Complete heating services for homes and businesses near you
Full-Service Heating Services In Longmont, Colorado
At Longmont Heating and Air Pros, we offer complete heating services including installation, repair, and maintenance for all types of systems. Our team ensures your heating system runs efficiently and reliably during colder months, helping you stay comfortable while reducing energy costs. From routine maintenance to full system upgrades, we’ve got you covered.
Heating Services in Longmont, Colorado
We are your local Longmont Heating and Air Pros, and keeping homes warm through a Front Range winter is the heart of what we do. The cold here is real. When the temperature drops and the wind comes off the foothills, your heating system is what stands between your family and a long, uncomfortable night, and a system that fails on the coldest morning is the last thing anyone wants to deal with. Whether you heat with a furnace, a boiler, or a heat pump, you want a team that knows the local homes and does the work right.
That is exactly what we offer. We are the trusted local heating experts in Longmont, and we cover the full range of heating work under one roof, furnace repair and installation, boiler service, and heat pump systems. We have worked on just about every kind of setup in just about every kind of home around here, from the older places near Old Town to the newer builds spreading east. We diagnose accurately, install carefully, and because most heating systems involve combustion, we take the safety side as seriously as the comfort side.
Whether you are in the heart of Longmont, out in Mead, up the canyon in Lyons, or high in Allenspark, your local HVAC pros you can count on are ready to keep your home warm.
Our Heating Services in Longmont, Colorado
Furnace Repair
The furnace is the workhorse of most Longmont homes, and when it starts acting up in the middle of winter, the whole house feels it fast. A furnace that blows lukewarm air, heats unevenly, or quits entirely turns daily life uncomfortable in a hurry. Catching trouble early often means a smaller repair instead of a full breakdown on the coldest night, which is exactly why it pays to address furnace problems as soon as you notice them through our long heating season.
Common Problems We Fix
- The furnace runs but the air coming out feels lukewarm at best
- Loud banging or popping the moment the system starts up
- The blower running constantly and never shutting off
- A burning or musty smell each time the heat kicks on
- The igniter or pilot failing to stay lit
- Heat arriving unevenly, leaving cold pockets through the house
- The thermostat reading one number while the rooms feel like another
- Heating bills climbing with no clear reason
- The furnace cycling on and off far more than it should
Our furnace repair work starts with a real diagnosis. We inspect the heat exchanger, burners, igniter, blower motor, gas valve, and safety controls so we understand the root of the problem before touching a part, and we check the venting and combustion side carefully because safety comes first with any gas furnace. A complaint like lukewarm air can trace back to several different causes, so getting the diagnosis right is what makes the repair hold. Once we find and correct the issue, we confirm the furnace is heating evenly and operating safely, so your Longmont home stays warm through the rest of the winter.
Furnace Installation
There comes a point with any furnace when replacing it makes more sense than repairing it again, and choosing the right system and installing it properly sets the tone for years of comfort and safety. A well-installed furnace heats your home evenly, runs efficiently, and vents safely through every cold Longmont winter. A rushed or poorly sized installation leads to cold rooms, wasted fuel, and a system you fight with, which is why this work deserves real care.
Reasons Homeowners Choose a New Furnace
- An aging furnace that keeps needing repairs and cannot keep up
- Heating bills climbing year after year with the same old unit
- A furnace that heats unevenly, leaving some rooms cold
- A unit old enough that parts have become hard to source
- An addition or remodel the existing furnace was never sized for
- Buying a home with a tired furnace near the end of its life
- Concerns about an older furnace’s safety or venting
- Wanting quieter, more efficient operation before the next winter
- A complete failure that makes replacement smarter than another repair
A proper installation starts with sizing the furnace to your actual home, looking at square footage, layout, insulation, and how the house holds heat, because an oversized unit short cycles and an undersized one never keeps up on a cold night. We remove and dispose of the old equipment, set the new furnace, and make the gas, electrical, and venting connections to specification, taking real care with the combustion side because safety depends on it. Then we test the system, confirm it heats evenly and vents safely, and walk you through how it runs. Done right, a new furnace gives your Longmont home dependable, even warmth for years.
Boiler Repair and Installation
Plenty of the established homes around Longmont rely on boilers paired with radiant or baseboard heat, and there is a lot to love about that steady, even warmth when it is bitter cold outside. But a boiler is its own animal, and keeping one running right takes someone who genuinely understands hydronic heating. Whether your radiators have gone cold or your boiler is showing its age, this is work that rewards real knowledge of these systems.
