FIELD SERVICES NEWS

United Building Solutions Acquires Western Pennsylvania HVAC Specialist

2026-05-14 7:06 am

Conshohocken-based United Building Solutions (UBS) has expanded its reach in the commercial HVAC industry with the acquisition of McCarl’s Services Inc., a specialist in commercial and industrial HVAC and refrigeration services headquartered in Cranberry Township, Pennsylvania. The acquisition, announced on April 23, marks a major milestone in UBS’ strategy to build a national platform for mechanical services.

McCarl’s Services Inc., established in 1946, brings over 80 years of experience in delivering HVAC, refrigeration, and mechanical solutions to customers across western Pennsylvania, Ohio, and West Virginia. The company is known as one of the largest service-focused operators in the region, catering to both commercial and industrial clients. Following the acquisition, McCarl's will continue to operate as a division of UBS under the leadership of its current president, Mike McCarl.

For McCarl’s, joining UBS is an opportunity to grow while continuing its longstanding tradition of service excellence.

"Having served the western-Pennsylvania region for three generations, joining UBS’ rapidly expanding network will allow us to enhance our capabilities and accelerate growth while maintaining our commitment to technical expertise, superior quality, and outstanding service", said Mike McCarl, president of McCarl’s.

This transaction represents the third add-on acquisition for UBS since 2025, when AE Industrial Partners established the company as a national commercial HVAC services platform. (I've covered one of their previous acquisitions of DFW Mechanical.) The addition of McCarl’s, alongside the previous acquisitions, has expanded UBS’ operations from three Mid-Atlantic states to 11 markets across the Northeast, Midwest, Southeast, and South-Central United States.

"Since its founding in 1946, McCarl’s has built a strong regional reputation for its commitment to service and excellence, making them a valuable addition to our rapidly expanding network", said David Leathers, CEO of United Building Solutions. "In addition to extending our geographic reach, the acquisition of McCarl’s aligns with our broader strategy of providing specialized service solutions that support organizations in critical market sectors."

Bryan McElwee, partner at AE Industrial Partners, had this to say about the acquisition:

"The integration of McCarl’s into the UBS network marks another milestone in our vision of creating a nationally-scaled commercial HVAC platform that can meet the growing demands for comprehensive mechanical services for mission-critical infrastructure. McCarl’s is a service-first operator with deeply embedded customer relationships, specialized technical capabilities, and a strong management team that makes it an ideal fit with the UBS platform. Mike McCarl and his team have built something exceptional and we’re excited to give him the resources and infrastructure to accelerate what’s already working."

With McCarl’s now part of its portfolio, UBS continues to solidify its position as a leader in the HVAC and mechanical services industry, extending its ability to deliver specialized, high-quality solutions to a growing client base across the United States.

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Johnny O'Malley
Johnny O'Malley is a seasoned field service business owner. He started with the tool belt on, over 35 years ago. He eventually went out on his own and grew from a single man operation to a 9-figure plumbing business. Johnny regularly shares insights on emerging trends, workforce development, and service excellence. He has a passion for mentoring other owners and leaders and helping them grow into pillars for their community.