About Cornerstone Heating & Cooling
Cornerstone Heating & Cooling is an established well-respected hvac contractor serving homeowners across Cambridge, MA since 2003. Services include central AC and furnace install and repair, heat pump conversions, ductless mini-split installs, ductwork design and replacement, indoor air quality systems, and the increasingly popular spring/fall maintenance plans that keep manufacturer warranties intact. The technicians on staff carry NATE certifications and are happy to walk customers through a Manual J load calculation before quoting any system replacement, so you never end up with an oversized or undersized system.
Cornerstone Heating & Cooling serves homeowners across Cambridge, MA and surrounding ZIP codes including 02138, 02139, 02140, 02141, 02142. Pricing is up-front and quoted in writing before any work begins, with no obligation if the estimate isn't right for your project.
Services offered
- Central AC install & repair
- Ductless mini-split install
- Heat pump conversion
- Indoor air quality systems
- Smart thermostat install
Service area
Cornerstone Heating & Cooling covers Cambridge and the surrounding metro, typically responding to addresses within 25–35 miles of 02141. Same-day appointments are commonly available for non-emergency requests booked before noon, and 24/7 emergency dispatch is offered for active leaks, electrical hazards, no-heat/no-cool calls, and lockouts when applicable.
Licensing & insurance
FixNearMe verifies that Cornerstone Heating & Cooling holds an active MA contractor license (#MA-650822) and carries general liability insurance covering work at residential properties. We re-verify licensing annually and remove any pro whose status lapses or whose review pattern deteriorates.
How to request a quote
Use the free quote form on this page to send your job details directly to Cornerstone Heating & Cooling and up to two other nearby hvac pros in Cambridge. You'll receive up-front written quotes — usually within an hour during business hours — so you can compare apples to apples before booking.