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B & G Heating and Air Conditioning is a Watertown HVAC company that says it has served the area since 1961 as a family-owned business. Its website describes residential and light commercial installation, repair, maintenance, inspections, and custom fabrication, with emergency service, free estimates, and licensed-and-insured technicians. Recent Google reviews repeatedly describe dependable HVAC work. Customers mention same-day diagnosis and repairs, central-air and furnace installations, ductwork and condensers, prompt callbacks, and technicians who explain options clearly. One customer says a central-air installation in a 1938 house has worked well for years; another says B&G replaced an HVAC system within two weeks after a winter service call. An Exa mention also calls a B&G installation “Fabulous, clean.” The company looks suited to homeowners and light-commercial customers seeking ongoing heating and cooling service, replacement, or maintenance. One Google review describes plumbing work rather than HVAC, so confirm that the review and the exact service scope belong to this B&G business before relying on it for a plumbing job.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from B & G Heating and Air Conditioning. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
“We used B&G Heating and Air Conditioning on Clematis St. in Waltham. Fabulous, clean installation.”
Shawn Whitney is the best plumber in the Boston area I have seen in 40 years. He is very knowledgeable and honest, works hard, produces excellent results, and his prices are very reasonable. He communicates very well, handles emergencies promptly, and is very friendly. I recommend him most highly.
These guys have done work for me for 25 years and they've been fantastic every time. In my own houses in Watertown and Wayland and a rental in Allston. Top quality work and very reasonable prices. Highly recommend.
Quick service and fair prices
B & G has taken care of us for over 25 years. We have had multiple heat and air conditioning problems this past year and each time they have arrived the same day and diagnosed and fixed the problem.
They installed central air in our 1938 house, using clever ways to navigate running vents through closets that don’t perfectly line up, etc. The central air has worked great for years now - highly recommended!
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Certified attributes are verified against the public registry. Others are the business's own statement.
No changes recorded yet — last scanned Sep 9, 2026.
Lays out three repair options up front4.0
Fast emergency response2.9
Detailed workmanship3.3