M and M Heating, Cooling, Plumbing and Electrical
Plumber · Longmont, CO · Open 24 hours per Google listing
Our verdict
M&M Heating, Cooling, Plumbing and Electrical carries 3,365 Google reviews at 4.9★—only 5 analyzed here, all 5-star—with fast_response in 3 of 5 and tankless water heater, sewer line, and furnace replacement all documented.
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 ↗
Lists 24-hour service on its Google profile — and reviewers describe after-hours calls.
Only 5 reviews analyzed — treat this assessment as a first impression, not a track record.
What reviewers praise
fast_response cited in 3 of 5 analyzed reviews; same-day inspection for dual water heater failure and 24-hour furnace diagnosis-to-install documented.
1 cited review
“We had both our water heaters go out on the same day. M&M came out immediately to inspect situation and got us scheduled for earliest replacement. The team was professional, communicated well and updated me on the process. We went with the tankless heater and couldn't be more pleased.”
Cited in 3 of the 5 reviews we analyzed — 2 cited reviews not excerpted here.
Competitive bidding: beat 4 other companies on price and warranty for a high-efficiency combi-boiler; master plumber's estimate described as 'much more reasonable than other companies.'
2 cited reviews
“I chose MandM for a large heating system replacement because they were always clear and responsive during the bidding process which made me feel comfortable and confident. My new high-efficiency combi-boiler is a piece of art and the company's price and warranty on parts and service were the best of 5 companies I met with.”
“Jim, their master plumber, came out to look at the shower valve that needed replacement and write up a quote. He came across as knowledgeable and trustworthy and gave a much more reasonable estimate than other companies. Blake came out to do the shower valve replacement soon after and was also excellent.”
What reviewers report — the concerns
We looked for patterns of complaints in the 5reviews we analyzed and didn't find any. That's rare — but it's a reading of published reviews, not a guarantee.
The evidence — in reviewers' own words
Positive
“There’s no experience quite like having your furnace call it quits during winter, but because of companies like M & M Heating, cooling, and plumbing this problem was examined, addressed, and fixed all in 24 hrs! From the first inspection and diagnosis with Cody to meeting Tanner and Matt the next day with my new furnace for installation, all the customer service was top notch! They were all calm and respectful and …”
“I purchased a house with ancient HVAC and water heater systems that barely passed home inspection. I knew they would need replacement and hoped they would make it through the winter… But that didn't turn out to be the case. M&M came recommended by several neighbors. When I called M&M to have a technician come and assess my system it turned out that the prior owner had also used them to run a new sewer line to the …”
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 3,365 reviews so far. Treat this as a first read.
Newest review in our sample: Mar 2026.
Should you hire M and M Heating, Cooling, Plumbing and Electrical?
Best for
- Emergency and same-day calls
- Budget-conscious homeowners
- Water heater install/repair
Hire if
- You need fast same-day or after-hours response
- You need a plumber who actually shows up when scheduled
Think twice if
- You need rock-bottom prices with zero flexibility on the quote
- You need warranty-grade work on a complex or high-stakes install
Advice derived from the review analysis above — how we decide.
Own M and M Heating, Cooling, Plumbing and Electrical?
You can respond to our analysis, correct business facts, or dispute the accuracy of a quoted review. Responses that check out get published on this page, and factual errors get corrected — see our corrections policy. We don't remove accurate quotes, but we'll re-run your assessment as your reviews change.
Find plumbers near you
M and M Heating, Cooling, Plumbing and Electricalisn't in one of our ranked city guides yet — the nearest covered markets are below.
Nearby: Longmont · Lyons · Loveland · Platteville