Built for New England. Owned by neighbors.
Black Diamond Energy is a Greater Boston HVAC company on a mission: to make premium, energy-first comfort the default — not the upgrade.
We started Black Diamond because Boston deserved better HVAC.
After two decades in the field, our founders kept running into the same story: homeowners paying premium prices for a "repair-first" industry that never fixed the real problem — inefficient systems on inefficient homes.
Black Diamond Energy exists to flip that. We combine cold-climate heat pumps, energy-efficiency expertise, and a spotless install process into a company that treats every home like its own.
What we stand for
Energy-first
Every recommendation starts with efficiency and long-term savings — not what's easy to sell.
Transparent
Written estimates, clear scope, no surprise fees. Ever.
Homeowner-friendly
We speak plain English, respect your time, and clean up after ourselves.
Premium standards
We install equipment we'd put in our own homes — and stand behind it.
Proudly serving Greater Boston
Not sure if we cover your town? Reach out — we probably do.
Ready for a home that heats and cools like new?
Free in-home estimates across Greater Boston. Same-week install on most systems.