M&M Precision Plumbing And Heating Corp
Plumber · Central Islip, NY
Our verdict
Exceptional workmanship and emergency responsiveness, but surprise diagnostic fees undermine the 'free estimate' promise.
Scores are our editorial reading of published customer reviews — not a verification, license check, or guarantee.
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
4 of 5 reviewers praise thorough, high-quality workmanship and professionalism on boiler/heating replacements
2 cited reviews
“extremely thorough, quick, knowledgeable and left everything spotless”
“boiler broke overnight, had someone there by morning”
Cited in 4 of the 5 reviews we analyzed — 2 cited reviews not excerpted here.
Proven emergency responsiveness: overnight boiler failure met with morning arrival and reasonable pricing
1 cited review
“boiler broke overnight, had someone there by morning”
3 reviewers highlight clear communication and thorough explanation of options during service
1 cited review
“extremely thorough, quick, knowledgeable and left everything spotless”
Cited in 2 of the 5 reviews we analyzed — 1 cited review not excerpted here.
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
Website claims 'free estimate' but applies undisclosed trip fees; company only clarified restriction to new systems after the fact when customer called
“free estimate wording...distinction was never explained beforehand”
Hidden diagnostic/trip fees charged despite 'free estimate' promise on website; $161.85 charge applied without upfront disclosure
“free estimate wording...distinction was never explained beforehand”
Keep it in proportion: these concerns are cited in 1 of the 5 reviews we analyzed. Most reviewers report positive experiences — see the full rating picture below.
The evidence — in reviewers' own words
Critical
“I called M&M Precision for what I understood to be an estimate visit for boiler work. The crew was professional, the estimate seemed fair, and everyone I dealt with was pleasant. However, after the visit I received a $161.85 invoice labeled as a “trip fee” / diagnostic charge. No fee was mentioned when scheduling the appointment, and the company website clearly says: “Contact us today for a free estimate.” When I …”
Positive
“Just used M&M Precision to replace my old boiler and hot water heater and I could not recommend them enough. From start to finish, the experience was excellent. They are extremely thorough, quick, knowledgeable and left everything spotless when the job was done. Everything was explained very clearly and they made the entire process stress-free. Very professional and trustworthy. If you’re in need of a boiler …”
“Highly recommend M&M Precision Plumbing & Heating. Max and his team replaced my boiler and water heater and did an outstanding job—efficient, knowledgeable, and very clean. Couldn’t be happier.”
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 21 reviews so far. Treat this as a first read.
Newest review in our sample: May 2026.
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Find plumbers near you
M&M Precision Plumbing And Heating Corpisn't in one of our ranked city guides yet — the nearest covered markets are below.
Nearby: Central Islip · Coram · Ocean Beach · Wading River