Fast, Reliable Emergency & Commercial HVAC Across Northglenn
When your furnace quits at midnight on a January night or your rooftop unit fails before the morning shift, you need someone who knows Northglenn’s buildings and shows up fast. We’re Fireside Heating & Air Co., and our Emergency & Commercial HVAC crew has handled everything from seized compressors on Melody Drive to emergency heat exchanger replacements in the original Perl-Mack neighborhoods. Most of our Northglenn calls reach you within 45 minutes. Call (866) 561-3358 - a live person answers, 24 hours a day.
Why Fireside Heating & Air Co. Is Northglenn’s Preferred Emergency & Commercial HVAC Company
Northglenn homeowners remember who showed up and who didn’t. We’ve been earning that memory for over 8 years.
Our reputation here is built on showing up when we say we will and fixing it so you don’t call us back for the same problem. The 90-Day Done Right Promise means exactly that: if it’s not right, we make it right, in writing, no paperwork, no arguing. That matters in a city where many of you have lived in the same house since the 1970s and intend to stay.
Phones are answered by a live person, every hour of every day - including 2 a.m. on a Sunday when your heat exchanger cracks and you’re smelling something wrong. No voicemail tree. No “press one for service.” A real person who dispatches a real technician.
Our Northglenn customers tell us the same thing: they want the job done right the first time, backed in writing, by someone who treats their home like their mother’s. That’s the standard we hold. Background-checked, uniformed journeymen who put on shoe covers without being asked. The price quoted is the price paid. Full stop.
Our Emergency & Commercial HVAC Services in Northglenn
24/7 Emergency HVAC
Northglenn’s Chinook winds can swing temperatures 40 degrees in hours, and your system feels that stress before you do. Compressor burnout, failed contactors, cracked heat exchangers - we’ve seen them all at 2 a.m. and at 2 p.m. Our emergency crew carries the parts to fix nine major brands on the first visit, because a second trip costs you time we don’t think you should spend. Live dispatch, 24/7, including holidays.

Commercial HVAC
Northglenn’s commercial corridor along 120th Avenue and the older shop spaces near Washington Street have their own character - and their own HVAC headaches. Many of these buildings went up in the same 1959-to-1975 boom as the houses, with equipment that has been patched and patched again. We size replacement systems properly for Colorado’s altitude, handle permit coordination with the city, and work around your operating hours so you’re not losing revenue while we work.

Rooftop Unit Service & Replacement
We recently serviced a commercial property on Melody Drive where a 50-year-old rooftop unit with a seized compressor and a failed reversing valve needed emergency replacement. Our crew coordinated a crane lift and installed a 10-ton Carrier WeatherMaker unit, running new copper lines and a dedicated PVC combustion-air vent to bypass the cramped original chase. Rooftop units in Northglenn take a beating from Front Range wind and UV exposure. We service Rheem, York, and Daikin commercial lines, and we stock common parts to minimize downtime.