Common Problems We Fix
- Radiators or baseboards that stay cold while the boiler runs
- Knocking or gurgling sounds traveling through the pipes
- Pressure that drops too low or climbs too high on the gauge
- Leaks around valves, fittings, or the boiler body itself
- The system taking far too long to heat the house
- An ignition or pilot that will not stay lit through a cycle
- Uneven warmth from one room or one floor to the next
- Rising fuel use that points to a system losing efficiency
- The boiler shutting itself down and tripping a safety lockout
Boiler trouble is rarely as simple as it looks, so our process means checking pressure, circulation, the expansion tank, the pump, and the controls together rather than chasing one symptom. Cold radiators can come from trapped air, a failing circulator, low pressure, or buildup, and the fix for each differs. We also watch carefully for combustion and venting concerns, since safety is paramount with these systems. For a boiler installation, we size the system to your home’s heating load and balance it so every room gets its share of heat. Done well, a boiler delivers comfortable, dependable warmth to your Longmont home for many winters.
Heat Pump Installation and Repair
Heat pumps have become an increasingly popular heating option in Longmont, and for good reason. A modern cold-climate heat pump both heats and cools efficiently from a single system, pulling warmth from the outdoor air even when temperatures drop, which makes it a genuine year-round comfort solution. For homeowners looking to heat and cool with one efficient system, a heat pump is worth a serious look, and getting it sized and installed correctly is what unlocks that efficiency.
Common Problems We Fix
- The heat pump runs but the house is not warming up
- The system stuck in one mode and not switching between heat and cool
- Ice building up heavily on the outdoor unit in winter
- Weak airflow or air that never reaches a comfortable temperature
- The unit short cycling, turning on and off too frequently
- Strange grinding, buzzing, or rattling from the outdoor unit
- Rising energy use with no change in how you run the system
- The system running constantly during cold snaps without keeping up
- The unit refusing to start or shutting down unexpectedly
When we install a heat pump, we size it carefully to your home and make sure the refrigerant charge, airflow, and electrical connections are all dialed in, because these systems depend on correct setup to deliver their efficiency, especially in our colder stretches. For a repair, we check the refrigerant, the reversing valve that switches between heating and cooling, the defrost cycle, and the controls to find the actual cause rather than guessing. We also talk with you honestly about backup heat where it makes sense for the coldest Longmont nights. Done right, a heat pump gives you efficient, dependable comfort in both seasons from one system.
Reach out to us for assistance.
Why Longmont Homeowners Choose Longmont Heating and Air Pros
We Handle Every Kind of Heating System
Heating problems do not stick to one type of equipment, and neither do we. Furnaces, boilers, heat pumps, we work on all of them, which means you have one local team for whatever your home relies on rather than juggling different companies. The older homes around Longmont often run boilers or aging furnaces, the newer ones lean on modern high-efficiency systems, and more homeowners are turning to heat pumps every year. Having worked across all of these in the area means whatever your situation, we have very likely handled it before.
We Take Combustion Safety Seriously
Most heating systems involve combustion, gas, and venting, so safety is never an afterthought in our work. A furnace or boiler that is not venting properly can be a real hazard, not just an efficiency problem, so we check the combustion and venting side as a matter of routine. We also recommend working carbon monoxide detectors in any home with a gas heating system, since carbon monoxide is colorless and odorless. That careful approach protects your home and your family, which matters more than anything else we do.
We Diagnose to the Root Cause
The quick way to handle a heating complaint is to address the obvious symptom and leave. We would rather find what is actually driving it. When a homeowner near Southmoor Park called us about a furnace that kept shutting down, the easy move would have been to replace the igniter and go. Instead we traced it to a restricted flue, corrected the real problem, and the furnace has run clean ever since. That discipline is why our heating repairs hold instead of turning into a repeat call a few weeks later.
We Are Genuinely Local
We are not a regional outfit routing crews in from down I-25. We live and work right here, so when your heat quits during a cold Longmont night, we are rarely far away, and we understand how heating needs differ between Old Town and the newer subdivisions on the east side. Being your local heating experts in Longmont means familiar, responsive service rather than a crew learning your area on the fly.
We Give Honest Repair-or-Replace Guidance
Sometimes a repair is clearly right, and sometimes an aging system has reached the point where a replacement makes better sense. We tell you plainly which situation you are in, without pushing you toward more than you need. That honesty is how we have built our name in Longmont over the years, and it is why homeowners keep calling and keep sending their neighbors our way, season after season.
