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UniColorado

Currently not accepting new repair/service customers

At this time, UniColorado Heating & Cooling is not accepting new repair or service requests from first-time customers. We are currently prioritizing existing clients and scheduled projects to ensure we maintain our high standard of service. We truly appreciate your interest and encourage you to check back with us in the future, as our availability may change.

Existing customers: (303) 250-1000

Don't be stuck in the heat.

Denver Air Conditioning Repair

UniColorado is not taking on new AC repair clients right now. Repair and service visits are reserved for existing customers, who can call us directly to schedule. This page stays up as a reference: the troubleshooting guides below cover the most common AC failures in Denver homes, and if your system is old enough that repair no longer makes sense, we offer free estimates for replacement.

Existing Customers

Schedule by Phone

Existing UniColorado customers can call us directly to schedule.

Note: We service single-family homes only. No condos, multi-family, or rooftop units.
(303) 250-1000
BBB A+ RatingMitsubishi Diamond ContractorNATE CertifiedHomeAdvisor Top RatedYelp 5-Star Rating
Green Business Colorado
BPI CertifiedGoogle Guaranteed

Denver AC Repair Services

HVAC technician servicing outdoor AC unit in Denver

Denver Air Conditioning Repair

Repair service for central air conditioning units that don't work. Existing customers only.

$180 diagnosticExisting customersOur installs

How It Works

Brands We Install

Carrier Dealer
Mitsubishi Diamond Contractor
Bosch Comfort Platinum
Carrier Dealer
Mitsubishi Diamond Contractor
Bosch Comfort Platinum

Stay Cool with UniColorado

See What Sets Us Apart

For our existing customers, our technicians diagnose and repair all residential AC brands, from failed capacitors and refrigerant leaks to compressor replacements and control board failures. We are not accepting new repair clients at the moment, but replacement estimates are free and open to everyone. Every service call starts with a $180 diagnostic where we identify the problem and present your options with upfront pricing before any work begins. If the repair cost approaches the value of the system, we'll tell you straight and can discuss replacement options. For systems that are running but need a tune-up, see our AC maintenance service.

AC RepairWhat It Costs

Denver AC Repair Costs

We visit your home and diagnose the issue, then walk you through all options upfront. Most repairs run $300 to $1,100 depending on what failed.

Work
Service Call / Trip-Charge
Industry Average
$100 to $350
Our AverageRecommended
$180
Work
Dual Cap Replacement
Industry Average
$400 to $600
Our AverageRecommended
$307 to $445
Work
Compressor Replacement
Industry Average
$1,800 to $4,850+
Our AverageRecommended
$1,300 to $3,200
Work
Anti-Freeze Installation
Industry Average
$300 to $450
Our AverageRecommended
$233

Real peopleReal conversations

Our Homeowners Love Us

Here's what Denver homeowners say about working with UniCo.

5.0
Google Reviews

Cori A.

The only company I will use for my heating and AC needs. Always responsive, on time, polite, and friendly.

Google Review

Mark K.

I was so pleasantly surprised by how amazing my experience was with UniColorado. Thorough, honest, and personable, this company gets it. They’ve earned my business for as long as I live in Denver, and I’d like to thank them again for their great work servicing our outdoor A/C units.

Google Review

Mikayla N.

The second time this company has been out to fix something going on with our HVAC. They've really done a great job correcting issues caused by the original home builder and explaining things in detail. I won't call anyone else for our HVAC needs. 10/10 would recommend!

Google Review

Talon J.

Legitimately the best HVAC company I've ever dealt with. They did super clean work and were super professional the entire time.

Google Review

Colorado's Most Experienced Heat Pump Installer

We service the AC systems we installed. $180 diagnostic fee, waived if you go ahead with the repair. Upfront pricing on every job. Existing customers only.

Mitsubishi hyper-heat install, Colorado 2014
2014

Our first hyper-heat install

Lennox heat pump install 2016
2016

Early Lennox cold-climate adoption

Bosch IDS Ultra heat pump install
2024

Bosch IDS Ultra install

Latest cold-climate heat pump installation 2026
2026

Latest cold-climate tech

30+

Municipalities

Master

Licensed & Certified

12,000+

Installations

AC Certified

Technicians

Quality Install

Guarantee

Up Front Pricing

No hidden fees

$5M+

Saved for homeowners in 2025

$7,000

Average savings

5,000+

Rebate applications submitted

HVAC installation photo
HVAC installation photo
HVAC installation photo
HVAC installation photo
HVAC installation photo
HVAC installation photo
HVAC installation photo
HVAC installation photo

Air Conditioning Diagnostics

Common Air Conditioning Issues (and what to do first)

Before requesting professional help, there are a few things you can try yourself. If your outdoor AC unit isn't turning on, or your AC lines are freezing up, our troubleshooting guides walk you through initial steps. Understanding common AC problems can help you recognize when you need our help.

When to act fast

AC Compressor & Refrigerant Issues

The compressor and refrigerant circuit are the heart of your air conditioning system. Compressor problems tend to escalate quickly, so recognizing the warning signs early can save you from a more expensive repair or a full system replacement.

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Contact UsFree Estimates

Get a Free Estimate

Fill out the form and someone from our team will reach out within 1-2 business days to schedule your free in-home consultation.

Currently not accepting new repair/service customers

At this time, UniColorado Heating & Cooling is not accepting new repair or service requests from first-time customers. We are currently prioritizing existing clients and scheduled projects to ensure we maintain our high standard of service. We truly appreciate your interest and encourage you to check back with us in the future, as our availability may change.

Existing customers: (303) 250-1000

Join 12,000+ Denver homeowners who chose UniColorado

Rather talk? Call (303) 250-1000

AnsweringYour Common Questions

Frequently Asked Questions

Common questions about AC repair in Denver. Can't find what you're looking for? We're a phone call away.