When Colorado summers heat up, Castle Rock homeowners count on reliable, efficient air conditioning to stay comfortable indoors. At Fireside HVAC, we deliver expert AC services designed to meet the unique needs of homes and businesses throughout the Castle Rock area. Whether you’re dealing with an unexpected breakdown, considering a system upgrade, or simply staying on top of regular maintenance, our team of licensed professionals is here to help.
Comprehensive AC Solutions in Castle Rock
When your current unit is beyond repair or no longer efficient, we guide you through a seamless upgrade. Our AC installation services include system sizing, equipment recommendations, and full setup. Whether you’re replacing an older system or installing a new one in a recently constructed home, we’ll match you with an energy-efficient option designed to reduce your utility bills and improve comfort.
Looking for a flexible, energy-saving solution? Our ductless mini-split systems are ideal for room additions, garages, workshops, or older homes without ductwork. These systems provide quiet, zoned control while offering high SEER ratings for efficient operation.
Why Castle Rock Homeowners Choose Fireside HVAC
Castle Rock’s fluctuating weather demands a responsive, knowledgeable HVAC partner. Our technicians are NATE-certified and committed to providing timely, respectful service. We stay up to date with evolving HVAC technology to ensure our customers benefit from the latest innovations—whether it’s a smart thermostat upgrade or a high-efficiency system replacement.
From your attic to your air handler, we treat your home as if it were our own.
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 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.
Avoid AC Emergencies with Proactive Maintenance
While we also offer emergency AC repair in Littleton, the best way to prevent last-minute breakdowns is through regular service. Our preventative maintenance programs are designed to keep your system running efficiently, even during Colorado’s hottest days.
And if your unit ever needs replacing, we’re here with expert guidance and energy-efficient AC installation solutions tailored to your property.
Testimonials
What Our Clients Say?
Jeff Kroll2025-09-26 Great service and good knowledge of systems. D E2025-09-13 Nixon was great! When I was unable to resolve my hot water heater pilot issue myself, I feared the repairs would be costly. Not only did Nixon repair the problem within an hour, but did so within their standard service call fee. nicholas smith2025-09-09 Nixon is a true professional, he got straight to the point and explained everything in detail. Everything on the invoice was absolutely perfect and will be using/recommending them to anybody that needs good hvac work.Thanks Guys!!! Elaine A2025-08-22 Nixon was super helpful and did excellent work for a reasonable price. The previous owner of the house needed the furnace fixed and only did the bare minimum so Nixon was honest about how it might give us problems during the winter so we went ahead and got a whole new setup. Very happy with the service provided and highly recommend Fireside! Ravi Patel2025-07-24 It’s good Todd Wiseman2025-07-23 Don't think there is a better HVAC company in the Denver area right now. Great work at a reasonable price and very timely and responsive. Installed a new AC unit. Highly recommended. Update: had them back for a furnace replacement in another house with a 40+ year old unit that was end of life about a year later. Same great experience. Update: 3rd AC / furnace unit in a year. Had it up and going super quick. Could not be more happy. Pics to show the quality of work done. Update: Just did a new furnace to replace a very old one in a condo, and also a cleaning service for an existing 2012 Amana AC Unit. Nixon replaced some insulation that went bad to make it work more efficiently Service went well as always - very prompt - and communication was excellent. His customer service system always works great too in letting me know when jobs are started and done without even asking. Recommended.... Paul Zwiebel2025-07-23 Responsive, diligent, professional. Communicates well. Steven Betts2025-07-23 Fireside was prompt, courteous, and professional. Didn’t try to oversell and quickly fixed my problem. Highly recommend them! David Moore2025-07-09 Fireside put in a new hvac and furnace for me. The cost was well under competitors for the same brands, and the service was excellent. You can pay a premium to work with a big company just looking to put you through their revenue engine if you want, but with Fireside you get people obsessed with their trade, rapidly responsive and willing to go the extra mile for quality and service. Highly recommended. Jody Kuhns2025-07-02 Nixon was amazing. He answered every call and got me accurate information quickly. He did not try to upsell me something I did not need. He did a spectacular job for a reasonable price. Super honest, professional and dependable!Load more
Frequently Asked Questions
How do I know if I need AC repair or replacement?
