When heating or cooling equipment starts acting differently, the right next step isn’t always obvious. Some systems need a focused repair. Others benefit from preventive maintenance. And older equipment may be better suited for full replacement than another round of service calls. Getting that call right is what saves homeowners money over the long run.
At Fireside Heating & Cooling, we help Littleton homeowners address equipment problems, plan system upgrades, and keep essential heating and cooling equipment operating properly. Backed by more than a decade of experience, our certified technicians work across a full range of HVAC systems and major equipment brands — giving you practical information rather than a default sales pitch.
Furnace Performance, Repair, and Replacement Options
Heating problems show up in different ways. Reduced heat output, a tripped pilot light, unusual cycling behavior, inconsistent temperatures from room to room, or a system that runs constantly without satisfying the thermostat are all signs that something needs attention. When these issues develop, our first step is an honest assessment of what’s actually affecting the equipment.
Our furnace repair and maintenance services address existing problems while also giving your heating system the care it needs between heavier periods of use. Regular furnace maintenance lets our technicians catch developing concerns — a weakening heat exchanger, airflow restrictions, refrigerant-adjacent issues in heat pump equipped systems — before they become more disruptive and expensive.
For older systems that are no longer practical candidates for repair, we handle furnace installation and replacement in Littleton, CO. We evaluate the current equipment, discuss your home’s residential heating requirements, and recommend replacement options based on what the property actually needs rather than what costs the most.
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

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.
Cooling Service for Airflow and Temperature Problems
An air conditioner doesn’t have to stop completely before it needs professional attention. Reduced airflow, uneven cooling across rooms, unusual sounds during operation, a struggling compressor, refrigerant loss, or difficulty maintaining the thermostat setting can all indicate that service is needed before a full breakdown occurs.
Our AC services include ac maintenance, thorough troubleshooting, system evaluation, targeted repairs, and preventive care. Emergency AC repair is available for situations that can’t wait — same day AC repair and 24-hour AC service are options when a cooling failure hits at an inconvenient time.
If your existing unit has reached the point where air conditioning repair no longer makes financial sense, we discuss new central air conditioner installation options that fit your home’s layout, ductwork, and cooling demands.
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 wasn’t 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
Water Heater Repair and Installation
Heating and cooling systems are only part of the mechanical equipment your household depends on daily. Our water heater repair services are available when an existing unit isn’t operating properly — whether that’s inconsistent temperatures, slow recovery times, unusual sounds, or visible signs of wear around the anode rod or heating element.
We install and replace both traditional tank and tankless water heater systems. For homes with higher or variable hot water demand, a tankless water heater eliminates standby heat loss and tends to offer better long-term efficiency than a conventional tank. For gas water heaters or electric water heater systems showing age-related decline, water heater replacement is often more cost-effective than ongoing repair.
When a water heater issue develops, we assess the equipment and walk you through whether water heater repair or full water heater installation makes more sense given the system’s age and condition.
Heat Pumps and Ductless Comfort Options
Not every Littleton property uses the same HVAC configuration, and not every homeowner wants to maintain separate systems for heating and cooling. Air-source heat pumps provide both functions through a single system, operating at efficiency ratings that traditional furnace and AC setups can’t match under moderate temperature conditions.
Heat pump systems work by transferring heat energy rather than generating it through combustion, which is what drives their strong SEER2 and HSPF2 performance ratings. For Littleton homes where energy efficiency is a priority, an air-source heat pump or hybrid heating system that pairs a heat pump with a gas furnace backup can cover both comfort needs with lower operating costs over time.
Ductless systems serve areas where conventional ductwork isn’t the preferred configuration — finished basements, additions, home offices, or rooms that have always been difficult to condition. We install and service ductless equipment with the same approach we bring to every job: evaluate what’s there, explain the options, and do the work correctly.
HVAC Solutions Based on System Condition and Performance
Some systems need a focused repair. Others benefit more from maintenance, replacement, or a different equipment configuration altogether. The right path depends on how the equipment is currently performing, its age, its maintenance history, and what the property requires for reliable year-round comfort.
Our approach is based on what we find during the evaluation. We explain the available service options so Littleton homeowners can make an informed decision — whether that’s an emergency HVAC service call, a scheduled tune-up, or planning a full system replacement before the next heating or cooling season.
Why Work With Fireside Heating & Cooling in Littleton?
We offer same-day and after-hours service when available, free no-obligation quotes, flexible financing options, and a 100% satisfaction guarantee on every job. Our technicians are certified, and we are an American Standard Certified Dealer while also servicing all other major HVAC brands including Carrier, Trane, Goodman, Lennox, and Rheem.
We’re not here to sell you something you don’t need. We’re here to give you a clear picture of your equipment’s condition and the most cost-effective path forward.
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. We’ll guide you in selecting the best option for your heating needs.

AC Replacement
Upgrade to a more efficient air conditioning system with our professional installation services. We’ll help you find the perfect unit for your home.

