DeNardo Heating And Cooling

DeNardo Heating & Cooling works out of Lynnfield, and the reviews describe a shop built for the calls that come at the worst time: a furnace that won't fire on a nine-degree morning, a boiler dead the night before a workday. Owner Guy DeNardo turns up by name in that kind of story — one reviewer says he and a colleague, Mike, responded to a no-heat emergency and were on-site within half an hour of the call. The reputation for speed holds up in the numbers: 4.9 out of 5 across 147 Google ratings, an A+ from the Better Business Bureau, and 49 recent reviews without a single negative one. Recent stories repeat the pattern — a nine-degree-morning furnace failure fixed within the hour, a same-day AC repair, a heating system knocked out by a power surge replaced the next day. Two technicians, Kevin Farnsworth and Constantine, are named again and again, both for solving the actual problem and for leaving the house the way they found it; one reviewer specifically mentioned a heat-pump install where the crew protected newly finished epoxy floors. Some of the reviews go back years rather than weeks — one customer describes the same technician working on their system for over a decade, another mentions a circa-1890s home whose steam heating system the company has kept running. That range, from century-old radiators to new Fujitsu and Mitsubishi heat pumps, shows up across the reviews as ordinary work rather than a rare exception. The one dent in an otherwise clean recent run: one reviewer described a technician as visibly busy and a little stressed during a visit, though the repair itself still held up and the review still called the work professional. For a furnace, boiler, or AC breakdown — or a heat pump or ductless mini-split install — the record here is deep enough to trust: a multi-year Google history, a clean BBB file, and the same technicians' names recurring across dozens of jobs.