Committed to Your Home and Community
At SumZero, we’re not just an HVAC contractor — we’re a team of design-first, mission-driven professionals who believe in doing things the right way.
Our story began in a Florida training room and took root at a Panera Bread table. Since then, we’ve grown into one of Massachusetts’ most trusted names in heat pump installation and electrification — not because of what we sell, but because of how we serve.
This page is your starting point for learning who we are, how we work, and what we believe.
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Our Story
From two guys with a shared conviction to 1,800+ installs across Massachusetts.
This is where it all began.
Our Mission
We don’t push products — we lead transparent conversations about whether heat pumps are right for your home.
Our Core Values
Values like “We Care” and “We Do the Hard Stuff” aren’t slogans — they’re how we show up, every day.
Meet the People Who Make It Happen
Our Leadership
Get to know the folks guiding our field crews, coordinating installs, and keeping promises behind the scenes.
How We Work
Our Process
Learn the 7-step framework we follow for every heat pump project, from consultation to post-install care.
Not Sure Where to Start? We’ll Guide You
Let our experts design the right heating and cooling solution—customized for your comfort, your layout, and your energy goals. No pressure. Just clarity.
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