46 HVAC Service Contractors in Waltham, MA

Waltham sits within the greater Boston metro area, where winter temperatures regularly dip below freezing and summer humidity pushes heat indexes past eighty degrees. This climate pattern creates year-round demands on home heating and cooling systems, with winter heating typically dominating seasonal workload while humid summers drive significant cooling loads. The city hosts eighteen HVAC contractors serving residential and commercial clients, collectively earning an average rating of 4.2 stars across over nine hundred verified reviews, with eight of those contractors offering around-the-clock emergency availability.

Homeowners scheduling standard service calls should expect diagnostic fees ranging from $81 to $216, while routine single-system tune-ups typically fall between $76 and $216 depending on system complexity. Massachusetts maintains rigorous licensing requirements for HVAC work, mandating that contractors hold both a Refrigeration Technician License and either a Sheet Metal or Pipefitter journeyman or master credential through the state Division of Professional Licensure before performing installation or repair work.

Colt Home Services draws consistent praise for technician Joe, who reviewers describe as methodical in assessing system conditions, while Jacky earns recognition for swift responsiveness during cold-weather calls. KEN's HVAC Service similarly fields repeated commendations for either Ken or George, with customers highlighting the team's diagnostic accuracy and fair pricing. Across multiple positive reviews, a common thread involves situations where these technicians identified solutions that resolved issues beyond initial expectations.