Your Trusted Partner for Reliable AC Maintenance
At Fireside Heating & Cooling, we help homeowners and businesses in Littleton, CO maintain cool, comfortable indoor environments with expert air conditioning maintenance services. Backed by decades of industry experience, our licensed technicians ensure that every inspection, tune-up, and preventative measure is completed with the highest standard of care and precision.
Routine maintenance isnāt just a convenienceāitās essential for improving energy efficiency, preventing costly repairs, and extending the lifespan of your AC unit. Whether youāre preparing for summer or simply staying ahead of system wear, weāve got your comfort covered.

Comprehensive AC Tune-Ups That Keep You Cool
Our AC maintenance services in Littleton are designed to prevent issues before they start. During a scheduled visit, we thoroughly inspect your systemās critical components and ensure everything is running as it should.
Each maintenance appointment includes:
Full system performance diagnostics
Refrigerant level checks and adjustments
Cleaning of coils and condensate lines
Inspection of wiring, filters, and moving parts
Calibration of thermostats and airflow settings
Identification of any wear, leaks, or potential failures
By catching small issues early, we help you avoid expensive breakdowns, improve indoor air quality, and keep your system operating at peak performance all season 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.
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 Coloradoās hottest days.
And if your unit ever needs replacing, weāre here with expert guidance and energy-efficient AC installation solutions tailored to your property.
Testimonials
What Our Clients Say?
Todd Wiseman2025-01-22 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. Rick Adler2025-01-09 Nixon and his crew were wonderful. He took his time to explain and go through the proposed work carefully. Installation was done efficiently and with good humor. Thank you Brian Weishaar2024-12-03 Nixon was great. He gave us a competitive quote, and he did not try to upsell us on more expensive options but took the time to explain the different types of furnaces and the additional work that had been recommended by other shops. After we decided to move forward with the new furnace, Nixon was quick to get the install scheduled, he was on time, worked quickly and did a great job. I'd highly recommend Fireside Heating & Cooling if you're in need of a new system or need HVAC repairs. Henry Farrell2024-11-15 Great work as always! Fireside is my go to for all HVAC related repairs. Charles Ward2024-11-11 Nixon was great. We had a furnace go out and needed to be up and running quickly. He got the unit going and was in and out quickly. He even made time to do a couple of extra items that we needed done. Will be calling him in the future. Thanks so much TJ Christian2024-11-08 Great service! Had a tricky problem with the ac but Nixon stuck with it and found it! I canāt thank him enough for my ac working!!! Pat Deebel2024-11-07 Nixon arrived on time and was very courteous. He cleaned our furnaces and explained what he was doing and why. He helped us fix a gas leak in our water heater at no charge. We were definitely glad to have found someone so reliable and we'll definitely use again. Sadey Stillman2024-11-06 Nixon and his team were everything you need in an HVAC company: professional, polite, and extremely knowledgeable with fair pricing. I contacted 3 other HVAC companies before finding Nixon and they all ghosted me. Glad to know there's still companies out there like Fireside H&C that respect the client/vendor relationship! I'm definitely keeping his contact info handy for all future HVAC projects. Thanks, Nixon! I'm finally warm in my own home. Leslie Sepich2024-11-05 Fireside installed 2 heat pump splits and a new natural gas furnace this Spring. The splits produced more than adequate cooling for our home. The furnace is quiet and maintains our desired temperature. Today Fireside installed elevated racks to prevent snow build up blocking their operation. Installation went smooth without interruption to our service. Professional appearance to the installs as they are now mounted to the house. Always a pleasure to have Fireside personnel at our home: Courteous, professional and attention to detail. Chris Cornelius2024-11-05 Canāt say enough positive things about the job Nixon did. Within 24 hours of answering my call, he performed an HVAC diagnosis, gave me a super competitive quote, and completed the work to perfection. Very responsive and transparent. Will definitely use his services again in the future.Load more
Frequently Asked Questions
Why is regular AC maintenance important?
Regular maintenance improves performance, enhances energy efficiency, extends equipment lifespan, and reduces the likelihood of costly repairs.
What does a typical AC maintenance service include?
Our service covers full diagnostics, refrigerant checks, coil and line cleaning, filter inspection, electrical testing, and adjustments for peak system performance.
How often should I schedule AC maintenance in Littleton?
We recommend annual maintenance, ideally in spring, to ensure your system is ready for summer demand.
Will AC maintenance help lower my energy bills?
Yes! A clean, well-calibrated system uses less energy and cools your home more effectively, reducing monthly utility costs.
Do you offer maintenance plans or service agreements?
Absolutely. Our tailored maintenance programs provide ongoing service reminders, priority scheduling, and cost savings throughout the year.
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.
Schedule Your AC Tune-Up in Littleton Today
Donāt wait for your air conditioner to break down. Keep it running efficiently and reliably with professional AC maintenance by Fireside Heating & Cooling.