Family-Owned.
Locally Operated.
Here Since 1996.
M&M Heating, Cooling, Plumbing & Electrical has been serving Longmont and the Front Range for nearly 30 years. We built this company on honest work, fair pricing, and treating every customer like family.
Built from the Ground Up in Longmont
Eric Meiers grew up in Longmont and founded M&M Heating, Cooling, Plumbing & Electrical with a simple belief: homeowners deserve honest service at a fair price. What started as a small operation has grown into one of the Front Range's most trusted home service companies — and it's still family-owned and operated to this day.
Eric's sister Melissa manages daily operations, and together they've built a team of certified professionals who share the same commitment to doing things right. Our growth has come almost entirely through repeat customers and referrals — which means we can keep overhead low and pass those savings on to you.
Nearly 30 years later, the mission hasn't changed: show up on time, explain your options honestly, do quality work, and stand behind it. That's the M&M way.
What Sets Us Apart
Home of the 1-Year Test Drive
We accept responsibility for your 100% complete satisfaction with any new equipment installation. If you're not happy within the first year, we'll exchange it or remove it for a full refund. No surprises. No regrets. Guaranteed.
Financing Options
Don't let cost stand between you and a reliable system. We've partnered with GreenSky® to offer flexible financing plans that make new HVAC, plumbing, and electrical equipment affordable. Easy application, fast approval.
Our Service Area
We proudly serve Longmont, Erie, Frederick, Firestone, Dacono, Mead, Johnstown, Berthoud, Niwot, Gunbarrel, Lafayette, Louisville, Superior, and surrounding communities across Boulder, Weld, and Larimer counties.
Careers at M&M
We're always looking for skilled, honest professionals who take pride in their work. Join a family-owned team that values integrity, quality craftsmanship, and taking care of customers the right way.
View Open PositionsThe M&M Difference
These aren't just words on a wall — they're how we run every job, every day.
Honesty First
We don't sell you services you don't need. Our reputation is built on giving honest assessments and straightforward recommendations — even when it means a smaller invoice.
Upfront Pricing
You'll know the cost before we start. No hidden fees, no surprise charges, no upselling. The price we quote is the price you pay, period.
Family Values
We're a family-owned business and we treat every customer like family. That means respect, courtesy, and care for your home as if it were our own.
100% Satisfaction Guarantee
We stand behind every job. If you're not completely satisfied, we'll make it right. Our One Year Test Drive program on installations backs that up in writing.
Licensed, Certified & Insured
NATE Certified
Our HVAC Comfort Experts hold NATE certification — the industry's most respected credential for heating and cooling technicians.
Licensed Electricians
Our electrical team includes a Master Electrician, Journeyman, and Apprentice — all fully licensed and insured for residential and commercial work.
Master Plumbers
Our plumbing department is led by Master Plumbers with extensive experience in residential and commercial plumbing systems.
Fully Insured
Complete liability and workers' compensation coverage on every job. Your home and our team are always protected.
Ongoing Training
Our technicians have logged more consecutive training hours than any team in Colorado. We stay current on the latest equipment, techniques, and code requirements.
Ready to Experience the M&M Difference?
Open 24/7 | Same-Day Service Available
Call (720) 608-3973Serving the Front Range Since 1996
Proudly serving Longmont, CO and surrounding communities.
Primary Service Area
- Longmont, CO
- Erie, CO
- Frederick, CO
- Firestone, CO
- Dacono, CO
Extended Area
- Mead, CO
- Johnstown, CO
- Berthoud, CO
- Niwot, CO
- Gunbarrel, CO
Also Serving
- Lafayette, CO
- Louisville, CO
- Superior, CO
