential and commercial trade-services brands.

Leap Partners acquired Greensboro-based Master Plumbers Heating and Cooling to expand its home services footprint in North Carolina. Former owner Lee Amos will continue to lead operations under the Master Plumbers Heating and Cooling brand as the business adds resources for growth through Leap Partners’ platform.

Airtron Heating & Air Conditioning acquired Sierra Air Conditioning, Inc., Sierra Air Conditioning of Idaho LLC, and Silverado Mechanical LLC (collectively “Sierra”), an HVAC installer serving single-family residential new construction homebuilders in Nevada and Idaho. The deal expands Airtron’s footprint into the western United States and supports its strategy to build a national residential new-construction HVAC installation platform. Financial terms were not disclosed.

PremiStar acquired the HVAC services division of Dahme Mechanical Industries, Inc., a Countryside, Illinois-based business. The deal expands PremiStar’s commercial and industrial HVAC service capabilities in northern Illinois and northwest Indiana, with the division’s employees and commercial HVAC customers joining PremiStar’s Frankfort, Illinois operations.

AE Industrial Partners has partnered with United Building Solutions (UBS) to launch a commercial HVAC services platform focused on complex HVAC services for commercial buildings, primarily in the Northeast United States. Concurrently, UBS joined forces with Total Comfort Solutions (TCS), a leading commercial HVAC service provider in North Florida, to expand the platform’s capabilities and geographic reach into the Southeast. Financial terms were not disclosed and both companies’ senior leadership teams will remain in place.

Del-Air Plumbing, Air Conditioning and Electric acquired Gator Air Conditioning, a residential HVAC service provider serving Manatee and Sarasota counties in Florida. The acquisition expands Del-Air’s service footprint into the Sarasota, Bradenton, and Tampa markets. Del-Air is majority owned by Astara Capital Partners.

Graycliff Partners LP announced that its portfolio company, Republic Electric Company LLC (Republic), has combined with T.F. Ehrhart Company (TFE). The combination creates one of the largest HVAC equipment distributors in the Midwest and expands the combined company’s scale, product availability, technical support, and logistics capabilities across the region.

New Harbor Capital announced the sale of Fix-It Group to Two Parks Capital. Fix-It Group, a residential maintenance, repair, and replacement services provider across HVAC, plumbing, and electrical systems, was founded in 2017 and is headquartered in Golden, Colorado.

SubSplit Services Group, LP acquired Stratus Systems, LLC, a high-purity mechanical services and mechanical piping contractor serving high-tech manufacturers and other commercial/industrial customers. Stratus Systems, founded in 2009 and headquartered in Dallas, Texas, will partner with SubSplit to support succession planning and accelerate growth while preserving the company’s culture and capabilities.