HVAC Repair in Longmont, CO80501
Arctic Air Heating & Cooling dispatches licensed, insured heating and air conditioning technicians toLongmont and the 80501 ZIP code 24 hours a day, 7 days a week. Target response time in this service zone: 60-90 minutes.
Homeowners across Longmont call us when the system simply will not keep up. Dry air, wide day-to-night swings and high altitude all change how combustion and refrigerant systems behave. That is why we staff a live dispatch line around the clock instead of routing you to a queue.
Talk to a live dispatcher in Longmont
Serving 80501 and Boulder County — no phone trees, no callback waiting.
- 60-90 minutes target response time in this service zone
- Written diagnostic report with photos of what we found
- We repair what can be repaired — no forced replacement upsell
- Workmanship warranty on every job we complete
★★★★★4.8 average · 290 verified reviews
- Licensed & Insured Technicians
- Background-Checked Crews
- Upfront Flat-Rate Pricing
- Same-Day & Next-Day Service
- No Overtime Charges
- All Work Warrantied
The Longmont80501 calls we answer most often
If your system is doing any of the following, it is worth a diagnostic before the fault gets more expensive.
Thermostat reading several degrees off from reality
Musty or burnt smell the first time the system runs
Water pooling around the indoor unit or ceiling stains
Skyrocketing utility bills with no change in usage
Squealing or grinding from the blower assembly
Short cycling — on and off every few minutes
Heating and air conditioning service built around Longmont
Whether the complaint is weak airflow upstairs, a furnace that will not stay lit, or an outdoor unit that hums but never starts, the process is the same — a proper diagnostic, a written price, then the repair.
Homes in Boulder County tend to be a mix of older builds with original ductwork and newer infill construction, which means airflow problems show up very differently from one street to the next.
If your system is over ten years old and you have had two repairs in the last two seasons, a replacement comparison is usually worth running even if the current unit still runs.
Typical Longmont service pricing
| Service | Typical Range |
|---|---|
| Diagnostic / service call | $79 – $158 |
| Capacitor replacement | $189 – $441 |
| Contactor replacement | $200 – $473 |
| Refrigerant leak repair + recharge | $336 – $945 |
| Blower motor replacement | $473 – $998 |
| Compressor replacement | $1,470 – $3,045 |
| Hot surface igniter / flame sensor | $168 – $420 |
| Furnace control board | $399 – $893 |
| Condensate drain / float switch | $137 – $357 |
| Thermostat install (wired or smart) | $158 – $473 |
| Duct cleaning (whole home) | $399 – $945 |
| Full system replacement (installed) | $6,300 – $13,650 |
Market ranges reported for Longmont, CO and the wider Mountain West region. Your flat-rate quote is confirmed on site before any work begins.
Services available in 80501
Residential and light commercial, all major brands, all hours.
Air Conditioning Repair in Longmont
Diagnosis and repair for central air conditioners, heat pumps in cooling mode, ductless mini-splits and packaged rooftop units.
Furnace Repair in Longmont
Gas, propane, oil and electric furnace troubleshooting and repair.
HVAC Installation & Replacement in Longmont
Full system replacement and new construction installs with a Manual J load calculation so the equipment is actually sized for your home.
Heat Pump Repair & Service in Longmont
Heat pump diagnosis and repair for both heating and cooling operation, including cold-climate units, defrost board failures, reversing valve problems, auxiliary heat strip faults and refrigerant charge issues.
24/7 Emergency HVAC Repair in Longmont
Around-the-clock response for no-heat in freezing weather, total AC failure during a heat wave, gas smells, carbon monoxide alarms, water flooding from the indoor unit and complete system shutdowns.
Air Duct Cleaning & Sealing in Longmont
Whole-home duct cleaning and aeroseal-style duct sealing to recover lost airflow, reduce dust and lower the load on your equipment.
HVAC Maintenance & Tune-Up in Longmont
Seasonal precision tune-ups that catch failing components before they strand you.
Commercial HVAC Service in Longmont
Service for light commercial and commercial properties including rooftop packaged units, VRF and VRV systems, split systems, make-up air units and building automation controls.
What happens when you call
No forms, no waiting for a callback window. One phone call starts the whole process.
- Step 1: Call the dispatch lineYou reach a live dispatcher, not a recording. They confirm your address, the symptom you are seeing and how urgent it is.
- Step 2: Get matched to the nearest licensed techDispatch routes your job to the closest available licensed technician who already carries the common parts for your equipment.
- Step 3: On-site diagnosis with a flat quoteThe tech tests the system, shows you what failed and gives you a written flat-rate price before any work starts.
- Step 4: Approved repair, same visit when possibleMost repairs are finished on the first visit. If a part has to be ordered you get a firm return window, not a maybe.
Servicing Longmont and Boulder County
Our 80501 coverage zone centres on Longmont and extends to the surrounding communities listed below. Every technician dispatched into this area is licensed, insured and background-checked, and every job carries a workmanship warranty.
What Longmont homeowners say
“New ductless install, clean work, and they actually did a load calculation instead of just matching the old unit size.”
— Kevin M., verified Longmont customer
“The technician showed me photos of the corroded coil and explained the whole thing without talking down to me.”
— Robert L., verified Longmont customer
Longmont80501 HVAC questions, answered
What brands do you service in Longmont?
All of them. Our 80501 technicians are trained on Goodman, York, Trane, Rheem and essentially every other residential brand sold in Colorado, including discontinued lines. We keep a broad parts catalogue on the trucks for exactly that reason.
Are your technicians licensed and insured?
Every technician dispatched into Longmont is licensed, insured and background-checked. We can provide proof of insurance on request before the visit if you would like it on file.
Is my carbon monoxide risk something I should worry about?
With any combustion appliance, yes. A cracked heat exchanger can spill carbon monoxide into the living space, and it is odourless. We perform combustion analysis and a CO test on every furnace and boiler call in Longmont, and we recommend a working CO alarm on every level of the home regardless of who services your equipment.
Do you service commercial and light commercial properties?
Yes. Around Longmont we handle rooftop packaged units, split systems, VRF/VRV installations and building automation faults for offices, retail, restaurants and multi-tenant buildings, including after-hours scheduling so you are not disrupting trade.
What causes water to leak from the indoor unit?
Almost always a blocked condensate drain line, a failed drain pan float switch, or a frozen coil melting faster than the pan can handle. In Longmont we see algae and dust clogging drain lines constantly during June through August. It is a fast fix but ignoring it ends in ceiling damage.
Should I repair my system or replace it?
The usual rule of thumb: if the repair costs more than half the price of a replacement and the equipment is over ten years old, replacement generally wins. We will run that comparison with you on site and show you the maths — and if the honest answer is a $180 capacitor rather than a $9,000 system, that is the answer you get.
HVAC service near Longmont, CO
We also cover these Colorado communities with the same 24/7 dispatch line.
Need HVAC help in Longmont 80501?
Whatever the make — Goodman, York, Trane or anything else — call (866) 548-3173. Our crews in the 80501 area service all major residential and light commercial brands.
(866) 548-3173Answered 24 hours a day, 365 days a year