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Boilers, furnaces and oil tanks: Connolly and Sons is a heating and air company in Rhode Island. Google shows 5 stars from 67 ratings. One recent customer came back from vacation to a boiler that was not working; Connolly and Sons came out the next day and got it up and running. A customer with a leaking oil tank says they came out the same day to diagnose it and replaced the tank within the week, finishing before a weekend storm. A customer whose furnace had a major malfunction another company couldn't figure out says Connelly took about 15 minutes to figure out the issue and repair it with parts in their truck. A 2026 customer said the company had earlier installed a new boiler for them at a good price, then came back for the annual cleaning. A customer writes that Connolly and Sons have been servicing their heating and cooling equipment for years. The company says it has been in business 30 years and will service most of Rhode Island. Its Better Business Bureau grade is A+. Rhode Island lists HVAC licence 00007786 as active, held by Michael G Connolly III.
I highly recommend Connelly and Sons! They installed a new boiler for us last year and gave us a great price. The entire experience was excellent, and we were very happy with their work. This year, they came back to do our annual cleaning and once again provided great service. They were able to come out very quickly, were professional, and did a great job. It’s nice to find a company you can trust and continue to rely on year after year. We’ll definitely continue using Connelly and Sons for our heating needs!
I had a leaking oil tank. They came out same day to diagnose and were able to replace within the week. Very professional, efficient, and reasonably priced. Thank you for completing before the storm this weekend!
Service was efficient and friendly / Price was as expected / Arrived within the appointed time frame for winter tune up. Connelly & Son first serviced my furnace in 2025, it had a major malfunction another company couldn't figure out. Connelly took about 15 min to figure out the issue and repair it with parts in their truck. I will always use Connelly & Son and recommend you do also.
Highly recommend. Great people. Connolly and Sons have been servicing our heating and cooling equipment for years.
Came back from vacation to find that my boiler was not working. Connolly and sons came out the next day and got it up and running. Prompt and efficient service.
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1 change recorded — last scanned Oct 4, 2026.
Typical your area range for this kind of work, from regional averages — not a quote from Connolly and Sons Heating and Air, Inc. 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
Heating and A/C split-system install3.8
Handles complex old-house retrofits5.0
Expansion tank and PRV cut water pressure from 110 to 70 PSI4.8
One customer relationship spans 20 years of service4.7
Heat pump and furnace installed by Tony3.9
