AC Repair
AC Repair Services in Highlands Ranch
When your air conditioner isn’t performing at its best, you need fast and reliable service to restore comfort to your home. Our expert team specializes in diagnosing and repairing all types of AC issues, ensuring your system runs smoothly when you need it most.

Quick and Efficient Repairs
Our skilled technicians are trained to identify and fix AC problems quickly, minimizing downtime and restoring your comfort as soon as possible.

All Major Brands Supported
We service all major AC brands, ensuring you get the help you need no matter what system you have installed.
Trusted AC Experts in Highlands Ranch
Reliable AC Replacement & Installation Services
Summers along the Colorado Front Range put real strain on home cooling systems. Highlands Ranch homeowners face hot, dry afternoons, strong sun, and temperature changes that make cooling systems work harder.
Read More
When your cooling system fails, Fireside Heating & Cooling provides AC repair and emergency air conditioner repair in Highlands Ranch, CO. Our technicians identify the problem, explain the repair, and restore comfort without recommending unnecessary services.
What Our AC Repair Services Cover
We handle the full range of cooling problems: units that will not turn on, weak or warm airflow, refrigerant leaks, frozen coils, failed capacitors and contactors, faulty thermostats, drainage backups, and electrical faults. We service central air conditioners and heat pumps across major brands. Whether you need a quick fix or a full diagnostic on an aging unit, our AC repair services in Highlands Ranch, CO cover both routine and urgent work.
Why Highlands Ranch Homes Need Prompt AC Repairs
The Front Range climate is demanding on air conditioners. Low humidity and strong sun mean systems run long cooling cycles through the afternoon, and the sharp temperature drop after sunset forces frequent on and off cycling that wears down components over a season. Many homes here rely on a single central system to cool the whole house, so one failed part can leave every room warm. Timely repairs keep a system efficient and extend its life, which matters when summer heat arrives fast and holds.
Why Homeowners Choose Fireside Heating and Cooling
We are a local Highlands Ranch heating and cooling company, so we understand the homes and conditions in this area. We offer honest diagnostics, clear pricing before work begins, and emergency air conditioner repair for the times a breakdown cannot wait. Our aim is a repair done right the first time, backed by service you can call again next season.
Schedule Service Today
If your system is struggling in the heat, do not wait for a small issue to become a full breakdown. Call Fireside Heating and Cooling for AC repair services in Highlands Ranch, CO, and book fast, dependable service today.
What Sets Us Apart
Why Choose Fireside Heating & Cooling?

Same-Day & After-Hours Service
Enjoy prompt HVAC solutions with our same-day and after-hours availability.

Locally & Veteran-Owned

Convenient Payment Options
We accept all major credit cards for a hassle-free payment experience.

100% Satisfaction Guarantee
Your satisfaction is our top priority—guaranteed every time.

Honest & Reliable Service
Count on us for trustworthy and dependable HVAC services.

Flexible Financing Options
Get HVAC services with no money down and affordable monthly payments.

Over 11 Years of Expertise
Benefit from our extensive experience in delivering top-notch HVAC solutions.

