Affordable Heat & Air

A dead central AC on the first hot day of May 2026, a call placed late on Tuesday, and the owner rang back inside a minute. The technician was there next morning: a mouse had chewed a wire and the system was filthy. That is the shape of this North Billerica shop — small, fast on the phone, and specific about what is actually wrong. Affordable Heat & Air has been a BBB Accredited Business since May 2005 and holds an A+, with 21 years in business on that profile. It is an authorized Rheem dealer and a Mass Save-certified installer, and the Mass Save connection is one of the things customers write about most: guidance through the rebate paperwork, help when the heat loan program changed mid-application, an oil-to-propane conversion pushed through a couple of snowstorms in January 2023. The name that recurs is Jimmy, the technician. In April 2025 a homeowner credited him with tracking down an improperly installed air return that had been producing a noxious odor for five years — five other companies had looked at it without venturing a guess, and he ended up calling manufacturer support. In December 2025 another had a 43-year-old furnace swapped for a ductless mini-split system and a new condenser inside a week, with space heaters lent in the meantime. Two things to ask about. In July 2024 a customer wrote that after a technician diagnosed a bad relay, the company "ghosted me for over two weeks" and would not return calls; a different company then got the same system running, and charged $100 against the $200-plus quoted. In February 2022 another said the owner cancelled twice at the last minute. A milder note from October 2023 has the crew arriving two hours late for a boiler tune-up, with the call coming an hour and a half past the slot — though that same reviewer says the work and the explanation were good. Nothing negative has been written in the past six months. One small thing to check if crew size matters to you: the BBB profile lists three employees, while reviews name Bryan, Jimmy, Nathan and Gary. For furnace and AC replacement, heat pumps and mini-splits, water heaters, and a Mass Save project you would rather not navigate alone, the record here is deep and consistent — 53 reviews since 2021 under a 4.7 Google average across 75 ratings. Pin down who calls you back if a diagnosis needs a second visit.