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Typical Greater Boston range for this kind of work, from regional averages — not a quote from Professional Oil and HVAC. 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
Professional Oil and HVAC is a Winthrop, Massachusetts operation run by David Bomarsi, who shows up himself on most jobs and is named directly in dozens of reviews. The Better Business Bureau lists the company as three years in business with an A+ rating, and BBB records a Massachusetts Department of Fire Services oil-burner license through 2027 along with a US EPA registration. The pattern across those three years of reviews is consistent: an emergency call — a dead AC in a heat wave, a furnace that quit overnight — answered the same day or the next morning, at a price well under what bigger shops were quoting. One customer said David resolved an AC problem within an hour for a fraction of the $15,000-$25,000 replacement estimates other companies had given; another said his crew came in hundreds of dollars under two larger North Shore HVAC companies for the same ductless mini-split cleaning job. Customers describe him explaining the diagnosis, sending before-and-after photos of replaced parts, and — in a 2024 review — going out of his way to help a customer track down a hard-to-find pressure switch rather than take on a job he didn't think was needed. Not every account is glowing. In a February 2026 review, one customer said a new furnace installation left the unit oversized and whistling, with the return ductwork installed improperly. Separately, two reviews from later 2025 describe negative encounters with a company vehicle on the road rather than any repair work — one about close passing and phone use while driving, another describing the owner failing to stop after a near-accident and declining to exchange information when contacted afterward. For an HVAC or oil-heat repair, especially an emergency one, Professional Oil and HVAC has an unusually deep run of specific, positive accounts. Given the one detailed complaint about a furnace installation, it's worth confirming duct sizing and asking to see the finished work before signing off on a full system swap.
I am always skeptical when trying to find someone new to do work on my house. I do not take the time to write reviews often but he deserves it. He came out to look at boiler, changed a part and got it fired up. Identified that it was cracked and had to be completely replaced. Out of sympathy he just charged me for the part he replaced. He gave me a quote of what it would cost to install a new heating system. I called a few friends that are contractors and they agreed it was a very reasonable price. Dave came out the following day and installed it with his technician. Very professional and efficient, he even took a few hundred dollars off the price that he initially quoted. He checked in the following day to make sure everything was running fine. Great guy that knows how to run a business!
Avoid this company like a plague. They promised to do a good job after charging premium price and this is what they delivered. The furnace is making whistling noise when the blower goes on because it’s oversized, they didn’t properly installed return duct work . They cut the hole on the side when the old furnace was pulling in the air from the floor to make it up sealed system they didn’t put a hard wired carbon monoxide detector. They didn’t pull a permit so this is far from professional. Also, the owner is super rude and clearly doesn’t care about people’s safety.
A few friendly reminders: 1. it is illegal to pass a bicycle closer than 4ft. 2. It is illegal to be using your phone while driving. 3. It is illegal to cross the double yellow to go around a slower vehicle (and silly to do so just to get to a red light more quickly) 4. It is LEGAL for a bicycle to take the full lane. 5. It is LEGAL to cross the double yellow to safely pass a bicycle. Is it really worth taking on all that liability to… checks notes… save ZERO seconds? We got to the Clarendon Towers at the exact same time…
The owner of this company nearly caused a serious accident this morning that could have cost me my life. Shockingly, he did not stop to check on me or assess the damage. When I called to ask him to stop and exchange information, he laughed at me-even as I expressed how shaken and frightened I was. I have reported the incident to the police, but I believe it's important for others to know the kind of person running this business. Highly recommend anyone but this company UPDATE: I’m no longer a MA resident so this hilarious to me . All I did was file an insurance claim but it is good to know Karma exists! It sounds like begin a bad person caught up to you 😂
My A/C went out during the beginning of the heatwave- I got 4-5 estimates. All of them except David of Professional Oil and HVAC tried to sell me a new system- never even looking to fix my problem. I got quotes of 15K, 20K, 25K- David resolved my problem within an hour for less than $300. He came and began to figure out what the problem, was a blown motor. Hallelujah!!! Honest. Knowledgeable. True Professionalism still exist!!! So Grateful and Highly Recommended!!!
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1 change recorded — last scanned Sep 19, 2026.
Scopes the job before installing3.8