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Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Cotti-Johnson HVAC, Plumbing and Electrical RI. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$290 – $710
Typical plumbing job around $500
Cotti-Johnson has worked out of 30 Waverly St in Taunton for generations — the company puts its history at around 78 to 82 years — and covers HVAC, electrical and plumbing work under one roof, backed by an active Massachusetts plumbing license held directly by the company. On Angi, the pattern across 25 reviews from 2019 through early 2025 is consistent: install crews (often naming Gil, Luis, Sam and Adam among others) get credit for explaining the work as they go, showing up on time, and cleaning up after big jobs like AC systems, furnaces and backup generators. Several reviewers mention multi-day installs that finished exactly as scheduled. Its BBB profile (A+, accredited since 2021) tells a more mixed story: alongside a positive account of a laundry-room leak found and fixed, two reviewers describe real friction — a $119 charge just to have a technician look at an issue, and a $1,400 blower repair from December 2023 that failed again within the year. For AC, heating, generator or panel work, the Angi record is deep and specific; for anything under warranty or a repeat issue, it's worth asking directly how Cotti-Johnson handles a comeback repair before booking.
Communication was excellent. Tech showed up on time and went above and beyond on the work. I'll certainly reach out to Cotti-Johnson for any future work.
Excellent - everyone I have met at this Company is knowledgeable, professional, and courteous.
Excellent work petformed
It went well. Found the problem and it was quickly fixed
Best experience I've had so far being a homeowner. TIm D was very knowledgeable didn't try to force me to do something else that I didn't want or make sense to do. I'm actually considering doing my central air sooner than later because of the great finance options they have available. Which is why I didn't complete the C-wire service it only makes sense to do it all at once under one invoice.
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1 change recorded — last scanned Sep 18, 2026.
Persistent problem-solving5.0
Rapid emergency response5.0
Handles complex retrofits5.0