Emergency line open 24/7 · Times shown in ET
AC repair in Boulder, CO
Boulder sits in Boulder County and we cover 11 ZIP codes across it. One call routes your cooling fault to an independent local provider.
Your call connects you with an independent local HVAC provider. No obligation.
Call (855) 321-3194How do I get AC repair in Boulder, CO today?
Calling (855) 321-3194 is the fastest route. Give the ZIP code, and the operator connects you with an independent provider working in Boulder. The visit window and the price both come from that provider, not from us.
Cooling calls in Boulder
When cooling stops in Boulder, describing the symptom is more useful than the thermostat reading. A system blowing warm air, a unit that hums but will not start, and a breaker that keeps tripping are three different faults, and the description helps the provider prepare.
Every ZIP code below belongs to Boulder in Boulder County. If yours is missing from the grid, the line can still check it, because provider coverage and our published page set are not the same thing.
Local considerations
Coverage for your specific Boulder address depends on the ZIP code rather than the city name. Providers in Boulder County often serve irregular boundaries that do not follow the city line.
The mid-tier cost bands on this page reflect what completed jobs in markets like Boulder have run to. Boulder County providers set their own prices, and the figure you are quoted governs.
Looking for the other side of the system? Heating Repair in Boulder, CO.
Services
Cooling services in Boulder
Below are the cooling jobs Boulder providers handle most often, from emergency repair through to scheduled replacement and maintenance.
6 services
AC Repair in Boulder
Cooling faults rarely announce themselves in mild weather. The first stretch of real heat surfaces issues that have been accumulating all year.
View ac repair
02 AC Installation and Replacement in Boulder
Replacement decisions usually surface in the middle of cooling season, when a failed compressor turns a repair quote into a replacement conversation.
Details
03 Heat Pump Repair in Boulder
Refrigerant charge, coil condition and the capacitor account for most cooling-mode heat pump calls, in that order of frequency.
Details
04 HVAC Maintenance and Tune-Up in Boulder
Pre-season maintenance finds the marginal components while there is still time to order parts, rather than after the system has stopped and the house is heating up.
Details
05 Thermostat Installation and Repair in Boulder
A control that reads two degrees warmer than the room will run the system past setpoint and leave the house cold without any equipment having failed.
Details
06 Duct Cleaning and Sealing in Boulder
Leaks in attic ductwork pull in unconditioned air during summer and lose conditioned air to the attic, hitting efficiency from both directions simultaneously.
DetailsInteractive
What is your thermostat reading?
Drag the dial to the temperature your thermostat shows now. The readout names the likely cause band, how urgent it is, and which page to read next.
78
Degrees F
- Likely cause band
- Cooling capacity loss: dirty coil, low refrigerant charge from a leak, or a failing capacitor.
- Urgency
- Call today
- Read next
- AC not cooling
What to do while you wait
- Turn the system off and let any ice on the coil or line set melt completely.
- Check the condensate drain and pan for standing water, which can trip a safety switch.
- Swap in a clean filter if the current one is grey or clogged.
- In a heat advisory, prioritise getting vulnerable people somewhere cooler.
Nearby
Nearby cities we cover
Problems we route in Boulder
Summer demand across Boulder County moves in waves, so availability on a given afternoon says little about availability the next morning. The operator gives you the real window rather than an optimistic one.
Emergency
If this is happening right now
Call now
- No cool air during a heat advisory
- No heat with outdoor temperatures below freezing
- Burning smell from the vents
- Water pooling at the air handler
- Ice on the line set
- Breaker tripping on every cycle
Call (855) 321-3194 and give your ZIP code.
Shut it off and call the utility or 911 first
- You smell gas: leave the building, then call the gas utility or 911
- Smoke or sparking at the equipment
- A carbon monoxide alarm is sounding: leave and call 911
Reference: CPSC recalls and US Fire Administration heating fire safety.
Shut it down safely
- Set the thermostat to off so the system stops cycling.
- Kill the breaker at the air handler and at the outdoor condenser.
- If you smell gas, leave the building first, then close the gas shut-off at the furnace only once you are outside and have called the utility or 911.
- Clear the area around the equipment and keep pets and people away from it.
A 24/7 line means the phone is answered around the clock in ET. It does not mean a technician is standing by in every market at every hour.
Same-day and 24/7 emergency services are subject to provider participation, location, technician availability, and demand. Availability is not guaranteed and may vary by market and appointment capacity.
Call (855) 321-3194Questions
Boulder HVAC questions
How many ZIP codes do you cover in Boulder?
We publish 11 Boulder ZIP code areas, each linking back to this page and to the heating page for the city. If your ZIP code is not listed, call the line and the operator checks live whether a provider covers it.
What should I do before the provider arrives?
Set the thermostat to off so the system stops cycling against the fault, clear debris from the outdoor unit, and replace a visibly loaded filter. In extreme heat, move anyone vulnerable to the coolest room in the house.
Can I schedule a maintenance visit through this line?
Yes. Maintenance visits cover coil cleaning, condensate drain clearing, filter replacement and a capacitor check. These are booked as scheduled appointments rather than emergency dispatches, and the provider confirms timing and cost before attending.
What county is Boulder in?
Boulder sits in Boulder County, Colorado. Providers covering Boulder typically also cover neighbouring markets in the same county, which is why Longmont, Broomfield, Arvada appear in the nearby cities list on this page.
Do you handle mini split systems in Boulder?
Yes, where a provider covering your ZIP code services them. Mention the brand and whether it is a single head or a multi-zone system when you call, so the operator matches a provider who works on that equipment.
Written and fact-checked by the HVAC Emergency USA editorial team. Last updated . Editorial policy.