
AC Repair · Denver Metro
AC Repair
Warm air, a unit that will not start or iced-up lines. We find the cause and quote the fix first.
Get a quote for ac repair
The online form isn't set up yet. The fastest way to reach us is by phone.
Call (303) 555-0167Signs your air conditioner needs a repair
The obvious sign is a house that keeps getting warmer while the thermostat calls for cooling. Other signs show up earlier. The outdoor unit hums but the fan does not spin. The system starts and stops every few minutes. Ice forms on the copper lines or the indoor coil. Water collects around the furnace, where the cooling coil drains. A burning smell, a loud bang at startup or a breaker that keeps tripping means you should turn the system off at the thermostat and call.
Check these first
A few causes are simple enough to rule out yourself before you book a visit.
- Make sure the thermostat is set to cool and the set point is below the room temperature. Replace its batteries if it has them.
- Check the breakers for the outdoor unit and the furnace, and the disconnect switch beside the outdoor unit.
- Look at the air filter. A clogged filter starves the indoor coil of air and can make it freeze.
- Clear leaves, grass clippings and cottonwood fluff from around the outdoor unit.
If the coil has iced over, switch the system off or to fan only and let the ice melt before you run it again.
The usual causes
Most no-cooling calls come down to a short list of parts. Capacitors help the compressor and fan motor start, and they wear out with heat and age. Contactors are switches that burn and pit over time. Fan motors fail. Condensate drain lines clog and trip a safety switch that shuts the system down. Hail-bent fins and a coil caked with dirt both cut airflow and make the system work harder for less cooling. A low refrigerant charge is less common than people think, and when it happens, it means there is a leak.
Refrigerant leaks, handled properly
Refrigerant does not get used up. If the charge is low, it has escaped somewhere. Topping it off without finding the leak only buys time, and the refrigerant cost adds up with every visit. We look for the leak first, with an electronic detector, bubble solution or a pressure test, and then tell you whether it can be repaired. Older systems that use R-22 are expensive to recharge because that refrigerant is no longer produced. Systems that use R-410A can still be serviced, but supply is shrinking under the federal phase-down, so a large leak on an older R-410A unit is often the point where replacement deserves a look. Our technicians hold the EPA certification required to handle refrigerant.
Repair or replace
A part repair on a system under about ten years old is almost always worth doing. When a unit is past 12 to 15 years, has a major failure such as a compressor or a leaking coil, or still runs on R-22, we price the repair and a replacement side by side. You decide.
Areas served
AC Repair across Denver Metro
What you get
What's included
Full diagnosis
We test the electrical parts, airflow and refrigerant before we name a cause.
Leak search before recharge
We find where refrigerant is escaping instead of just topping it off.
Common parts on the truck
Capacitors, contactors and fan motors on board for most first-visit repairs.
Coil and drain check
We look at the outdoor coil, the indoor coil and the condensate drain.
Written quote
Price confirmed before any work beyond the first diagnosis.
Pricing
AC Repair cost guide
| Job | Typical range | Notes |
|---|---|---|
| Diagnostic visit | $90–$180 | Often credited toward the repair |
| Capacitor or contactor replacement | $150–$450 | A common no-cooling repair |
| Condenser fan motor | $400–$900 | Depends on the motor and the unit |
| Refrigerant leak search and repair | $300–$1,500 | Depends on where the leak is and the refrigerant type |
| Evaporator coil replacement | $1,500–$3,500 | Compared with replacement before we start |
Get a price for ac repair
Tell us what's going on. A Mesabrook Heating & Air technician will call you back.
- Work guaranteed for 12 months
- Financing available on larger jobs
- Fully insured
Prefer to talk? (303) 555-0167
The online form isn't set up yet. The fastest way to reach us is by phone.
Call (303) 555-0167Why choose us
Why Denver Metro calls Mesabrook Heating & Air
Upfront prices
You approve the price before we start
Same-day service
Most calls booked the day you call
Licensed and insured
License number on every invoice
No subcontractors
Our own technicians on every job
5 out of 5 stars
Hail flattened a lot of the fins on our outdoor unit and the AC was struggling. They combed out what they could, cleaned the coil and told us honestly the unit still had a few good years in it.
Rosa G., Aurora · Google
Sample review
5 out of 5 stars
Our AC quit on a 95 degree afternoon. The tech found a failed capacitor, showed me the bulged top on the old one and had it cooling again in about forty minutes. The price matched what the office quoted on the phone.
Jenna M., Lakewood · Google
Sample review
4 out of 5 stars
Booked a fall tune-up. The tech found a cracked condensate line on the furnace and a filter slot that let air go around the filter. Fixed both. They had to move my appointment once, but they called a day ahead.
Kevin S., Thornton · Google
Sample review

The process
How it works
Call or book online
Tell us what the system is doing and when it started.
We find the cause
A technician tests the system indoors and out.
You approve the price
We quote the repair, and a replacement if it is close, before we begin.
We fix it and test it
We repair, check the cooling output and tidy up.
Need ac repair today?
FAQ
AC Repair questions
Why is my AC running but not cooling the house?
A clogged filter, a dirty outdoor coil, a failed capacitor or fan motor, a frozen indoor coil or a refrigerant leak are the usual causes. Check the filter and the breakers first. If the lines or coil are iced, turn the system off and let it thaw, then call us.
Can you just add refrigerant?
We can, but it rarely fixes the problem for long. Air conditioners do not use up refrigerant, so a low charge means a leak. We find the leak first and tell you whether repairing it makes sense for your system.