Ductless Heating & Cooling Services
Experience flexible, energy-efficient comfort with our ductless heating and cooling solutions, perfect for any space.
Frequently Asked Questions
What are the signs my heater needs repair?
Watch for inconsistent temperatures, loud noises, frequent cycling, or visible wear. These symptoms indicate it’s time to have your system checked by a professional.
How long does it take to install a new HVAC system?
Installation time varies based on system type and property layout, but most projects are completed within 1–2 days. We ensure every step is done right for optimal safety and performance.
What services do local HVAC companies in Littleton offer?
Services include installation, seasonal maintenance, emergency repairs, ductwork, and indoor air quality solutions tailored to your needs.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency service for urgent heating and cooling issues, ensuring your comfort is restored quickly and safely.
What’s the average cost of HVAC installation in Littleton, CO?
Costs vary by system size, efficiency rating, and installation complexity. We provide clear, upfront estimates and help you choose the best value for your budget.
How much does heater repair usually cost?
Prices depend on the issue, replacement parts, and labor involved. We diagnose the problem and offer a detailed quote before any work begins.
How should I prepare my home for HVAC installation?
Clear access to the installation area, ensure pets are secured, and ask your technician if any prep work is recommended beforehand.
Are your HVAC contractors licensed and insured?
Absolutely. Our technicians are fully licensed, insured, and trained to meet all state and local regulations.
How long does a typical heater repair take?
Most repairs are completed the same day, depending on parts availability and system complexity.
What kind of warranties do you offer?
We provide warranties on both labor and manufacturer-backed parts, giving you peace of mind and protection long after the job is done.
What HVAC services do contractors in Littleton typically offer?
HVAC contractors in Littleton, such as Fireside Heating and Cooling, offer comprehensive services including installation, repair, and maintenance of heating and cooling systems. They also provide indoor air quality solutions, ductwork services, and energy-efficient system upgrades to ensure year-round comfort.
How do I choose a reliable HVAC contractor in Littleton?
Selecting a reputable HVAC contractor involves checking for proper licensing, insurance, and certifications. Reading customer reviews, comparing quotes, and ensuring they offer transparent pricing and warranties can also help. Fireside Heating and Cooling is known for its professionalism and customer satisfaction.
Are there HVAC contractors in Littleton offering emergency services?
Yes, several HVAC contractors in Littleton, including Fireside Heating and Cooling, provide 24/7 emergency services. These services are crucial during extreme weather conditions when heating or cooling systems may fail unexpectedly. Prompt response ensures safety and comfort for residents.
What should I expect during an HVAC system installation in Littleton?
During an HVAC system installation, professionals assess your home’s size and insulation to recommend an appropriately sized system. The process includes removing old units, installing new equipment, and testing the system for optimal performance. Fireside Heating and Cooling ensures a seamless installation experience.
Can HVAC contractors in Littleton help with indoor air quality issues?
Yes, HVAC contractors in Littleton, like Fireside Heating and Cooling, offer solutions to improve indoor air quality. Services include installing air purifiers, humidifiers, and UV light systems to reduce allergens, dust, and pollutants, ensuring a healthier living environment.
Do HVAC contractors in Littleton offer financing options?
Many HVAC contractors in Littleton provide financing options to make system installations and repairs more affordable. Fireside Heating and Cooling offers flexible financing plans, allowing homeowners to manage costs with approved credit, ensuring access to essential HVAC services without financial strain.
How often should I schedule HVAC maintenance in Littleton?
It’s recommended to schedule HVAC maintenance at least once a year, preferably in the spring or fall. Regular maintenance ensures your system operates efficiently, extends its lifespan, and helps prevent unexpected breakdowns, especially during peak heating or cooling seasons.
What should I do if my HVAC system isn't working properly?
If your HVAC system isn’t functioning correctly, first check the thermostat settings and ensure the system is powered on. If issues persist, contact a professional HVAC contractor like Fireside Heating and Cooling for a thorough inspection and prompt repair services.
How can I improve the efficiency of my HVAC system in Littleton?
Improving HVAC efficiency involves regular maintenance, such as cleaning filters, checking refrigerant levels, and ensuring proper insulation. Upgrading to a programmable thermostat and sealing ductwork can also enhance performance. Fireside Heating and Cooling provides energy-efficient solutions tailored to your home’s needs.
What is the lifespan of an HVAC system in Littleton?
The lifespan of an HVAC system in Littleton varies based on usage and maintenance but typically ranges from 15 to 20 years. Regular maintenance and timely repairs can extend the system’s life, ensuring consistent performance and comfort throughout its service life.
How do I know whether my furnace needs repair or full replacement in Littleton?
Age and repair frequency are the two most reliable indicators. A furnace under ten years old with a single issue is almost always worth repairing. Once a system crosses 15 years, has needed multiple service calls in recent seasons, or is showing heat exchanger wear or significant efficiency decline, replacement tends to deliver better long-term value. We assess both scenarios honestly and present the numbers so you can decide without pressure.
What's the advantage of an air-source heat pump over a traditional heating and cooling setup?
Heat pumps transfer heat energy rather than generating it through combustion, which makes them significantly more efficient under moderate temperature conditions. Modern air-source heat pumps carry strong SEER2 and HSPF2 ratings and handle both heating and cooling through a single system. For Littleton homeowners looking to reduce energy costs or simplify their equipment, a heat pump or hybrid heating system pairing a heat pump with a gas furnace backup is worth a serious look.
When does a water heater repair make sense versus full water heater replacement?
For systems under eight to ten years old with a specific, diagnosable issue, repair is usually the right call. Once a gas water heater or electric water heater is past the ten-year mark and experiencing multiple problems — sediment buildup, anode rod failure, heating element issues, or inconsistent output — replacement tends to be more cost-effective. A tankless water heater is worth considering at that point if your household has higher hot water demand.
Do you offer emergency AC repair and emergency heating service in Littleton?
Yes. We provide emergency AC repair, same-day AC repair, and emergency heating service for situations that can’t wait for a scheduled appointment. Whether it’s a cooling system that quits during a heat stretch or a furnace that won’t fire up overnight, we’re reachable when it matters most.
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 HVAC Service in Littleton
Whether you need emergency AC repair, furnace maintenance, water heater repair and installation, or help evaluating heat pump options for your home, Fireside Heating & Cooling is ready to assist. Our Littleton team brings licensed expertise, straightforward assessments, and the kind of service that holds up long after we leave.
Request a free quote or schedule service with our Littleton team today.
