We provide 24/7 emergency HVAC services for residential and commercial properties
24/7 Emergency HVAC Repair In Longmont, Colorado
At Longmont Heating and Air Pros, we provide fast and reliable emergency HVAC repair services for homes and businesses throughout Longmont. Whether your air conditioner stops working in extreme heat or your heating system fails unexpectedly, our expert technicians are available 24/7 to restore your comfort quickly and efficiently. We diagnose and fix all HVAC issues, ensuring your system runs smoothly when you need it most.
Emergency HVAC Repair in Longmont, Colorado
We are your local Longmont Heating and Air Pros, and we know that heating and cooling never seem to fail at a convenient hour. It is always the coldest night of January or the hottest stretch of July, usually after everyone else has closed for the day. When your furnace quits or your air conditioner gives out and the house starts heading the wrong direction fast, you do not need a runaround. You need someone close who answers the phone and gets moving.
That is exactly what we do. We are the trusted local emergency HVAC repair experts in Longmont, and we have spent years responding to no-heat and no-cool calls across this city and the surrounding towns. We know how quickly a Front Range home loses warmth when the wind comes off the foothills, and how fast an upstairs bedroom turns unbearable on a summer afternoon. We show up ready to diagnose the problem on the spot and get your system back up.
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 only a call away when it matters most.
Our Emergency HVAC Repair in Longmont, Colorado
Emergency HVAC Repair
When a system fails in the middle of a hard Longmont freeze or a blazing summer afternoon, every hour counts. A home without heat in deep cold is not just uncomfortable, it can put pipes and family members at real risk, and a home without cooling during a heat wave gets dangerous quickly for young children and older folks. That is why emergency HVAC repair exists, to close the gap between the moment your system quits and the moment your home is safe and comfortable again. We treat these calls as the priority they are.
Common Problems We Fix
- The furnace dies completely on the coldest night of the year
- The air conditioning quits in the middle of a brutal heat wave
- A burning smell or smoke coming from the equipment
- A complete loss of heat with young children or older family at home
- Water leaking fast enough to threaten floors or ceilings
- A boiler tripping its safety lockout over and over
- Loud banging or a sudden shutdown that leaves the house unsafe
- A frozen or failed system right as a cold front rolls in
- The thermostat going dark with no response from the system
When we arrive, our first job is making your home safe, then restoring your comfort as fast as we responsibly can. We diagnose the actual failure rather than guessing, checking the electrical side, the controls, the fuel supply, and the mechanical components in a logical order until we find the root cause. Because we know Longmont homes and the systems inside them, we usually pinpoint the issue quickly. We carry common parts so many repairs happen in a single visit, and we are straight with you about what went wrong and what it takes to set it right for the long haul, not just to get through the night.
24/7 Emergency Service
Heating and cooling do not keep business hours, so neither does our emergency line. A furnace that fails at two in the morning during a Longmont cold snap cannot wait until Monday, and we do not ask you to. Round-the-clock availability means that whenever your system goes down, whether it is a holiday weekend, the middle of the night, or the start of a snowstorm, there is a real local team ready to respond. That kind of dependability is the whole point of calling someone who actually lives and works in the area.
When Homeowners Call Us After Hours
- No heat overnight with temperatures dropping well below freezing
- An air conditioner that died during an overnight heat wave
- A strange odor or burning smell that cannot wait until morning
- A system that shut down suddenly and will not restart
- A boiler losing pressure with pipes at risk of freezing
- Repeated breaker trips whenever the system tries to run
- A failure right before a holiday with family in the house
- Water pooling around the furnace or air handler
- A unit cycling on and off and never holding temperature
When you call after hours, we gather the right information first, what the system is doing, whether you still have any heat or cooling, and whether there is any safety concern, so we arrive prepared. We respond as quickly as conditions allow, and for our neighbors in Lyons and Allenspark the timing naturally accounts for the drive up the canyon and into the high country. Once on site, we work through the problem methodically, keep you informed, and confirm the system is running safely before we leave. Restoring steady, dependable performance is always the goal, not a quick patch that fails again the next cold night.
Reach out to us for assistance.


Same-Day HVAC Service Available
Trusted Heating & Air Conditioning Pros Ready to Help
Why Longmont Homeowners Choose Longmont Heating and Air Pros
We Are Genuinely Local and Close By
We are not a regional outfit routing calls from somewhere down I-25. We live and work right here, which means when you have an emergency in Longmont, we are rarely far from your door. That proximity matters most when the clock is running and your house is getting colder by the hour. We know the neighborhoods, from Old Town to the newer builds on the east side, and we know the roads out to Mead, Lyons, and Allenspark, so we are not fumbling with a map while you wait. Local is not a slogan for us, it is the reason we can respond fast.
