M and M Heating & Cooling, Plumbing & Electrical
Company Overview
Prompt ? Clear Pricing ?? Qualified Experts ?? Cooling Systems ? & Furnace Repair & Upgrade ?? Drain Solutions ?? Finance Options Available ??
M and M Heating & Cooling has operated in Longmont for more than years. Being family-run, I bring 26 years of knowledge in the heating, ventilation, and air conditioning field, and we have numerous satisfied customers.
Our name for trustworthiness and content customers over the last two decades has permitted us to thrive on loyal and referral customers, especially during economic downturns. This allows us minimize our overhead and offer the top products at a more affordable cost to you during challenging periods.
We strive to keep our business straightforward and successful. High-volume businesses incur significant operational expenses, which include daily advertising, elevated liability costs, and extra service vehicles, to name a few. Ultimately, these costs are handed down to the client.
We value, and we anticipate doing business with you. Grown up in Longmont, we have strived to make M and M Heating & Cooling, Plumbing & Electrical the preferred option for plumbing, HVAC, and electrical services. My sister, Melissa, who is my elder by two years, serves as our office manager and handles the overflow phone lines when our dispatcher Rachel and our dispatcher Donna are busy. We are a family-operated enterprise. Reach out today and become a member of the M and M family.
Business Services
- Bathtub installation
- Bathtub repair
- Circuit breaker installation
- Circuit breaker repair
- Drain installation
- Drain repair
- Electric inspection
- Electric installation or replacement
- Electric panel installation
- Electric panel repair
- Electric repair
- Wire installation
- Wire repair
- Electric vehicle charging station installation
- Electric vehicle charging station repair
- Faucet installation
- Faucet repair
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Generator installation
- Generator repair
- Hot water recirculation pump repair
- HVAC installation or replacement
- HVAC system repair
- HVAC system maintenance
- Light fixture installation
- Light fixture repair
- Outdoor lighting installation
- Outlet installation
- Outlet repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Sump pump repair
- Switch installation
- Switch repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | Open 24 hours |
Tue: | Open 24 hours |
Wed: | Open 24 hours |
Thu: | Open 24 hours |
Fri: | Open 24 hours |
Sat: | Open 24 hours |
Sun: | Open 24 hours |
Recommended Customer Reviews

Received a written estimate for $850.00 to repair furnace. Tech came out for 90.00 and indicated could get a deal on a new furnace for $3975.00 or repair existing furnace for $850.00 quote. Called to get a second tech from another company to get another estimate of what it would take to repair furnace. Second tech was out for 30 minutes and repaired furnace for $130.00 for a very basic repair.

Expect a $300 up charge for repairing a capacitor. If air conditioner is buzzing
, buy your own and do it yourself

When I purchased my house I knew that the A/C, water heater and furnace were going to have to be replaced. I read many reviews and M and M had the most impressive list of satisfied customers. Also I had a personal referral from a family member that recommended them but I still got quotes from several contractors. Boy was I happy I chose Eric and his team. They were professional and up front about what was going to happen. I was happy with their competitive quote and their samples of work. After Eric gave me a quote I booked his staff to install everything within a few days. I couldn't be happier with the end product. If you want it done right and at a competitive price it doesn't get any better than M and M heating and Air Conditioning.

Eric and Team Brian and Cody, did a great job installing our AC last week. They were professional, on time, communicative, and respectful. Out of all the bids we got for this job, Eric Meiers is the only person who asked to look upstairs for vents and air return. He is also the only one who gave us a thorough, written explaination of proposed scope of work and products. Competitively priced.

I called M and M for a routine heating and a/c yearly service based on the reviews I'd seen on Yelp. I unfortunately cannot provide a positive review. The guy they sent out was worthless. He did not do anything that I'd seen previous HVAC companies do as part of a yearly maintenance. He basically just looked at the heater, did not clean it or anything. And then the a/c, he just looked at the outside unit, didn't clean it off or anything. It was a total waist of money and I'll never have this company come out for anything again.

Our A/C stopped working and so we called this company and made an appointment.
The appointment was set up by my husband and he tells me he was told a $45 service charge would be required plus $45 for the first half hour of work (but that second part was a bit unclear and we were unclear on this until the owner explained to me, the bill was a bit surprising initially) make sure you understand this as it means the minimum chagre is really $90! This is still in line with others in the area. We were told they would be here around 2:30-3 but it wasnt until 4:45 or so that my husband received a call that the service man would be arriving shortly and they arrived at 5:15ish. The part we needed, according to the information on our receipt, sells for $20-30 online. We were charged $145. This is more than a 400% markup... Based on my research, a part like that should be more 100-300% markup so I felt that this was high. It may be that the part is more specialized, I can only go off the information I was given, but if that is the case, perhaps markup amounts were lower.
3 hours later, my house was still extremely hot. I don't know how long it is supposed to take but we received no information on that.
Plus side, my husband and I agreed that the service man was nice and quick. After we called and complained, they came out the next day and apparently hadn't checked the freon levels, which also needed to be fixed (freon is being phased out and is very expensive, which added more to our bill but it was this or a new unit and I did check to confirm prices for the gas were consistent, didn't feel a concern with this) Now the air is working and there was no second charge for service so I bumped to 4* but that's up on rounding since I would have expected everything to be checked the first time and would have appreciated more information on when to call back if it didn't work the first time.
*Note: review reflects my opinion but I have discussed this service call with the owner and he is very keen to make sure you are happy and we will most likely use them again ourselves when something happens, just go in with eyes wide open regarding that this is an expensive household repair.
Update:
The owner contacted my husband as well and was very helpful in resolving several of my issues, including what I saw as an overcharging of parts and for the ""extra service charge"" not being properly explained.
He worked with us to address all the concerns and we are both satisfied as of this time with this company.

Boy are these guys fast, efficient and good! No BS, just straight forward and very friendly.
Ten year old A/C seemed to be getting tired and I called to schedule a general maintenance service call, AKA check it all out, to make sure everything was good. I figured they'd schedule something in a few weeks as it wasn't an emergency. No, they had a reschedule with someone else and within an hour, someone was over looking at the unit.
The technician was very knowledgeable, gave me his opinion and options. No BS, just the facts, cost and I approved the work.
VERY HAPPY with their service will ONLY call them from now on!

I had M&M install a new furnace and a/c unit. Eric and his team did a great job - from the informative & educational explanation of needs, to explaining how the process would go, to offering me a competitive price, to actually doing a great job and finally to solid follow-up to ensure everything was as expected. Truly a professional & caring contractor that I would highly recommend!

Fair prices. Fast response time when we had a heating emergency. Friendly employees.

These guys are AWESOME! My dad was having problems with his air conditioner and it has been scorching. I asked them to go out to his house and bill me. They were fast (next day!) and it was an easy fix that really cost just the visit fee. It was great - honest, very pleasant, and extremely helpful. I really like having home specialists and I can trust and these guys are it for me in Longmont. Thanks for the really great service!