J.A. Frederick Plumbing and Heating

Mice chewed through the AC wiring and a homeowner came back on a Sunday evening in July 2024 to an 85-degree house. They started calling HVAC companies at 7am Monday; J.A. Frederick had a technician free from a cancellation, and cool air was blowing by 10am. Speed on the call-now jobs is the thread running through most of what customers write here. Jeffrey A. Frederick has run the shop since June 1997 — 29 years by the BBB's count — and incorporated it as an LLC in October 2024. His Massachusetts plumber licence, 24756-PL-J, is active in the state registry under his own name, and the business has held BBB accreditation with an A+ grade since June 2025. The work spans both trades: residential and commercial plumbing, sewer and drain service, furnace repair, boiler installation, AC repair and new installations, with a 24/7 emergency line and Hearth financing offered on the site, which also calls itself Mass Save certified in its own words. Google sits at 4.5 stars across 17 ratings. The written record is short but consistent — four reviews so far in 2026, all positive if brief ("Fast service and excellent communication" in April), a December 2024 customer who used them at both an office and a home and singled out how cleanly the work was done, and a September 2021 homeowner with a main sewer line leak in the basement who had someone on site within the hour. Two one-star reviews from January 2023 are the counterweight, and both are worth reading in full. One describes an oil-to-heat-pump conversion started in July 2022 that was still unfinished months later, with repeated leaks, electrical faults and noise problems, and installers let go partway through before the owner came out himself. The other describes a heating call over the 2022 New Year holiday: a technician left thermostat wires exposed without finding the fault, a manager visited and did not fix it, and a promised return visit never happened. Nothing of that shape has appeared in the three and a half years since. For a leak, a clogged drain, a sewer line, or a heat or AC failure that needs someone the same day, this is a licensed small shop that answers the phone. For a multi-day system conversion — the job the 2023 complaints were about — pin down the milestones, the completion date and who stays on the crew before any deposit changes hands.