# Cannon's Plumbing & Heating Co. Inc.

**Trade:** Plumbing · **Phone:** (774) 263-6138 · **Website:** http://www.cannonsplumbingandheating.com/ · **Languages:** English

**Rating: 3.9/5** (medium confidence) — from 10 reviews across 5 sources.
100% of sentiment-scored reviews read net-positive. Last 6 months: 0 reviews, 0 negative.

## The honest read

Cannon's Plumbing & Heating is a family-owned Cape Cod plumbing and heating company, run by owner and master plumber Robert Cannon Jr. — known to reviewers simply as Bob — working alongside his son Bobby. The company says it has operated in Massachusetts since 2000, and BuildZoom shows 47 recorded projects on Cape Cod. The Better Business Bureau gives it an A+ rating, though the business is not BBB-accredited. Its website lists a self-reported Master Plumber License (#13414) for Robert Cannon Jr. that we were unable to independently verify.

The reviews are consistently strong and describe a genuine range of plumbing and heating work. A November 2024 review described converting a home from oil to natural gas, with Bob and Bobby installing a new furnace and appliances; a separate November 2024 review described a new heating system installed with clear communication throughout; and a September 2024 review described Bob responding quickly to a leaking shower valve and fixing it on the spot. A March 2025 review praised the team as caring, prompt, and high quality, and other reviews describe toilet resealing and a refrigerator ice-maker hookup handled within days of the call. Several customers describe using the company for years running.

No negative reviews turn up among the ten on file — the lowest is a still-positive 4-star review calling the work professional, clean, and fairly priced.

For plumbing and heating work on Cape Cod — from routine repairs to a full oil-to-gas conversion — Cannon's has an unbroken run of strong reviews and a long-operating family business behind it; it's worth confirming current license status directly with the state before a larger job, since it wasn't independently verified here.

**Strengths:**
- Quick, responsive service — reviewers cite same-day or next-day fixes
- Family-run team — Bob and son Bobby both named and praised
- Handles big installs — furnace conversions and new heating systems cited
- Long-tenured customers — several reviewers describe multi-year relationships

**Where sources disagree:**
- The self-reported Master Plumber License #13414 for owner Robert Cannon Jr. does not match a state registry lookup, which instead shows an expired HVAC license numbered 13414-SM-J1 held by a different individual, David R Armstrong — the two appear unrelated, and this registry entry doesn't verify anything about this business's plumbing license.

## Claims & citations

Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication.

