Furnace Repair
Furnace Repair Services in Highlands Ranch
Ensure your home stays warm and comfortable with our expert furnace repair services. Our skilled technicians quickly diagnose and fix any issues, restoring your heating system’s performance and reliability.

Fast Response
We offer prompt and efficient repair services to get your furnace back up and running, minimizing downtime and discomfort.

Skilled Technicians
Our experienced team is equipped to handle all types of furnace repairs, ensuring accurate diagnostics and effective solutions.
STAY WARM
Reliable Furnace Repair
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Fast Response When the Temperature Drops
A furnace that shuts down mid-season leaves local homeowners watching the thermostat fall. Our skilled technicians respond quickly, pinpoint the cause, and restore steady warmth. We repair all makes and system types, including common cold-weather problems like:
- Faulty igniters that keep the furnace from firing
- Thermostat issues causing uneven or no heat
- Blower motor problems that stop warm air circulating
- Gas valve failures affecting the burner
- Restricted airflow from clogged filters
- Short cycling, where the furnace turns on and off too often
24/7 Emergency Furnace Repair in Highlands Ranch, CO
Heat does not always fail at a convenient hour. We offer 24/7 emergency furnace repair with same-day and after-hours availability, so a furnace that goes out on a subzero night gets attention right away. Call (303) 506-9716 and our team will respond promptly.
Why Local Homeowners Choose Fireside
We are a locally and veteran-owned company with over 11 years of experience keeping nearby homes warm. Every repair comes with upfront pricing, a 100 percent satisfaction guarantee, and honest, licensed service. Request a free quote 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
Proudly serving Highlands Ranch as a locally and veteran-owned business.

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

100% Satisfaction Guarantee
Your satisfaction is our top priorityāguaranteed 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 wasnāt 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. Weāll help you find the perfect unit for your home.

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

AC Repair
Keep your home cool and comfortable with our expert AC repair services. We quickly diagnose and fix issues to restore your system's performance.

Furnace Replacement/Installation
Invest in a new, energy-efficient furnace with our expert installation services. Weāll 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.
How It Works
Simple Steps to Your Free Quote
Getting started with your HVAC project is easy. Follow these three simple steps, and weāll 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 weāll discuss product choices transparently, explaining the process step by step so you can make informed decisions.
Get a Quote
Weāll provide an accurate, obligation-free quote and work with you to schedule your HVAC project at a time that suits you.
Frequently Asked Questions
What are the most common signs that my furnace needs repair?
How do I schedule a furnace repair in Highlands Ranch?
Do you offer financing for furnace repairs?
What payment methods do you accept for furnace repair?
How much does furnace repair typically cost in Colorado?
Do you offer emergency furnace repair services, and how quickly can you respond?
How often should I have my furnace serviced to keep it running efficiently?
Are your furnace repair technicians licensed and insured in Colorado?
What type of furnace is best suited for Coloradoās cold winters?
Do your technicians provide upfront pricing before starting the repair?
Which areas do you serve?Ā
We proudly serve homeowners across the Denver metro area — including Aurora, Castle Rock, Centennial, Denver, Greenwood Village, Lakewood, Parker, Littleton, Highlands Ranch and Lone Tree.
