Net Zero Heating & Air Conditioning LLC

Net Zero Heating & Air Conditioning is a Billerica, Massachusetts HVAC contractor specializing in high-efficiency heat pumps and ductless mini-splits for Middlesex County homeowners, also handling conventional AC, furnace work, and a plumbing line. The company holds an active Massachusetts HVAC license, is BBB accredited with an A+ grade, and its technicians are NATE certified, a Mitsubishi Diamond Elite Dealer, and a Bryant Factory Authorized Dealer. Reviewers, including several recent ones from mid-2026, consistently describe successful heat pump installations, including in older homes such as an 1870s house and an 1842 house where the system had to be designed around historic construction. Multiple reviewers highlight fast emergency response, such as a next-day AC fix during a heat wave and an overnight condenser failure repaired first thing the following morning. Technicians named across reviews — Andrew, Brian (the owner), Steve, and Jordan — are repeatedly praised for honest diagnosis, including one case where a technician found a part fix instead of pushing a full replacement. Several reviewers also note help navigating Mass Save rebates and loans during installation, and competitive pricing against other quotes obtained. Long-time customers describe years of annual maintenance with the same reliable technicians. The rating is corroborated across platforms: 5.0 stars on Google (100 ratings), Thumbtack (40 ratings), Angi, and HomeAdvisor, with positive mentions in local subreddits as well. The written record shows no reported complaints across dozens of reviews spanning 2017 to 2026. For a homeowner considering a heat pump conversion, especially in an older home, or needing HVAC maintenance and repair, Net Zero has a long, well-documented track record; it's worth confirming current service-area coverage and lead times directly, since the company's stated territory is Billerica, Lexington, and Lincoln.