- Website lists a self-reported Master Plumber License #13414 for owner Robert Cannon Jr., not independently verified _(confidence: low)_
  - [Official Website](http://www.cannonsplumbingandheating.com) — “Ownership (self-reported): Owner-operated by Robert Cannon Jr., identified as the owner and master plumber.”
  - [Official Website](http://www.cannonsplumbingandheating.com) — “Self-reported license/registration number (NOT verified against any registry): Master Plumber License #13414”
- BBB gives an A+ rating; the business is not BBB-accredited _(confidence: high)_
  - [Better Business Bureau](https://www.bbb.org/us/ma/marstons-mls/profile/heating-contractors/cannons-plumbing-heating-0021-15037) — “Better Business Bureau grade: A+”
  - [Better Business Bureau](https://www.bbb.org/us/ma/marstons-mls/profile/heating-contractors/cannons-plumbing-heating-0021-15037) — “BBB profile for Cannon's Plumbing & Heating Co., Inc. lists an A+ BBB rating, states the business is not BBB Accredited, and describes plumb…”
- The company says it has operated in Massachusetts since 2000 _(confidence: low)_
  - [Official Website](http://www.cannonsplumbingandheating.com) — “Company history (self-reported): Established in Massachusetts since 2000.”
- BuildZoom shows 47 recorded projects for the company on Cape Cod _(confidence: medium)_
  - [BuildZoom](https://www.buildzoom.com/contractor/cannons-plumbing-and-heating-co-inc) — “47 project(s) shown on BuildZoom”
  - [BuildZoom](https://www.buildzoom.com/contractor/cannons-plumbing-and-heating-co-inc) — “BuildZoom identifies Cannon's Plumbing and Heating Co Inc. in Barnstable, Massachusetts, with 47 listed projects, plumbing, gas and piping, …”
- 4.9-star average across 13 Google ratings _(confidence: high)_
  - [Google](https://www.google.com/maps/search/?api=1&query=Cannon's%20Plumbing%20%26%20Heating%20Co.%20Inc.&query_place_id=ChIJ70Dv7Zcz-4kRfK1wTA4JXeQ) — “Google: 4.9★ from 13 ratings”
- A November 2024 review describes converting a home from oil to natural gas with a new furnace and appliances _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMzd05QWTJ3RRAB!2m1!1s0x0:0xe45d090e4c70ad7c!3m1!1s2@1:CIHM0ogKEICAgIC3wNPY2wE%7C%7C?hl=en) — “5★ 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 an…”
- A November 2024 review describes a new heating system installed with clear communication throughout _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURYdjZPMGlnRRAB!2m1!1s0x0:0xe45d090e4c70ad7c!3m1!1s2@1:CIHM0ogKEICAgIDXv6O0igE%7C%7C?hl=en) — “5★ I recently had a new heating system installed by Cannon's Team.
Due to their great communication, process was easy.
Their team is profess…”
- A September 2024 review describes a quick same-visit fix for a leaking shower valve _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNIdnZDYnNRRRAB!2m1!1s0x0:0xe45d090e4c70ad7c!3m1!1s2@1:CIHM0ogKEICAgICHvvCbsQE%7C%7C?hl=en) — “5★ We had a minor but annoying leaking shower valve. Bob Cannon responded quickly, brought a new valve with him, got it changed out immediat…”
- Multiple reviewers describe being long-time repeat customers _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNud2Y2OFZ3EAE!2m1!1s0x0:0xe45d090e4c70ad7c!3m1!1s2@1:CIHM0ogKEICAgICnwf68Vw%7C%7C?hl=en) — “5★ I had the pleasure of first working with Bob and his team during a renovation last year.  When finished I asked if I could be a regular c…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNIMW9DX3pnRRAB!2m1!1s0x0:0xe45d090e4c70ad7c!3m1!1s2@1:CIHM0ogKEICAgICH1oC_zgE%7C%7C?hl=en) — “5★ Cannon's Plumbing & Heating is reliable, professional and reasonable! Their team is dedicated to doing a great job. We have been working …”
- Specializes in Plumbing _(confidence: high)_
  - [Google](https://www.google.com/maps/search/?api=1&query=Cannon's%20Plumbing%20%26%20Heating%20Co.%20Inc.&query_place_id=ChIJ70Dv7Zcz-4kRfK1wTA4JXeQ) — “Google: 4.9★ from 13 ratings”
  - [Better Business Bureau](https://www.bbb.org/us/ma/marstons-mls/profile/heating-contractors/cannons-plumbing-heating-0021-15037) — “Services offered (Better Business Bureau): installation and repair of Plumbing, Heating & Gas piping”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNIdnZDYnNRRRAB!2m1!1s0x0:0xe45d090e4c70ad7c!3m1!1s2@1:CIHM0ogKEICAgICHvvCbsQE%7C%7C?hl=en) — “5★ We had a minor but annoying leaking shower valve. Bob Cannon responded quickly, brought a new valve with him, got it changed out immediat…”
- Specializes in HVAC / Heating & Cooling _(confidence: high)_
  - [Better Business Bureau](https://www.bbb.org/us/ma/marstons-mls/profile/heating-contractors/cannons-plumbing-heating-0021-15037) — “Services offered (Better Business Bureau): installation and repair of Plumbing, Heating & Gas piping”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMzd05QWTJ3RRAB!2m1!1s0x0:0xe45d090e4c70ad7c!3m1!1s2@1:CIHM0ogKEICAgIC3wNPY2wE%7C%7C?hl=en) — “5★ 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 an…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURYdjZPMGlnRRAB!2m1!1s0x0:0xe45d090e4c70ad7c!3m1!1s2@1:CIHM0ogKEICAgIDXv6O0igE%7C%7C?hl=en) — “5★ I recently had a new heating system installed by Cannon's Team.
Due to their great communication, process was easy.
Their team is profess…”