Our Service Process
1. You Reach Out and We Listen
When you contact us, we ask the right questions to understand what your heating system is doing, how long it has been happening, and how urgent it is. In winter, knowing whether you still have any heat shapes how fast we move, and that conversation tells us a lot about the likely cause before we even reach your Longmont home.
2. We Diagnose or Assess Carefully
For a repair, our technician inspects the system and tracks the issue to its root, checking the combustion and venting side along the way. For an installation, we evaluate your home to size the system correctly. Either way, we explain what we find in plain language so you understand the situation and your options.
3. We Do the Work Right
Once you understand the situation, we get to work with the proper parts and methods, carrying common components so many repairs are completed in a single visit. Whether it is a repair or an installation, we do it to last through the heating season and beyond, and we take real care with the safety side on every job.
4. We Test, Confirm, and Clean Up
Before we leave, we test the system, confirm it is heating evenly and venting safely, and make sure the work is truly complete. Then we clean up after ourselves. You are left with a warm home and a heating system you can trust through the coldest weeks of the year.
Service Area in and Around Longmont, Colorado
Longmont is home base for our heating work, and we cover the entire city, from Old Town and the streets near downtown, where boilers and older furnaces are common, to Spring Gulch, Southmoor Park, the Prospect neighborhood, and the newer subdivisions on the east side. Wherever you are inside the city, we bring the same expertise to your furnace, boiler, or heat pump.
We also serve the surrounding communities that share our corner of Colorado. Up in Mead, the fast-growing family town to the northeast, we keep heating systems of all kinds running through the winter. Out in Lyons, the foothills town where the St. Vrain Creeks meet, the canyon cold puts real demand on a home’s heat, and we know those homes well. And higher up in Allenspark, the mountain village near Rocky Mountain National Park, dependable heat is essential through long, cold winters, and we understand how these systems need to perform at elevation. No matter which of these you call home, you get the same careful, knowledgeable heating service.
Reach out to us for assistance.
Professional Heating Repair vs DIY Attempts
When the heat goes out on a frigid night, the urge to fix it yourself is understandable, but heating repair is one of the riskiest jobs to take on as a DIY project. Most heating systems combine gas, combustion, venting, and electrical components, and a mistake with any of those can be far more serious than a system that simply does not work. We have been called to plenty of Longmont homes where a well-meaning repair attempt left the problem larger and, in some cases, created a real safety hazard.
Combustion safety is the clearest reason to leave this to a professional. A furnace or boiler that is not burning fuel cleanly or venting properly can produce carbon monoxide, which is colorless and odorless and genuinely dangerous, and assessing that takes training and the right tools. The gas connections themselves carry real risk as well. If you smell gas or suspect a gas leak, go outside immediately and call 911 – this is a serious emergency that needs urgent attention from the gas company. That is never a step to second-guess, and it is exactly the kind of situation careless work can create.
There is also the matter of diagnosis across different system types. A furnace that will not heat, a boiler losing pressure, or a heat pump stuck in one mode each trace back to different causes, and swapping parts one at a time while the house grows colder burns money fast. Our technicians read these systems the way you read weather coming over the foothills, recognizing the patterns because we have seen them so often in Longmont homes. That experience turns a frantic, freezing night into a focused repair that actually restores your heat. Simple upkeep like changing filters and keeping vents clear is genuinely yours to handle, but for real repairs and installations, leaning on a professional protects your home, your equipment, and your family’s safety.
Heating & Air Conditioning Services
Complete Home Comfort Solutions for Your Property
From heating system repairs to air conditioning maintenance and installations, our team has the tools and expertise to keep your home or business comfortable year-round. We deliver reliable, high-quality HVAC service you can count on.
We Deliver Expert Results
Don’t settle for temporary fixes. We combine years of hands-on experience with modern technology to deliver long-lasting heating and cooling solutions. Our team values your time, your comfort, and your property.
- Heating System Repair & Maintenance
- Furnace Repair & Installation
- Air Conditioning Services
- AC Repair & Tune-Ups
- HVAC Diagnostics & System Checks
- Indoor Comfort Solutions
Frequently Asked Questions
Why is my furnace blowing cold or lukewarm air?
When a furnace runs but the air feels cool, the cause could be a clogged filter restricting airflow, a thermostat set to the wrong mode, an ignition problem, a struggling burner, or a furnace overheating and shutting its burners down as a safety measure. Sometimes the blower is simply running on a fan setting and moving unheated air. This is a common heating repair call across Longmont once the cold sets in, and we diagnose which cause is actually at play rather than assuming, so the fix is the right one and your home warms back up.