Chiller Service
Chillers serving Northglenn’s larger commercial and light industrial spaces face the same altitude and temperature-swing challenges as every other system here, but with higher stakes when they fail. We handle leak detection, compressor rebuilds, and full replacements with the same upfront pricing and single-visit completion rate that defines our residential work.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Northglenn
We’re trained to service all nine major residential and commercial brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For our Northglenn customers, that means we stock common parts locally - capacitors, contactors, ignitors, blower motors - so we’re not ordering and waiting while your building goes without heat or cooling. When a York rooftop unit fails on a Friday evening or a Daikin mini-split throws a code in a Perl-Mack-era ranch, we’ve got the components and the know-how to fix it that day.
Common Emergency & Commercial HVAC Problems We See in Northglenn Homes
- Compressor burnout from rapid Chinook cycling. Those 40°F temperature swings in a single afternoon force your system to switch between heating and cooling modes repeatedly. Contactors weld shut. Starting capacitors fail. We’ve replaced more compressors in Northglenn’s spring and fall than in cities with steadier weather.
- Heat exchanger cracks on original 1960s furnaces. Altitude derating was frequently skipped on older Northglenn installations, leaving heat exchangers to run hotter than designed for 5,400 feet. The result is thermal stress, carbon monoxide risk, and a furnace that needs immediate shutdown. We check this on every service call.
- Reversing valve failures on heat pumps with undersized ductwork. Perl-Mack homes were built with ductwork sized for the heating loads of 1960s equipment, not modern heat pumps. Restricted airflow causes ice buildup, refrigerant floodback, and eventually a stuck reversing valve. We diagnose the whole system, not just the failed part.
- Furnace closet too small for modern replacement units. Those original gravity-style closets can’t accommodate a 96% AFUE two-stage furnace with PVC intake and exhaust. We’ve relocated cabinets into adjacent spaces and run combustion air through exterior walls - the kind of carpentry-HVAC hybrid job that comes standard with Northglenn’s housing stock.
Heating and Cooling in Northglenn, Done Right
Denver Metro winters start sharp and summers climb fast. Your furnace works hard at altitude, and that first heat wave tests every builder-grade AC that came with the tract house. Fireside keeps Northglenn homes steady through both, with journeymen who size the fix honestly, tape the boot seams, and leave the thermostat where they found it.
We named this company for the warmest word in the American memory because that’s the feeling we deliver, backed by our 90-Day Done Right Promise in writing. we coordinate through our Denver Metro service area Same-day service when the season turns. Ask about our $89 seasonal tune-up.
Heating & Cooling in Northglenn
Colorado’s altitude swings and dry winters punish furnaces hard, then the first June heat wave tests every AC that sat idle for eight months. We see it every season: builder-grade units in tract housing aging past their design life, coils clogged from cottonwood season, no-heat calls at 2 a.m. when the temperature drops forty degrees overnight. Our techs are licensed, insured journeymen who give you honest math on repair versus replace, put on shoe covers without being asked, and leave the price where you can read it. we coordinate through our Denver Metro service area
Ask about our $89 seasonal tune-up. Catch the problem before the cold front does.
Heating & Cooling in Northglenn
Colorado’s altitude swings and dry winters punish furnaces hard, then the first June heat wave tests every AC that sat idle for eight months. We see it every season: builder-grade units in tract housing aging past their design life, coils clogged from cottonwood season, no-heat calls at 2 a.m. when the temperature drops forty degrees overnight. Our techs are licensed, insured journeymen who give you honest math on repair versus replace, put on shoe covers without being asked, and leave the price where you can read it. we coordinate through our Denver Metro service area
Ask about our $89 seasonal tune-up. Catch the problem before the cold front does.
Pricing for Emergency & Commercial HVAC in Northglenn, CO
Here’s what you can expect to pay for Emergency & Commercial HVAC in Northglenn:
| Service | Typical Range in Northglenn |
|---|---|
| Emergency furnace repair (after-hours) | $200-$850 |
| Emergency AC/heat pump repair (after-hours) | $200-$750 |
| Commercial rooftop unit repair | $350-$1,200 |
| Rooftop unit replacement (5-10 ton) | $6,500-$14,000 |
| Chiller repair (commercial) | $500-$2,500 |
| Annual maintenance contract (commercial) | $450-$1,100/year |
What moves you within these ranges? Access matters - a rooftop unit needing a crane lift adds cost. So does after-hours dispatch, though we never charge simply because it’s Sunday. The condition of existing electrical and ductwork matters too; 1960s Perl-Mack homes often need more prep than newer construction. We quote upfront, in writing, before any work starts. No fine print. Call (866) 561-3358 for a free estimate - we’ll give you the exact number for your specific building.
We Also Serve Cities Near Northglenn
Our service radius covers the full north-metro corridor. We regularly run calls to Thornton, Westminster, Commerce City, and Broomfield - often multiple in a single day. If you’re in one of these communities and found us through a Northglenn search, we serve you with the same 90-Day Done Right Promise and live-answer dispatch. Just mention where you’re located when you call.
Serving Northglenn, CO - Our Local Coverage Area
We’re based in the Northglenn area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Emergency & Commercial HVAC in Northglenn
Yes. Our emergency crew services commercial buildings, retail spaces, and light industrial properties across Northglenn’s 80241 ZIP code and surrounding areas, with live dispatch 24/7. We carry parts for Rheem, York, and Daikin commercial lines and can typically reach your property within 45 minutes during peak hours. Call (866) 561-3358 - a live person answers, even at 2 a.m.
The original Perl-Mack furnace closets were sized for 1960s gravity-style units, which are significantly smaller than modern 96% AFUE two-stage furnaces with PVC combustion-air and exhaust piping. Installing new equipment often requires relocating the cabinet or modifying an exterior wall for venting, turning a standard replacement into a half-day carpentry job before the HVAC work begins. We’ve done this hundreds of times in Northglenn’s ranch and split-level neighborhoods and know which wall modifications work and which don’t.
Northglenn’s rapid Chinook temperature swings - sometimes 40°F in a few hours - force commercial rooftop units and heat pumps to cycle between heating and cooling modes repeatedly. This overwhelms contactors, stresses starting capacitors, and accelerates wear on compressors and reversing valves. We see more compressor failures in Northglenn’s spring and fall shoulder seasons than in cities with steadier weather patterns, and we design maintenance schedules accordingly.
We service and stock parts for Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard - all nine major brands. For commercial customers in Northglenn, we most commonly work on Rheem, York, and Daikin rooftop units and split systems, with local parts inventory to minimize downtime. Call (866) 561-3358 with your model number and we’ll confirm parts availability before we dispatch.
Yes. Our commercial maintenance agreements cover two seasonal tune-ups per year, priority scheduling, and discounted repair rates. For Northglenn’s older commercial buildings with original 1960s and 1970s equipment, we recommend quarterly inspections given the added stress of altitude operation and Chinook cycling. Contracts start at $450 annually for single rooftop units. Call (866) 561-3358 for a custom quote based on your equipment count and building size.
Written by Glen Hartman, Owner at Fireside Heating & Air Co., serving Northglenn and the north-metro Colorado corridor since 2018.