AC Replacement / Installation
AC Replacement & Installation Services in Highlands Ranch
Upgrade your comfort with our professional AC replacement and installation services. Whether you need to replace an outdated unit or install a new system, our experienced team ensures a seamless process, providing you with efficient and reliable cooling for years to come.

Expert Installation
Our certified technicians install your new AC system with precision, ensuring optimal performance and energy efficiency from day one.

Tailored Solutions
We assess your homeās specific cooling needs and recommend the best AC system to fit your space and budget, providing personalized comfort.
Trusted AC Experts in Highlands Ranch
AC Replacement & Installation Services in Highlands Ranch
Choosing the right AC system for your home is essential for maintaining comfort and efficiency. Our team guides you through the selection process, offering expert advice and high-quality installation to ensure your new system meets your needs. With our comprehensive services, you can enjoy a cool, comfortable home all summer long.
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 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.

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. 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 signs that I need a new air conditioner?
Signs you may need a new air conditioner include frequent breakdowns, rising energy bills, inconsistent cooling, and the unit being over 10ā15 years old. If repairs are becoming costly or ineffective, replacement might be more economical. Fireside Heating and Cooling offers expert assessments to guide your decision.
How do I choose the right AC unit for my home?
Selecting the right AC involves considering your home’s size, insulation, and climate. Fireside Heating and Cooling can perform a load calculation to recommend an appropriately sized unit, ensuring optimal efficiency and comfort. Factors like energy efficiency ratings and features should also be considered.
Are there financing options available?
Yes, Fireside Heating and Cooling offers flexible financing options for AC installations. These plans are designed to make your investment more manageable, with various terms and interest rates to suit your budget. Contact us to explore the best option for you.
Do you offer emergency AC installation services?
Fireside Heating and Cooling provides emergency AC installation services to ensure your home remains comfortable during unexpected breakdowns. Our team is available 24/7 to handle urgent installation needs promptly and professionally.
How can I schedule an AC installation?
Scheduling an AC installation with Fireside Heating and Cooling is simple. You can call our office directly or visit our website to request a free quote. Our team will assist you in selecting the right unit and scheduling a convenient installation time.
How long does AC installation take?
The duration of AC installation varies based on the complexity of the system and your home’s requirements. On average, a standard installation takes about 4ā8 hours. Fireside Heating and Cooling ensures efficient and timely installations with minimal disruption to your daily routine.
What is the best time of year to install a new air conditioner?
The best times to install a new air conditioner are during the spring or fall. These seasons typically offer milder temperatures, allowing for more comfortable working conditions and potentially lower installation costs due to reduced demand.
How do I know if my current AC unit is the right size for my home?
An improperly sized AC unit can lead to inefficiency and discomfort. Fireside Heating and Cooling can perform a load calculation to determine if your current system is appropriately sized for your home’s cooling needs. This assessment ensures optimal performance and energy efficiency.
How long will my new air conditioner last?
With proper maintenance, a new air conditioner can last between 10 to 15 years. Regular servicing, such as annual tune-ups and timely repairs, can extend the lifespan of your unit, ensuring consistent performance and comfort.
What type of warranty do you offer on AC installations?
Fireside Heating and Cooling offers comprehensive warranties on all new AC installations. These warranties typically cover parts and labor for a specified period, providing peace of mind and protection against potential defects or issues. Specific terms vary by manufacturer and model.
Which areas do you serve?
We proudly serve the Denver-metro region including Aurora, Castle Rock, Centennial, Denver, Greenwood Village, Lakewood, Parker, Littleton and Lone Tree.
