Honest, 24/7 emergency service from Boulder’s highest-rated HVAC techs.
When your heating or cooling system fails in the middle of a Colorado cold snap or a record-breaking summer day, you don’t have the luxury of waiting until Monday morning. At Ascent HVAC and Home Solutions, we provide 24/7 emergency HVAC repair in Boulder, CO, delivering commercial-grade speed and precision to your residential doorstep. We treat your home’s climate crisis with the urgency it deserves, ensuring your family stays safe and comfortable regardless of the weather outside.
Boulder’s geography creates extreme conditions that can push HVAC systems to their breaking point. Whether you are facing a furnace lockout on a sub-zero night near Chautauqua Park or an AC failure during a July heatwave in Mapleton Hill, our local response teams are just minutes away. We bridge the gap between industrial-strength mechanical expertise and residential care, fixing your system right the first time so you can get back to enjoying life in the shadow of the Flatirons.
When to Call for Emergency HVAC Service
Not every HVAC issue is an emergency, but in Boulder’s volatile climate, certain situations require immediate intervention to protect your property and health:
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No Heat in Freezing Temperatures: If your furnace fails when the mercury drops, your home can reach dangerous temperatures quickly, and your plumbing is at risk of freezing.
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Total Cooling Failure During Heatwaves: For seniors, infants, or those with medical conditions, a lack of AC during a 90°F+ day is a significant health risk.
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Carbon Monoxide Alarms: If your CO detector sounds, evacuate immediately, call 911, and then call us to inspect your furnace for heat exchanger cracks.
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The Smell of Gas or Burning: “Rotten egg” odors or electrical burning smells are high-priority hazards that require an immediate system shutdown and professional inspection.
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Severe System Leaks: If your AC is leaking large amounts of water or refrigerant, it can cause structural damage to your basement or utility closet.
The Boulder Factor: High-Altitude Emergency Expertise

Boulder’s elevation of 5,430 feet presents mechanical challenges that standard HVAC companies often overlook. During an emergency, these nuances become critical.
Altitude-Adjusted Combustion
Boulder is famous for powerful downslope winds that can reach hurricane speeds. These winds can blow out pilot lights on older units or force mountain debris into outdoor condensers, causing immediate system failure. We perform repairs that account for these environmental stressors, reinforcing your system against future gusts.
Responding to Chinook Wind Damage
Boulder is famous for powerful downslope winds that can reach hurricane speeds. These winds can blow out pilot lights on older units or force mountain debris into outdoor condensers, causing immediate system failure. We perform repairs that account for these environmental stressors, reinforcing your system against future gusts.
Strict Code Compliance
Even in an emergency, Boulder’s building and safety codes must be respected. We ensure that every emergency repair meets the City of Boulder’s rigorous standards, protecting your home’s value and your family’s safety.
Schedule Your Home Service Today
Get fast, reliable solutions for HVAC, electrical, plumbing, water heaters, and home improvements—backed by our 1-year labor warranty and expert care.
Why Trust Ascent HVAC and Home Solutions?
We apply the same “no-fail” mentality to your home that we use for our commercial and multifamily clients. When you call us in a crisis, you get:
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Fixed-Price Transparency: We provide a clear, upfront quote before we begin the repair. You’ll never face “emergency surge pricing” or hidden hourly fees.
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Fully Stocked Response Units: Our trucks are mobile warehouses, carrying parts for major brands like Lennox, Carrier, Trane, and Mitsubishi. We aim to complete every repair on the first visit.
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1-Year Labor Warranty: Even our 2:00 AM repairs are backed by our 1-year labor guarantee. If the fix doesn’t hold, we’ll return and make it right at no cost to you.
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Priority Dispatching: Our dispatch team is local to the North Denver Metro. We know the shortcuts to Table Mesa, Gunbarrel, and North Boulder to get to you faster.
Our Emergency Repair Process
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Immediate Contact: Call (303) 414-1127. You’ll be connected with a specialist who understands the urgency of your situation.
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Safety First Guidance: We will provide immediate steps to keep your home safe (such as shutting off gas valves or electrical breakers) while our technician is en route.
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Industrial-Strength Diagnostics: We use thermal imaging and high-precision sensors to find the root cause of the failure in minutes.
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Transparent Quote: You receive a budget-conscious, fixed-price solution.
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Restoration and Safety Check: We don’t just fix the part; we perform a safety sweep of your entire system to ensure no other components were stressed by the failure.
Frequently Asked Questions (FAQs)
Because we are local to the NW Denver Metro, we aim to have a technician at your Boulder doorstep within 60 to 90 minutes for true emergencies.
We have a standard emergency diagnostic fee for after-hours and weekend calls. However, all repair labor and parts are quoted at our transparent, fixed-price rates.
Yes. Our commercial background gives us the depth of knowledge to work on everything from brand-new high-efficiency heat pumps to 30-year-old gas furnaces found near University Hill.
If we find a dangerous issue, like a cracked heat exchanger, we will walk you through your options. We offer fast-track replacement services and flexible financing through GreenSky to help you get a new system installed immediately.
If your system is acting up but hasn’t failed yet, our $149 Fixed-Price Inspection is the best way to catch a problem before it becomes a midnight emergency.
Promotions and Benefits for HVAC Installations in Boulder
Take advantage of our current promotions to enhance your Boulder home comfort:
- Free estimates for all installation projects.
- Financing through GreenSky for accessible upgrades.
- Seasonal specials on energy-efficient systems.
Our approach saves money by extending existing systems when possible. Book your service today!
Call for Immediate Emergency HVAC Help
Don’t spend another minute in a freezing or sweltering home. Trust the team that brings commercial-grade speed and Boulder-specific expertise to your emergency. Ascent HVAC and Home Solutions is standing by 24/7 to restore your comfort.
We are ready to help right now!
Call:
(303) 414-1127
Email:
service@ascentmfs.com