Should I repair my heating system or replace it?
It comes down to the age of the system, how often it has needed repairs, and how efficiently it still runs. A furnace, boiler, or heat pump with plenty of life left is usually worth repairing. The math shifts when an older system faces a major repair or has lost noticeable efficiency. At that point, a replacement may serve your Longmont home better over the long run. We lay out both paths honestly so you can decide what fits your situation and how long you plan to stay.
Why are my radiators cold when the boiler is running?
This is a classic boiler issue, and it usually points to trapped air, which is why radiators often need bleeding to release pockets that block hot water from circulating. It can also be a failing circulator pump, low system pressure, a stuck valve, or buildup restricting flow. Many established homes around Longmont rely on hydronic heat, and these problems are very fixable. We check pressure, circulation, and the controls together to find the actual cause rather than just treating the symptom.
Can a heat pump really keep my home warm in our winters?
Modern cold-climate heat pumps heat surprisingly well even when our Front Range winters turn sharply cold, which surprises a lot of people. The technology has improved dramatically, and these systems pull heat from outdoor air efficiently down to low temperatures. For most Longmont homes they handle heating well, and where backup heat makes sense for the very coldest stretches, we will tell you honestly. A heat pump gives you both heating and cooling from one efficient system.
How often should I have my heating system serviced?
We recommend a thorough check once a year, ideally in the fall before the heating season ramps up. An annual service catches small issues before they leave you without heat on a cold night, keeps the system running efficiently, and gives us a chance to confirm everything is venting and operating safely, which matters with any combustion system. It is a small bit of upkeep that spares you a much bigger headache in the middle of winter.
How much does heating repair or installation cost?
It depends entirely on what is involved, since a small repair is a very different job than a full system replacement. We are not going to throw out a number before we have seen your system, because that would not be honest or accurate. What we will do is diagnose the situation, explain clearly what it involves, and lay out your options before any work begins, so you understand everything and can decide with confidence.
What should I do if I smell gas near my furnace or boiler?
Treat it as urgent and do not wait. If you smell gas or suspect a gas leak, go outside immediately and call 911 – this is a serious emergency that needs urgent attention from the gas company. Once the area is safe and the gas company has addressed the leak, reach out to us and we will inspect the system thoroughly to make sure everything is operating safely before you rely on it again.
How long do heating systems last?
It varies by type. A well-maintained furnace typically lasts fifteen to twenty years, a boiler often longer at fifteen to thirty, and a heat pump usually in the range of fifteen years. The quality of the installation and regular maintenance make a real difference in reaching the upper end. When your system is approaching the end of its expected life and starting to need repairs, it is worth planning ahead rather than waiting for a failure on the coldest night.
Do you install high-efficiency heating systems?
We do. Modern high-efficiency furnaces, boilers, and heat pumps use considerably less energy than older equipment, and when properly sized and installed, many homeowners notice the difference in their winter energy use. The key is correct installation, since even the best system underperforms if it is poorly matched to the home or set up carelessly. We make sure a new system in your Longmont home is dialed in to deliver the efficiency it is built for.
Is there a good company near me for heating service in Longmont and nearby towns?
You are looking at it. We are based right here and handle heating work throughout Longmont along with Mead, Lyons, and Allenspark. Being local means faster response, real familiarity with the homes and systems in each community, and a name your neighbors already know and trust. When you want heating work done by people who actually know the area and take safety seriously, we are genuinely close.
How can I avoid heating breakdowns in winter?
Regular maintenance is the best prevention. Changing your filter on schedule, keeping vents and the area around the equipment clear, and having the system checked each fall all catch small issues before they become breakdowns. Most no-heat calls we get during the coldest weeks trace back to something a seasonal tune-up would have caught. A little upkeep goes a long way toward a heating system that runs reliably through a Longmont winter.
Dependable Warmth From One Local Team
Heating your home well comes down to having a team you trust for whatever your system needs, a repair, a new furnace, boiler service, or a modern heat pump. We have built our name in Longmont by diagnosing accurately, installing carefully, handling the combustion and safety side with the seriousness it deserves, and treating every home with respect. The result is steady, reliable warmth rather than recurring headaches when the cold sets in.
The same goes for our neighbors in Mead, Lyons, and Allenspark, who count on us for the full range of heating service. Whatever your heating needs this winter, your local Longmont Heating and Air Pros are ready to help. When you want your home warm and your system handled right, contact us today.
Zip codes we serve: 80501, 80503, 80504, 80542, 80540, 80510
