CMP Plumbing & Heating - Plumbers In NH
Plumber · Derry, NH
Our verdict
Fast emergency response (within an hour) with expert workmanship, but verify they still do residential work—one recent caller was turned away for residential requests.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
Ranked #13 of 14 plumbers we've reviewed in Derry, NH · compare all →
Our opinion, based on the 5 reviews we analyzed from Google, Yelp and BBB · Analysis updated Jun 2026 · How we decide ↗
Only 5 reviews analyzed — treat this assessment as a first impression, not a track record.
What reviewers praise
Emergency response time: 2 of 5 reviews specifically mention rapid arrival (within an hour or on-time arrival) for urgent plumbing issues
1 cited review
“Called ahead of time and arrived on time”
Cited in 2 of the 5 reviews we analyzed — 1 cited review not excerpted here.
Professional workmanship and attention to detail: 4 of 5 reviews praise quality of work, including heating system installation completed in less than a day and thorough cleanup
2 cited reviews
“Perfect heating system installation in less than a day”
“Called ahead of time and arrived on time”
Cited in 4 of the 5 reviews we analyzed — 2 cited reviews not excerpted here.
Fair pricing: 2 of 5 reviews explicitly note reasonable or fair pricing
Cited in 2 of the 5 reviews we analyzed.
Courteous and communicative: reviewers describe proactive communication, cleanup, and follow-up questions about additional needs
2 cited reviews
“Called ahead of time and arrived on time”
“Perfect heating system installation in less than a day”
What reviewers report — the concerns
Other directories bury these. We think you should read them before you call. Every concern below comes from the reviews it cites.
Red flag
Potential scope shift: 1 recent reviewer (2023) was told CMP only does commercial work and was turned away for a residential quote request, contradicting multiple recent positive residential reviews
Cited in 1 of the 5 reviews we analyzed.
Keep it in proportion: these concerns are cited in 5 of the 5 reviews we analyzed. Most reviewers report positive experiences — see the full rating picture below.
The evidence — in reviewers' own words
Critical
“Called in to see if I could schedule a quote, but was told that they only do commercial work. Not sure when they switched, since some of the recent reviews imply that the work was residential.”
Positive
“They came called head of time and arrived on time and fixed my faucet in the utility room that was leaking, cleaned up all the mess, then went outside and installed a new faucet outside.they asked if there was anything else I would need their services..I would recommend them if anyone needs plumbing done..”
“They were wonderful, I had a few emergencies and they were right there within the hour and did a fabulous job, There price was very reasonable,I would highly recommend CMP Plumbing to anyone looking for a professional job..Carrie Amaral”
Quotes are reproduced verbatim from public reviews on the platforms shown; we select which to feature, and selection reflects our editorial judgment. Report a quote that doesn't match its source ↗
The rating picture
Small sample — we've analyzed only 5 of 14 reviews so far. Treat this as a first read.
Newest review in our sample: Jun 2023.
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