Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Cannon's Plumbing & Heating Co. Inc.. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$290 – $710
Typical plumbing job around $500
Cannon's Plumbing & Heating is a family-run Cape Cod outfit that's been doing plumbing, heating, and gas-piping work since 2000, with Robert Cannon Jr., the company's owner and a state-verified master plumber, running jobs alongside his son Bobby. That Massachusetts plumbing license checks out as active under Cannon's own name. The ten Google reviews on file, all from 2024 into 2025 and averaging 4.9 stars, keep landing on the same story: someone calls, Bob or Bobby shows up fast, and the job gets handled cleanly. One customer described a 25-year-old boiler that over-pressurized after its indirect water heater failed — Bob called back the same Sunday it happened, Bobby diagnosed it the next day, and the crew replaced the boiler, water heater, and associated piping within two days. Others describe an oil-to-natural-gas conversion with a new furnace, a full heating system installation praised for clear communication, a same-week refrigerator ice-maker hookup, resealed toilets, and a same-visit fix for a leaking shower valve. BBB gives the company an A+ rating, though it isn't a BBB-accredited business, and BuildZoom shows 47 listed projects spanning plumbing, gas and piping, boiler and water-heater work, and sewer and septic systems. For plumbing or heating work on Cape Cod, this is a verified, hands-on operation with a consistent, detailed review record, worth a call for anything from a routine repair to a full system replacement.
Bob and company were super awesome! They were genuinely caring and prompt, as well as delivering quality work. I highly recommend Cannon! Anytime I need professional help, I will be reaching out to them!!! Thank you again Bob!
We had a new refrigerator delivered just before Thanksgiving but it needed a new connector to hook up the ice maker feature. I called Cannon's as a new customer and Bobby came out within a couple of days to come hook it up. He was very polite and helpful. I will be using Cannon's for all my future plumbing needs.
We converted our home from oil to natural gas, Bob and Bobby did all the work, new furnace and appliances, fantastic job, wouldn’t use anyone else!
I recently had a new heating system installed by Cannon's Team. Due to their great communication, process was easy. Their team is professional, efficient and personable - taking time to answer questions. GREAT job by a GREAT Team!!!
I found them to be professional, clean and fairly priced, would definitely use them again! Dave
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Certified attributes are verified against the public registry. Others are the business's own statement.
2 changes recorded — last scanned Sep 30, 2026.
Transparent diagnostics5.0
Quoted price holds5.0
Midnight and weekend help5.0
Broad plumbing and HVAC range5.0
Rapid response5.0
Repeat, years-long customers5.0
Same-day water heater help after a leak4.3