About Us

Name: Brennan & Co.
Address: 148 Katama Rd,, Edgartown, MA, 02539
Telephone: (508) 905-4909

Brennan & Co. has been serving homeowners across Martha’s Vineyard since 2003, building a reputation for reliable service and thoughtful system design in a uniquely demanding coastal environment. We support the full range of home comfort and infrastructure systems, including heating, cooling, indoor air quality, generators, and more.

Homes on the Vineyard present unique challenges. These include salt air exposure, seasonal occupancy, historic construction, and high expectations for both performance and discretion. We’ve built our approach around those realities, delivering solutions that are as durable as they are refined. That commitment to quality has helped us earn repeated recognition as Best HVAC Company by Martha’s Vineyard Magazine, reflecting the trust we’ve built across the island.

Call (508) 905-4909 or connect with us via our online contact form.

Advanced Systems Built Around Your Home

Our team stays current with evolving technology and modern equipment, allowing us to integrate advanced systems into both newer homes and classic Vineyard properties. Every recommendation is customized to your home’s layout, usage, and long-term goals. We don’t default to a one-size-fits-all approach when every person and every property is different.

We also prioritize a smooth, straightforward experience from start to finish. Clear communication, efficient scheduling, and careful workmanship are part of every project. For homeowners interested in improving efficiency, we can guide you through available rebates and incentive programs, helping you get more value from your investment. And because privacy matters, you can expect a respectful, low-profile presence on your property at all times.

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A Higher Standard of Home Services

Experience That Keeps You Comfortable Year-Round
With deep industry knowledge and a commitment to doing things right, we ensure your system performs at its best when you need it most.
Comfort Without Compromise or Disruption
We work efficiently & respectfully, providing high-quality service with minimal interruption to your home & routine.
Professionalism You Can Feel at Every Step
From first call to final walkthrough, our team delivers clear communication, dependable scheduling, and workmanship you can trust.
Expert Solutions Built for Coastal Living
We design and service HVAC systems specifically for the unique demands of the island's homes

5 Stars
“The team at Brennan took up the challenge of a complex heat pump 4-zone Wi-Fi interface project and hit it out of the park. Great people, excellent follow-through.”

- Coleman H.
Excellent Job From Start To Finish
“They arrived exactly when they said they would, worked efficiently, and delivered high-quality results. I was extremely pleased with their professionalism and the care they took throughout the entire process.”

- John M.
10 out of 10 Experience
“The quality of the work and the speed of service were truly impressive. I was very pleased with the entire experience and would highly recommend their team.”

- Thiago M.
Excellent Job From Start To Finish
“They arrived exactly when they said they would, worked efficiently, and delivered high-quality results. I was extremely pleased with their professionalism and the care they took throughout the entire process.”

- John M.
Thank You Brennan!!
“I called Brennan's emergency line late on Friday night because my air conditioning was not working. By Saturday morning, the technician came and had it fixed. What great and reliable service!”

- Clif F.
10 out of 10 Experience
“The quality of the work and the speed of service were truly impressive. I was very pleased with the entire experience and would highly recommend their team.”

- Thiago M.
Highly Recommend
“Great HVAC Company on Martha’s Vineyard. Great service and superior installation. I would highly recommend them for all your HVAC needs.”

- Christopher J.
So Great!!!
“They were easy to work with, and the price was competitive with the Island market. What's priceless is that they came when they said they would during installation, and when I've needed service, they arrived on the same day I called, that's an unheard of l”

- Rich S.
5 Stars
“The team at Brennan took up the challenge of a complex heat pump 4-zone Wi-Fi interface project and hit it out of the park. Great people, excellent follow-through.”

- Coleman H.

Reliable Service When You Need It

Working with Brennan & Co. means having a dependable team you can call on whenever the need arises. We back our work with a strong warranty. For urgent situations, we offer 24/7 emergency services, and we strive for same-day scheduling on all calls whenever possible to minimize disruption. We also provide free estimates, making it easy to plan your next project or upgrade.

Centrally based in Edgartown, we take pride in serving the unique heating and cooling needs of the entire Martha’s Vineyard community. Whether you're Up-Island or Down-Island, our local technicians are just a quick drive away.

Reach out today at (508) 905-4909.

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Discover Why Island Homeowners Trust Us

At Brennan & Co., we're always ready to take your call! Give us a call at (508) 905-4909 or fill out the form below to contact one of our team members.

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