## Ownership

- Identifies as family-owned — the business's own statement, not independently verified.

## License

Status: **expired** (#13414-SM-J1, hvac) — verified against the official MA state registry on 2026-08-24, never self-reported.
Re-check at the official registry: https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page

## Sources

- [Google](https://www.google.com/maps/search/?api=1&query=Cannon's%20Plumbing%20%26%20Heating%20Co.%20Inc.&query_place_id=ChIJ70Dv7Zcz-4kRfK1wTA4JXeQ): 4.9★ from 13 ratings
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=Cannon's%20Plumbing%20%26%20Heating%20Co.%20Inc.&query_place_id=ChIJ70Dv7Zcz-4kRfK1wTA4JXeQ): Listed on this source
- [Better Business Bureau](https://www.bbb.org/us/ma/marstons-mls/profile/heating-contractors/cannons-plumbing-heating-0021-15037): Listed on this source
- [Official Website](http://www.cannonsplumbingandheating.com): Self-reported profile and service details
- [BuildZoom](https://www.buildzoom.com/contractor/cannons-plumbing-and-heating-co-inc): Listed on this source

## Recent reviews

- **5/5 · Google Reviews · Kyle Jason · 2025-03-22**: 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!
- **5/5 · Google Reviews · Robert Riley · 2024-12-09**: 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 futur…
- **5/5 · Google Reviews · Nancy Weston · 2024-11-01**: 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!
- **5/5 · Google Reviews · Stephanie Gortz · 2024-11-01**: 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!!!
- **4/5 · Google Reviews · David MacDonald · 2024-10-08**: I found them to be professional, clean and fairly priced, would definitely use them again! Dave
- **5/5 · Google Reviews · Ted Popielnicki · 2024-09-26**: I had the pleasure of first working with Bob and his team during a renovation last year.  When finished I asked if I could be a regular customer, the answer was yes.  Well a few days ago our indirect water heater failed and over pressurized our 25 year old boiler (I did not know that was the problem…
- **5/5 · Google Reviews · Janet Maxim · 2024-09-06**: Great communication and attention to details.I would highly recommend!!
- **5/5 · Google Reviews · Tammy Staiger · 2024-09-05**: Cannon’s Plumbing did a great job resealing our toilets!! They are very efficient and knowledgeable, would recommend them highly!
- **5/5 · Google Reviews · David DeVane · 2024-09-05**: We had a minor but annoying leaking shower valve. Bob Cannon responded quickly, brought a new valve with him, got it changed out immediately. Bob and his son Bobby are both highly competent and professional plumbers. They are both really nice guys as well.  I highly recommend Cannon's Plumbing and H…
- **5/5 · Google Reviews · Laurie Broderick · 2024-09-04**: Cannon's Plumbing & Heating is reliable, professional and reasonable! Their team is dedicated to doing a great job. We have been working with them for several years and are very happy they are a part of our team!!!  Our clients have been very happy with their services and have taken them on after pr…

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Data freshness: last scanned 2026-08-24T08:20:46.049Z.
Cite as: Cannon's Plumbing & Heating Co. Inc. — Tavlee (https://tavlee.com/contractor/cannon-s-plumbing-and-heating-co-inc)
Source: https://tavlee.com/contractor/cannon-s-plumbing-and-heating-co-inc