DeNardo Heating And Cooling

DeNardo Heating And Cooling is a Lynnfield HVAC outfit with an A+ Better Business Bureau grade and a Google page running 4.9 stars across 147 ratings — Angi's four reviews average a perfect 5. The volume behind those numbers is real: 111 reviews on file going back to 2021, and the same few names keep showing up across them — Guy DeNardo himself, and technicians Kevin Farnsworth, Constantine and Gaetano. The current run of reviews reads almost entirely the same way: fast response, technicians who explain what they're doing, and cleanup that leaves no trace. Reviewers describe Guy and his team responding to a furnace failure within a half hour of a referral call, replacing a corroded Fujitsu mini-split motor same-day, and returning the next morning after an AC repair just to confirm it held. One commercial customer credits DeNardo with getting a leased space's HVAC running again during a summer heat wave after years of a previous system failing seasonally and costing them business. The deeper history backs that pattern up: in a 2024 review, a homeowner had DeNardo replace a leaking 24k Fujitsu system with a more complex 45k four-zone install across two days without issue, and in another 2024 review, a customer described Guy diagnosing and fixing a dead AC unit the same day a 90-degree heat wave hit. Two accounts complicate the picture. In a 2025 review, a customer having a routine boiler checkup said the technician did competent work but left greasy boot-print stains on the baseboard of a newly finished basement den. And in a 2022 review, a customer said DeNardo couldn't complete part of an install — a return had to be finished by another company — and called the company's follow-up maintenance and repair pricing, including a $300 charge for a 30-minute diagnostic visit, excessive. Neither is representative of the broader run of reviews, which lean heavily toward repeat customers who've used DeNardo for years of annual service, but they're worth asking about directly: confirm what a service call costs before it's booked, and ask that boots come off, or get covered, in finished spaces.