Full-Service Heating & Cooling Solutions by Brennan & Co.

At Brennan & Co., we offer a complete range of HVAC services designed to deliver year-round comfort, energy efficiency, and peace of mind for homes and properties across Martha’s Vineyard. Whether you’re managing a large coastal estate, a seasonal vacation home, or a local business, our expert technicians provide precision service backed by years of experience and a reputation for excellence.

From Edgartown to Aquinnah to Oak Bluffs, we’re the trusted HVAC contractors Island residents rely on for tailored solutions, award-winning service, and long-term value.

As a full-service HVAC company, we install, repair, and maintain systems that meet the highest standards of performance and efficiency. Our work is informed by deep product knowledge, coastal climate considerations, and the expectation that luxury homes deserve nothing less than exceptional care.

We proudly provide:

Martha’s Vineyard homes come in all shapes and sizes—historic properties in Vineyard Haven, oceanfront retreats in Katama, rural estates in West Tisbury. At Brennan & Co., we tailor our HVAC services to meet the distinct needs of every property we serve. Whether you’re upgrading your HVAC system, installing new equipment during a renovation, or looking for year-round maintenance, we bring Island-based expertise and white-glove care to every job.