Explore Services

Explore Services

Find a window air conditioner repair professional in your area

Window air conditioner repair professionals near Denver, CO

Top pros for your project

These pros consistently receive high praise in customer reviews.These popular pros are highly sought after for their quality and expertise.These pros recognize that your time is important, and are the fastest to respond to requests.These highly recommended pros are experts, ready to help with your project.

These pros consistently receive high praise in customer reviews.These popular pros are highly sought after for their quality and expertise.These pros recognize that your time is important, and are the fastest to respond to requests.These highly recommended pros are experts, ready to help with your project.

D.M. HVAC Specialist

D.M. HVAC Specialist

New on Thumbtack

New on Thumbtack

Serves Denver, CO

Why this pro? This pro handles window, wall, and portable AC repair and maintenance, central air repairs, and thermostat installation and repair. They're based in Denver, CO, and provide repairs, preventive maintenance, and thermostat installs for both room-sized units and whole-home systems. They also work on portable units, through-wall systems, and central systems.

Why this pro? This pro handles window, wall, and portable AC repair and maintenance, central air repairs, and thermostat installation and repair. They're based in Denver, CO, and provide repairs, preventive maintenance, and thermostat installs for both room-sized units and whole-home systems. They also work on portable units, through-wall systems, and central systems.

5.0

(4)

5.0

(4)

5 hires on Thumbtack
Serves Denver, CO

Iva V. says, "Had great experience for servicing our heater and replacing a part! Jason called right away to schedule, worked quickly and with great standard of quality, explaining everything along the way. I would highly recommend!"See more

Iva V. says, "Had great experience for servicing our heater and replacing a part! Jason called right away to schedule, worked quickly and with great standard of quality, explaining everything along the way. I would highly recommend!"

One Call Home Services

One Call Home Services

Excellent 4.9

(132)

Excellent 4.9

(132)

Online now

505 hires on Thumbtack
Serves Denver, CO

Why this pro? This pro provides heating system and central air conditioning repairs and maintenance, along with plumbing pipe repairs; they've been in business for 3 years. They hold a license in Colorado (ask if they have the right license for your project.) and serve Brighton, CO. Customers describe them as friendly, punctual, clean, and professional.

Why this pro? This pro provides heating system and central air conditioning repairs and maintenance, along with plumbing pipe repairs; they've been in business for 3 years. They hold a license in Colorado (ask if they have the right license for your project.) and serve Brighton, CO. Customers describe them as friendly, punctual, clean, and professional.

Russell Comfort Solutions

Russell Comfort Solutions

Exceptional 5.0

(24)

Exceptional 5.0

(24)

Limited Availability

2 hires on Thumbtack
Serves Denver, CO

Larry Behrendt says, "I recently had the pleasure of working with Cade from. Russell Comfort Solutions for an HVAC issue at my place of business and I couldn't be more pleased with the experience! From the moment he arrived, he was punctual and professional, immediately putting my mind at ease.Cade took the time to thoroughly assess my system, explaining each step of the diagnostic process in a way that was easy to understand. His expertise and knowledge were evident as he identified the problem and provided multiple options for repair. There was no pressure to choose the most expensive solution, which I truly appreciated.What really stood out, though, was his commitment to customer service. He answered all my questions patiently and made sure I was comfortable with the plan before proceeding. The repair was completed efficiently, and he even took the time to clean up afterwards, which is rare!I now have peace of mind knowing my HVAC system is in excellent hands, and it has never run better. If you need an HVAC technician, I wholeheartedly recommend Cade at Russell Comfort Solutions.Thank you for a fantastic experience!---Feel free to customize any details to fit your experience!"See more

Larry Behrendt says, "I recently had the pleasure of working with Cade from. Russell Comfort Solutions for an HVAC issue at my place of business and I couldn't be more pleased with the experience! From the moment he arrived, he was punctual and professional, immediately putting my mind at ease.Cade took the time to thoroughly assess my system, explaining each step of the diagnostic process in a way that was easy to understand. His expertise and knowledge were evident as he identified the problem and provided multiple options for repair. There was no pressure to choose the most expensive solution, which I truly appreciated.What really stood out, though, was his commitment to customer service. He answered all my questions patiently and made sure I was comfortable with the plan before proceeding. The repair was completed efficiently, and he even took the time to clean up afterwards, which is rare!I now have peace of mind knowing my HVAC system is in excellent hands, and it has never run better. If you need an HVAC technician, I wholeheartedly recommend Cade at Russell Comfort Solutions.Thank you for a fantastic experience!---Feel free to customize any details to fit your experience!"

Window air conditioner repair guides

How much does AC service cost?

How much does AC service cost?

By Thumbtack Staff • Last updated Aug 08, 2025

HVAC tune-up and maintenance tips.

HVAC tune-up and maintenance tips.

By Thumbtack Staff • Last updated Oct 05, 2022

How much does it cost to repair a central air conditioning system?

How much does it cost to repair a central air conditioning system?

By Thumbtack Staff • Last updated Aug 11, 2025

4 common AC problems (and how to troubleshoot them).

4 common AC problems (and how to troubleshoot them).

By Claire Blystra • Last updated Jun 06, 2023

Your HVAC troubleshooting checklist.

Your HVAC troubleshooting checklist.

By Thumbtack Staff • Last updated Oct 05, 2022

How often should you change your furnace filters?

How often should you change your furnace filters?

By Alyssa Chua • Last updated Oct 03, 2023

How much do mold inspections cost?

How much do mold inspections cost?

By Thumbtack Staff • Last updated Aug 11, 2025

How much does radon mitigation cost?

How much does radon mitigation cost?

By Thumbtack Staff • Last updated Aug 08, 2025

7 common causes of holiday house fires.

7 common causes of holiday house fires.

By Kimberly Zackowski • Last updated Nov 21, 2022

How often should you clean your dryer vent?

How often should you clean your dryer vent?

By Thumbtack Staff • Last updated Aug 10, 2023

How much does a furnace motor replacement cost?

How much does a furnace motor replacement cost?

By Thumbtack Staff • Last updated Feb 13, 2021

Let us help you stay safe from fires this holiday season.

Let us help you stay safe from fires this holiday season.

By David Steckel, Home Expert • Last updated Dec 01, 2022

There are 8 five star Window Air Conditioner Repair Professionals in Denver, CO on Thumbtack.

Why hire professionals on Thumbtack?

Free to use

You never pay to use Thumbtack: Get cost estimates, contact pros, and even book the job—all for no cost.

Compare prices side-by-side

You’ll know how much your project costs even before booking a pro.

Hire with confidence

With access to 1M+ customer reviews and the pros’ work history, you’ll have all the info you need to make a hire.