Heating Services in Longmont, CO
Furnace repair, tune-ups, replacement, heat pumps, boilers and radiant heat from the family-owned team that has kept the Front Range warm since 1996.
Heating Services Built for Front Range Winters
Winter along the Front Range does not ease in. A mild October afternoon can turn into a hard freeze overnight, and your heating system has to be ready for it. M&M Heating, Cooling, Plumbing & Electrical has kept Longmont homes and businesses warm since 1996, and our NATE-certified technicians work on every type of heating equipment found in local homes: gas furnaces, heat pumps, boilers and radiant floor systems.
Whatever you need, you will find it here. If your heat has stopped or the system is acting up, start with furnace repair. If it is running fine and you want to keep it that way, a furnace tune-up is the best money you will spend all fall. If the unit is old, loud or expensive to run, our furnace replacement team will size a new system properly and back it with our One Year Test Drive.
We also install and service cold-climate heat pumps, boilers and radiant floor heating. Every visit comes with upfront pricing, a 100% satisfaction guarantee and the same rate for nights and weekends, because that is usually when heat decides to quit.
Every Heating Service Your Longmont Home Needs
From emergency repairs to new high-efficiency installations, choose the service that fits your situation.
Furnace Repair
No heat, strange noises or short cycling? 24/7 furnace, heat pump and boiler repair with upfront pricing and no overtime rates.
Learn MoreFurnace Maintenance
A fall 27-point tune-up and cleaning that catches safety issues, lowers gas bills and keeps your warranty valid. Included with Loyalty Club.
Learn MoreFurnace Replacement
Honest repair-vs-replace advice, right-sized high-efficiency installation, financing and the One Year Test Drive on every new furnace.
Learn MoreHeat Pumps
Cold-climate heat pump installation, repair and maintenance, including dual-fuel systems that pair with your furnace for the deepest cold.
Learn MoreBoilers
Repair, annual service and replacement for hydronic boilers feeding radiators, baseboard heat and in-floor systems. All brands, 24/7.
Learn MoreRadiant Floor Heating
Warm floors and even, silent heat with no blowing dust. Hydronic radiant design, installation and service for remodels, additions and new homes.
Learn MoreFind the Right Heating Help
Not sure which service you need? Match your situation below and we will point you to the right team.
No Heat or Weak Heat
If the furnace will not start, keeps cycling on and off, or blows lukewarm air, you need a repair visit, not a sales pitch. We diagnose first and quote the fix before any work begins.
It Works, but It Has Not Been Checked
A furnace that has not seen a technician since last winter is running on luck. A fall tune-up catches cracked heat exchangers, dirty burners and weak igniters before they leave you cold.
Aging, Loud or Expensive to Run
A furnace past 15 years with rising gas bills and repeat repairs is a replacement candidate. We compare repair versus replace honestly and size the new unit for your home, not a guess.
Interested in Heating With Electricity
Cold-climate heat pumps now handle Front Range winters, often paired with a gas furnace as backup for the deepest cold snaps. One system heats in winter and cools in summer.
Your Home Has a Boiler
Baseboard radiators and hydronic heat need a technician who understands system pressure, expansion tanks and zone valves. We repair, maintain and replace boilers of all brands.
Cold Floors and Uneven Rooms
Radiant floor heat warms a room from the ground up with no blowing air, no dust and no noise. It is ideal for additions, basements, bathrooms and whole-home remodels.
The M&M Difference
Nearly 30 years of keeping Longmont and the Front Range warm, one honest service call at a time.
Family-Owned Since 1996
We are based on S Bowen Circle in Longmont, and the people who answer the phone and show up at your door are neighbors, not a call center in another state.
Open 24/7, No Overtime Rates
Heat fails at 2 a.m. on the coldest night of the year. We answer around the clock, and nights, weekends and holidays cost the same as a Tuesday afternoon.
NATE-Certified Technicians
Our heating technicians are NATE-certified, licensed and insured, and trained on all makes and models, so you get an accurate diagnosis the first time.
Upfront Pricing, Guaranteed Work
You approve a written price before we start. Every job carries a 100% satisfaction guarantee, and new equipment is backed by our One Year Test Drive.
Our 4-Step Process
Simple, transparent and the same whether you need a quick repair or a whole new system.
Call or Book Online
Tell us what the system is doing. If it is an emergency, we dispatch right away. If it is a tune-up or an estimate, we book a time that fits your schedule.
Diagnose and Explain
A NATE-certified technician inspects the system, finds the real cause and walks you through what they found in plain language, with photos when it helps.
Approve the Price
You receive a written, upfront price for the recommended work. Nothing starts until you say yes, and the price does not change once you do.
Fix It, Test It, Clean Up
We complete the work, verify the system is running safely and leave the space the way we found it. If you are not happy, we make it right.
Heating Questions From Longmont Homeowners
What types of heating systems do you service?
All of them. Our technicians repair, maintain and install gas furnaces, cold-climate heat pumps, dual-fuel systems, boilers and radiant floor heating, and we work on all makes and models. We serve both residential and commercial customers across Longmont and the Front Range, from older bungalows with original boilers to new builds with high-efficiency furnaces.
Do you charge extra for nights, weekends or holidays?
No. We are open 24/7 for emergency heating service, and there is no extra charge for nights, weekends or holidays. You pay the same upfront price you would on a weekday afternoon. Front Range cold snaps do not keep business hours, so we do not either.
How do I know whether I need a repair or a replacement?
Start with age and repair history. A furnace under 10 years old with a single problem is almost always worth repairing. One past 15 years with repeat breakdowns, rising gas bills or a cracked heat exchanger is usually a replacement. Our technicians give you both options with real numbers, and our free second opinion is available if someone else has already told you to replace.
What is the Loyalty Club Membership?
It is our maintenance plan, starting as low as $21.95 per month. Members get two included tune-ups per year, a 27-point furnace precision tune-up and cleaning in the fall and a 23-point A/C precision tune-up and cleaning in the spring, plus discounts on all services and priority scheduling when you need us most.
What is the One Year Test Drive?
It applies to new equipment installations. If you are not 100% happy with your new furnace, heat pump or boiler for any reason within the first year, we will make it right, up to and including exchanging the equipment or removing it and refunding your money in full. Conditions may apply, and we will explain them before you sign anything.
Which communities do you serve?
We are headquartered in Longmont and serve the surrounding Front Range, including Erie, Frederick, Firestone, Dacono, Mead, Johnstown, Berthoud, Niwot, Gunbarrel, Lafayette, Louisville and Superior. If you are nearby and not sure whether you are in our area, give us a call and we will let you know.
Need Heat? We Are Ready When You Are
Open 24/7 | Emergency Service Available
Call (720) 608-3973Heating Services Across the Front Range
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