If your system is over 10–15 years old, requires frequent service, or isn’t cooling consistently, it may be time to consider a replacement. However, if the issue is minor—like a clogged filter or thermostat error—repair is often the better choice. Our technicians can assess your system and provide a cost-effective recommendation.
Are ductless systems a good fit for Castle Rock homes?
Yes. Ductless air conditioners are perfect for homes without existing ductwork or areas that need additional cooling. They offer zoned temperature control and can reduce energy consumption in underutilized spaces.
What happens during a maintenance visit?
How long does a typical AC installation take?
What brands do you service?
Do you offer emergency AC service in Castle Rock?
How do I know if my AC needs repair in Castle Rock CO?
Common signs include warm air blowing from vents, weak airflow, unusual noises, unpleasant odors, or water leakage. If you notice any of these issues, it’s advisable to contact Fireside Heating & Cooling for a professional assessment.
Do you offer emergency AC repair services in Castle Rock CO?
Yes, Fireside Heating & Cooling provides 24/7 emergency AC repair services in Castle Rock. Our expert technicians are always ready to address urgent cooling issues promptly, ensuring your home remains comfortable during unexpected breakdowns.
How long does an AC repair take?
The duration of an AC repair depends on the complexity of the issue. Minor repairs may take a couple of hours, while more extensive repairs could take longer. Fireside Heating & Cooling strives to complete all repairs efficiently without compromising quality.
How much does AC repair cost in Castle Rock?
AC repair costs in Castle Rock typically range from $309 to $446, with an average around $382. Factors influencing cost include the specific issue, parts needed, and labor rates. Fireside Heating & Cooling offers transparent pricing for all services.
Do you offer financing options for AC installation?
Yes, Fireside Heating & Cooling offers flexible financing options for AC installations. We understand that HVAC services can be an unexpected expense, and our financing plans are designed to make necessary installations more affordable. Contact us to learn more about our financing options.
What does AC maintenance include?
AC maintenance typically includes tasks such as cleaning or replacing filters, checking refrigerant levels, cleaning coils and condensate drains, inspecting ductwork, and ensuring the thermostat is functioning properly. Regular maintenance helps maintain efficiency and prolongs the lifespan of your AC unit.
Why is regular AC maintenance important?
Regular AC maintenance ensures optimal performance, extends the lifespan of your unit, reduces the likelihood of unexpected breakdowns, and helps maintain consistent cooling. It also improves indoor air quality and can lead to lower energy bills.
How long does an AC installation take?
The duration of an AC installation varies based on the complexity of the system and your home’s requirements. On average, a standard installation takes about 4–8 hours. Fireside Heating & Cooling ensures efficient and timely installations with minimal disruption to your daily routine.
Do you offer AC maintenance plans?
Yes, Fireside Heating & Cooling offers comprehensive AC maintenance plans. These plans include regular inspections and tune-ups to keep your system running efficiently and to catch potential issues before they become major problems. Contact us to learn more about our maintenance plans.
How often should I schedule AC maintenance?
It’s recommended to schedule AC maintenance at least once a year, preferably before the cooling season begins. Regular maintenance ensures optimal performance, extends the lifespan of your unit, and helps prevent unexpected breakdowns.
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.
Schedule Your AC Service in Castle Rock Today
When it comes to air conditioning in Castle Rock, Fireside HVAC is the name locals trust for honest service and reliable results. Whether you need a quick fix, an energy-saving upgrade, or ongoing maintenance, our team is here to make your comfort a priority.
Call Fireside HVAC today or book your appointment online to schedule your next AC service in Castle Rock.