AC Services in Centennial, CO

Keeping Centennial Homes Cool When It Matters Most

Centennial summers are no joke. With temperatures climbing into the 90s and the Front Range sun beating down, a reliable air conditioning system isn’t a luxury — it’s a necessity. At Fireside Heating & Cooling, we provide comprehensive AC services to homeowners throughout Centennial, CO, delivering the kind of dependable, honest workmanship your family deserves when the heat hits hardest.

Whether your system needs a routine tune-up, an urgent repair, or a full replacement, our experienced technicians are equipped to handle it all. We understand the unique demands that Colorado’s climate places on HVAC equipment, from dry summer heat to the occasional late-season cold snap, and we service every system with that local knowledge in mind.

Our AC Services in Centennial

AC Installation & Replacement

If your current system is aging, inefficient, or simply no longer keeping up, it may be time for a replacement. We help Centennial homeowners select the right unit for their home’s size, layout, and budget, then handle the installation from start to finish. We work with leading equipment brands and ensure every installation meets local building codes and manufacturer specifications.

AC Repair

When something goes wrong with your air conditioner, a fast response makes all the difference. Our technicians diagnose and repair a wide range of AC issues, including refrigerant leaks, compressor problems, electrical faults, frozen coils, and airflow restrictions. We show up prepared, explain what we find, and get your system running again as quickly as possible.

AC Tune-Ups & Preventive Maintenance

The best way to avoid a breakdown on the hottest day of the year is to schedule regular maintenance before cooling season begins. Our AC tune-up service includes a thorough inspection of all system components, cleaning of coils and drainage lines, refrigerant level checks, thermostat calibration, and a full operational test. Preventive maintenance extends equipment life and keeps your energy bills in check.

Indoor Air Quality Solutions

A well-functioning AC system does more than cool your home, it affects the air your family breathes every day. We offer indoor air quality assessments and solutions, including air filtration upgrades and humidity management, to complement your cooling system and improve the overall comfort of your living space.

Why Centennial Homeowners Choose Fireside Heating & Cooling

We’re not a national chain with a call center across the country. We’re a local team that works in communities like Centennial every day. That means we’re familiar with the neighborhoods, the housing stock, and the specific challenges that come with Colorado’s altitude and climate swings. When you call us, you reach real people who care about getting the job done right. Our technicians are fully licensed, background-checked, and committed to transparent pricing. We’ll never recommend a repair or replacement you don’t actually need, and we’ll always take the time to walk you through your options before any work begins.

Signs Your AC System Needs Attention

Not sure whether your air conditioner needs service? Here are some common warning signs Centennial homeowners should watch for:

Your home isn’t reaching the temperature set on the thermostat
Unusual noises coming from the unit — grinding, banging, or rattling
Weak or inconsistent airflow from vents
Higher-than-normal utility bills without a clear explanation
Visible ice buildup on refrigerant lines or the outdoor unit
Unpleasant odors when the system is running
The system is cycling on and off more frequently than usual

If you’re noticing any of these issues, it’s worth having a professional take a look before a small problem becomes a costly one.

Schedule Your AC Service in Centennial Today

Don’t wait until your system fails on a sweltering July afternoon. Fireside Heating & Coolingis ready to help Centennial homeowners stay comfortable all season long — with honest service, competitive pricing, and work you can count on.

Call us today or fill out our online form to scheduleyour AC service appointment. Whether it’s a tune-up, a repair, or a full system replacement, we’ll make sure the job is done right the first time.

Testimonials

What Our Clients Say?

Our commitment to exceptional service has earned us the trust and satisfaction of countless customers in Highlands Ranch and beyond. Don’t just take our word for it—see why so many homeowners rely on us for their HVAC needs.

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   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.
  
 
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   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.
  
 
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   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.
  
 
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   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.
  
 
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   Kevin Devaney 
 
 
 
  Only company I use.
  
 
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   Kevin Devaney 
 
 
 
  Great service, very reliable and "Nixon" is a pleasure to work with.
  
 
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   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.
  
 
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   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!
  
 
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   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!
  
 
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   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.
  
 
  
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Frequently Asked Questions

How often should I have my AC system serviced in Centennial?

Once a year is the standard recommendation, and spring is the ideal time — before you’re relying on the system daily. Annual maintenance catches small issues early, keeps the system running efficiently, and can meaningfully extend the lifespan of your equipment.

How long does a typical AC installation take?

Most standard residential AC installations are completed in a single day. More complex jobs — such as replacing ductwork or installing a system in a home that previously didn’t have central air — may take longer. We’ll give you a clear timeline during your consultation so there are no surprises.

What size AC unit does my Centennial home need?

Sizing depends on several factors: square footage, ceiling height, insulation quality, window placement, and sun exposure. An undersized unit will run constantly and still struggle to cool your home, while an oversized unit will short-cycle and wear out faster. We perform a proper load calculation before recommending any equipment.

My AC is running but not cooling. What's likely wrong?

This is one of the most common calls we receive. The cause could be low refrigerant, a dirty air filter restricting airflow, a failing compressor, or a frozen evaporator coil. Some of these have simple fixes; others require more involved repairs. A quick diagnostic visit is the best way to pinpoint the issue accurately.

Is it better to repair or replace an older AC system?

A good rule of thumb: if the repair cost exceeds 50% of the cost of a new system and the unit is more than 10–12 years old, replacement is usually the smarter investment. Newer systems are significantly more energy-efficient, which means lower monthly bills and fewer repairs going forward. We’ll always give you an honest assessment of both options.

Do you service all AC brands?

Yes. Our technicians are trained to work on all major residential AC brands and equipment types, including central air systems, heat pumps, and ductless mini-splits.