Root-Cause Diagnostics Under Pressure
An emergency is exactly when it is tempting to slap in a part and hope, and exactly when that approach burns you. We diagnose to the root cause even when the pressure is on, because a repair that does not hold means another freezing night and another call. When a homeowner near Southmoor Park called us with a furnace that kept locking out, the fast fix would have been a new igniter. Instead we traced it to a restricted flue, corrected the real problem, and it has run clean ever since. That discipline is what makes our emergency work actually solve the problem.
Honest Answers When You Are Stressed
A system failure is stressful, and stress is when people most need a straight answer they can trust. We will tell you plainly what failed, what it takes to fix it, and whether you are looking at a simple repair or a bigger decision about the equipment. We are not going to use a bad night to push you toward something you do not need. Homeowners across Longmont remember that kind of honesty, and it is a big part of why so many of our calls come from neighbors who were referred by someone down the street.
Respect for Your Home, Even at 2 a.m.
An emergency visit is still a visit to your home, and we treat it that way no matter the hour. We lay down protection, wear shoe covers, and clean up before we leave, so even a middle-of-the-night repair does not leave a mess behind. We work efficiently and quietly so the rest of the household can rest while we get your heat or cooling back. That care is the same whether it is a planned installation or an urgent call in the dark, and people notice the difference.
Experience Across Every System Type
Emergencies do not pick and choose, so we are ready for all of it, furnaces, air conditioners, boilers, and ductless mini splits alike. The established homes around Longmont often run hydronic heat, the newer ones lean on high-efficiency furnaces, and plenty of additions and basements rely on ductless systems. Up in Allenspark, propane heat in deep cold is its own challenge. Having worked on all of these across the area means that whatever has failed in your home, we have very likely seen it before and know how to bring it back.
Our Service Process
1. You Reach Out and We Listen
When you call, we ask the right questions right away, what the system is doing, whether you have any heat or cooling at all, and whether there is anything that signals a safety concern. In an emergency, that quick conversation shapes how fast we move and what we bring, and it often tells us a great deal about the problem before we even reach your Longmont home.
2. We Respond and Diagnose on the Spot
We head your way as quickly as conditions allow and arrive ready to work, not just to look. Our technician inspects the system methodically, tests the components, and finds the actual root of the failure rather than chasing the first symptom. You get a clear explanation in plain language, so you understand what happened and why.
3. We Make It Safe, Then Fix It Right
Safety comes first, always. Once the home is secure, we get to work with the proper parts and methods, carrying common components so many emergency repairs are finished in a single visit. Whether it is a quick fix or something larger, we do it to last through the rest of the season, not just to get you to morning.
4. We Confirm Everything Works Before We Go
Before we leave, we test the system thoroughly, confirm it is heating or cooling steadily, and make sure it is running safely. Then we clean up after ourselves. You are left with a home that is comfortable again and a system you can trust through the next stretch of hard weather.
Service Area in and Around Longmont, Colorado
Longmont is home base for our emergency work, and we cover the entire city, from Old Town and the streets near downtown to Spring Gulch, Southmoor Park, the Prospect neighborhood, and the growing subdivisions on the east side. Wherever you are inside the city, we are close enough to respond quickly when your heating or cooling fails.
We also respond throughout the surrounding communities that share our corner of Colorado. Up in Mead, the fast-growing family town to the northeast, we handle urgent furnace and cooling failures across its newer neighborhoods. Out in Lyons, the foothills town where the St. Vrain Creeks meet, the canyon weather can turn an outage into a real problem, and we know that drive well. And higher up in Allenspark, the mountain village near Rocky Mountain National Park where winters run long and cold, dependable emergency heat is essential, and we are there for the homeowners who need a team that understands high-country systems. No matter which of these you call home, you get the same fast, careful emergency response.
Reach out to us for assistance.
Professional Emergency HVAC Repair vs DIY Attempts
When the heat goes out on a frigid night, the urge to fix it yourself is understandable. But emergency repairs are exactly the situations where a DIY attempt tends to make things worse, because the pressure is high, the visibility is poor, and the systems involved are genuinely hazardous. Modern HVAC equipment combines electrical components, refrigerant under pressure, gas connections, and tightly tuned safety controls, and a mistake with any one of those in the middle of the night can turn a bad situation into a dangerous one. We have been called to plenty of Longmont homes where a rushed repair attempt left the problem larger and more expensive than it started.
Gas is the clearest example of why this is not a do-it-yourself moment. A furnace or boiler that is misbehaving can involve combustion issues you are not equipped to assess safely in the dark. 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 not a step to skip or second-guess. The same caution applies to refrigerant in air conditioners and heat pumps, which takes proper tools and training to handle without damaging the compressor, the single most expensive part of the system.
There is also the matter of diagnosis under stress. A furnace that will not run could trace back to a dozen different causes, and swapping parts one at a time while the house grows colder is a losing game. Our technicians read the whole system 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 the outdoor unit clear is genuinely yours to handle, but when a system fails in an emergency, leaning on a professional protects your home, your equipment, and your family.
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
What counts as an HVAC emergency?