Fully Licensed & Insured
Rest easy knowing our team is fully licensed and insured for your protection.
Testimonials
What Our Clients Say?
Posted on Google Meg Reinis Nixon is smart and quick and honest and kind. He did exactly what he said he would do and quickly assessed the issue and knew exactly how to fix it. His pricing is great and I will use him every time. Best AC company I have found. Hands down.Posted on Google John Sepich Our 2 mini-split units received their annual services today. Nixon arrived early for the service appointment. Before beginning his tune-up/cleaning, he asked if there were any issues that should be addressed during the visit. I mentioned an issue that occurred during the heating season. Both units(exterior washed/interior units checked for drainage and issues) were given a clean bill of health. Due to a leaking cooling line cap last year, there was a need for additional cooling material. Visit was punctual, friendly and professional. We even discussed setting up a twice a year maintenance schedule being proactive.Posted on Google Doug and Elizabeth Goudy Company owner Nixon was extremely knowledgeable and was able to explain things such that even I could understand it. He and his staffer Zeke were efficient and courteous. His price quote stayed the same from start to finish and work was done under the time estimate. I am 1000% pleased and will now use his company for routine maintenance.Posted on Google Robert Fischer The big fear when hiring an hvac contractor is that the service technician is looking for every opportunity to upsell or replace a furnace or ac unit. At least, I feel this way. But, what I experienced with Firestone was straight forward and honest. Instead of upselling, Nixon quickly determined where to look for the problem and then he fixed it. Easy peasy. Firestone over delivered. I will call them again when I need my hvac serviced again.Posted on Google Kevin Devaney Only company I use.Posted on Google Kevin Devaney Great service, very reliable and "Nixon" is a pleasure to work with.Posted on Google Ryan Griss We had a second HVAC unit installed in our large home. It was built with only a single unit which struggled to heat and cool the second floor. It was a big project, but service and installation went smooth.Posted on Google Lindsy Robinson Nixon was amazing. He was so professional. Very personable. Gave us options and wasn’t trying to rip us off. He knew the issue and helped us solve it! Will recommend to others!Posted on Google Blake Drnec We had great service, prompt estimate by the owner named Nixon, and a good price. Very friendly, no pushy sales, gave us three options and actually took less time than expected! Highly recommend this company owned by Nixon. Oh, and Nixon comes on site to ensure quality work at each appointment!Posted on Google Jeff Hanks I've had Nixon from Fireside Heating & Cooling over to our house twice in the last week (two separate issues) and he's been nothing but professional. He quickly identified the issue both times and either repaired or advised on the best course of action. Most importantly for me, he explained what was going on, how to prevent it in the feature and didn't try to scare us with "this is going to be a huge problem - you need to spend a large amount of money or replace your furnace and AC right now", like we so often here. He was very pragmatic in his approach and its clear he's trying to win customers the right way, through great customer service, transparency, and being fair.Load more
Other Services
AC Replacement/Installation
Upgrade to a more efficient air conditioning system with our professional installation services. We’ll help you find the perfect unit for your home.
AC Maintenance
Regular AC maintenance extends the life of your system and keeps it running efficiently. Schedule your tune-up today to prevent costly breakdowns.
Furnace Repair
When your furnace breaks down, count on our skilled technicians to get it back up and running quickly, ensuring your home stays warm.
Furnace Replacement/Installation
Invest in a new, energy-efficient furnace with our expert installation services. We’ll guide you in selecting the best option for your heating needs.
Furnace Maintenance
Prevent unexpected furnace issues with our thorough maintenance services, designed to keep your heating system in peak condition.
Ductless Heating & Cooling Services
Experience flexible, energy-efficient comfort with our ductless heating and cooling solutions, perfect for any space.
Other Services

AC Replacement/Installation
Upgrade to a more efficient air conditioning system with our professional installation services. We’ll help you find the perfect unit for your home.

AC Maintenance
Regular AC maintenance extends the life of your system and keeps it running efficiently. Schedule your tune-up today to prevent costly breakdowns.

Furnace Repair
When your furnace breaks down, count on our skilled technicians to get it back up and running quickly, ensuring your home stays warm.

Furnace Replacement/Installation
Invest in a new, energy-efficient furnace with our expert installation services. We’ll guide you in selecting the best option for your heating needs.

Furnace Maintenance
Prevent unexpected furnace issues with our thorough maintenance services, designed to keep your heating system in peak condition.

Ductless Heating & Cooling Services
Experience flexible, energy-efficient comfort with our ductless heating and cooling solutions, perfect for any space.
Frequently Asked Questions
What are common signs that my AC needs repair?
Do you offer emergency AC repair services?
Should I repair or replace my air conditioner?
How often should I schedule AC maintenance?
Can I perform basic troubleshooting before calling for repair?
Are there financing options available for AC repairs or replacements?
What should I do if my AC is leaking water?
How can I schedule an AC repair service?
How long do AC repairs usually take?
What areas do you serve?
We provide fast, reliable AC repair services throughout the Denver metro area. Our team serves communities such as Aurora, Castle Rock, Centennial , Denver, Greenwood Village, Lakewood, Parker, Littleton, and Lone Tree to ensure homeowners stay cool and comfortable all summer long.
How It Works
Simple Steps to Your Free Quote
Getting started with your HVAC project is easy. Follow these three simple steps, and we’ll provide you with a transparent, no-obligation quote that fits your needs and schedule.
Get In Touch
Call us or submit an online request, and rest assured, a dedicated member of our team will be in touch with you promptly.
Discuss Your Project
Speak to our experts about your project, and we’ll discuss product choices transparently, explaining the process step by step so you can make informed decisions.
Get a Quote
We’ll provide an accurate, obligation-free quote and work with you to schedule your HVAC project at a time that suits you.