If your safety or your home is at risk, or you have lost heating or cooling in dangerous weather, that is an emergency. A furnace dying on the coldest night of a Longmont winter with kids or older family in the house qualifies, as does an air conditioner failing during a serious heat wave. Burning smells, smoke, water leaking fast enough to threaten floors, or a boiler locking out repeatedly all warrant urgent attention. Gas is its own category. 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. For the rest, our emergency line is there when waiting is not an option.
How fast can you get to me in an emergency?
Because we are based right here and work in the area every day, we are rarely far from your door, and we treat true no-heat and no-cool calls in Longmont as the priority they are. We respond as quickly as we safely can and come prepared to diagnose and repair on the spot rather than just looking and scheduling a return trip. For neighbors out in Mead, Lyons, and Allenspark, timing accounts for the drive, but we plan our response so you are not left waiting in the cold any longer than necessary.
Do you really answer calls in the middle of the night?
Yes. Our emergency service runs around the clock because heating and cooling failures do not wait for business hours. A furnace that quits at two in the morning during a hard freeze is exactly the kind of call we are set up to take. Whenever your system goes down, day or night, holiday or weekend, there is a real local team ready to respond rather than a recording telling you to call back later.
What should I do while I wait for the technician?
If you have lost heat in deep cold, keep the home closed up to hold warmth, open cabinet doors under sinks on exterior walls to protect pipes, and use safe supplemental heat like an electric space heater, never anything that burns fuel indoors. If you have lost cooling in extreme heat, close the blinds, stay hydrated, and move to the coolest part of the house. If you smell burning or see smoke, shut the system off at the thermostat and breaker. And if gas is involved, get out and call 911 first, then reach out to us.
Is it cheaper to wait until morning to call?
Sometimes waiting is genuinely fine, and sometimes it costs you far more. A minor issue with a backup heat source available can often wait. But a furnace down in subzero cold risks frozen and burst pipes, which is a much larger problem than the original repair. When you call, we help you understand whether your situation can safely wait or needs attention now. We would rather give you honest guidance than have you face a worse outcome by morning.
Can a frozen pipe situation really happen that fast in Longmont?
It can, especially overnight when temperatures drop hard and a home loses its heat source. Pipes along exterior walls and in unheated spaces are the most vulnerable. The colder it is outside and the longer the heat is off, the higher the risk. This is a big part of why we treat winter no-heat calls so urgently. Restoring heat quickly is often about protecting the house itself, not just keeping everyone comfortable until morning.
My system shut off and will not turn back on. What now?
First, check the obvious, that the thermostat has power and is set correctly, and that the breaker has not tripped. If a tripped breaker keeps tripping when you reset it, stop and leave it off, because that points to an electrical fault that needs a professional. A system that shuts down and refuses to restart can stem from a safety lockout, a failed component, or a control issue. Rather than force it, reach out and we will diagnose why it shut down in the first place so the fix actually holds.
Do you handle emergency boiler failures too?
We do. Plenty of established homes around Longmont run on boilers with radiant or baseboard heat, and a boiler going down in winter is an emergency we take seriously because of the freeze risk involved. We respond to lockouts, pressure failures, leaks, and circulation problems, working through the system to find the root cause and get your hydronic heat running safely again before the cold causes further trouble.
Is there an emergency HVAC company near me in Longmont and nearby towns?
You are looking at it. We are based right here and respond throughout Longmont along with Mead, Lyons, and Allenspark. Being local means faster emergency response, real familiarity with the homes and systems in each community, and a team your neighbors already know and trust. When something fails at the worst possible time, having genuinely local pros nearby makes all the difference.
Will an emergency repair fix the problem for good or just get me through the night?
Our aim is always a lasting fix, not a patch. We carry common parts so many emergency repairs are completed properly in one visit. If a full resolution requires a part we need to source, we will stabilize your system safely, explain exactly what is needed, and get it done promptly. We do not believe in quick fixes that fail again the next cold night, because that is not how you earn a reputation in a community like ours.
What types of systems do you service in an emergency?
All of the common ones, gas and electric furnaces, central air conditioners, boilers with radiant or baseboard heat, and ductless mini split systems. Across Longmont and the surrounding towns we see the full range, from high-efficiency furnaces in newer builds to hydronic systems in older homes and propane heat up in the high country. Whatever has failed, there is a strong chance we have worked on it before and know how to bring it back safely.
When Your Heating or Cooling Fails, We Are Ready
A system failure is stressful, but who you call should not be. We have built our name in Longmont by responding fast, diagnosing honestly, and fixing the real problem so you are not calling again the next bad night. When the furnace quits in a January freeze or the air conditioning gives out in a July heat wave, your local Longmont Heating and Air Pros are ready around the clock, prepared to make your home safe and comfortable again.
The same goes for our neighbors in Mead, Lyons, and Allenspark, who count on us for the same urgent, careful service. Whatever your system and whatever the hour, we bring real local knowledge and a steady hand to every emergency call. When you need help now, contact us today.
Zip codes we serve: 80501, 80503, 80504, 80542, 80540, 80510

