Furnace Installation & Replacement in Denver
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Furnace installation and replacement - FAQ
What is a new furnace installation, and how is it different from a furnace replacement?
A new furnace installation is for brand-new homes or additions where no previous furnace existed. Furnace replacement, however, means upgrading your old system to a new, more efficient model, typically utilizing existing ductwork.
How do I know I need furnace replacement?
You might need to replace your furnace if you notice the following signs:
- Rising energy bills due to decreased efficiency
- Uneven heating in different areas of your home
- Frequent breakdowns or costly repairs
- Your furnace is more than 15-20 years old
- Visible rust, cracks, or unusual noises from your furnace
We’re one of Denver’s best furnace replacement companies. We’ll help you choose the best action to reduce your furnace replacement costs. And If you can’t wait, call our emergency furnace replacement service!
What is the typical lifespan of a furnace?
The average lifespan of a furnace is around 15-20 years. However, regular service by a certified furnace installation company can extend its longevity. It’s essential to schedule annual tune-ups and address fixes promptly to maximize your furnace’s lifespan and avoid unnecessary furnace replacement costs or emergency furnace replacement services.
Who should I call for a furnace installation or furnace replacement?
Furnace installation and furnace replacement should be performed by certified furnace installers. At Sanders & Johnson, our NATE-Certified furnace installers ensure the job is done safely, efficiently, and up to code. Attempting a DIY furnace installation or furnace replacement can lead to safety hazards and potential damage to your new furnace installation. Call the best among furnace replacement companies for reliable furnace replacement servicing.
How much does a gas furnace replacement cost?
The cost of a gas furnace replacement can vary based on factors such as the furnace’s size, efficiency rating, and additional features. Gas furnace replacement costs also vary depending on the model of the furnace install and the complexity of the removal task, but our furnace installers will provide you with an honest quote after assessment.
How much does an electric furnace replacement cost?
An electric furnace replacement cost depends on size, efficiency, and features. Electric furnace replacement costs also increase with the complexity of the task, but at our furnace installation company we provide transparent pricing and financing options to make it affordable. We are the best among furnace replacement companies, and our emergency furnace replacement services are available anytime.
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The Best Among Furnace Replacement Companies in Denver, CO
Thinking about a new furnace installation? A brand-new furnace install might be just what you need, whether you’re moving into your dream home, building one, remodeling, or expanding your cozy nest. Typically, a new furnace installation can keep your home warm and cozy for about 15–20 years. But you can give your furnace installation a longer life with regular annual check-ups and maintenance appointments.
Whether you need a new furnace installation, heat pump repair, boiler service, or it’s time for a critical residential furnace replacement, count on us. Our team is quick to respond, ensuring you aren’t left in the cold.
Professional Furnace Installation Near You in Denver, CO
One thing that really sets us apart? Our furnace replacement services – it’s what makes us one of Denver’s go-to furnace replacement companies. Whether you’re in need of an emergency furnace replacement service or planning a scheduled upgrade, the best furnace installers are always ready to spring into action.
For a new furnace installation or a residential furnace replacement, count on us and our furnace installers to bring that warm, comforting heat to your home, any time, day or night!

When To Replace Your Furnace in Denver?
Some common signs it’s time to consider furnace replacement in Denver include:
- You’ve had to schedule multiple heating repair appointments, and the bills are adding up.
- Your energy bills are skyrocketing, especially when the heat’s on.
- You want a new, reliable heater that meets all your modern needs, like smart-home integration, programmable thermostat options, etc.
- The heater is over 15 years old and starting to have issues.
What To Consider Before Replacing Your Old Furnace?
When upgrading your furnace in the South Platte River Valley, you may want to consider:
- Energy efficiency: Consider the heater’s AFUE and ENERGY STAR® ratings.
- Type of heater: Do you want a gas or electric furnace? A heat pump? A boiler?
- Features: Do you want additional HVAC features, such as advanced air filtration, zoning, or a smart thermostat?
- Permits: Do you need to get a permit before installation?
Benefits of Upgrading Your Furnace in Denver
A new Denver furnace installation is your ticket to warmth!
- Improved comfort: New furnaces have modern, easy-to-use features and offer reliable heat, even on the coldest days.
- Lower energy bills: An efficient new furnace will use less energy to meet your heating needs.
- Peace of mind: Your new furnace will operate smoothly and safely.
Here at Sanders & Johnson, we hire only the best furnace techs, boiler installation technicians, and heat pump installers into our team. They’re skilled, friendly guides who’ll help you navigate through the choices for your residential furnace installation. We’ll make it a seamless, stress-free experience for you.
Denver’s Unique Furnace Challenges
Older heating systems in Denver, CO, struggle to meet homeowners’ needs on the coldest nights, leading to higher energy bills.
In Denver, older homes built between the 1930s and the 1960s often require vent upgrades, duct replacement, or sealing, along with a new furnace, to improve heating efficiency. Split-level homes built between the ‘70s and ‘90s frequently have uneven heat distribution as warm air rises, while multi-level homes may have poor airflow, resulting in cold spots and poor indoor air quality. Customized zoning systems can resolve these issues.
More than a furnace installation company, we’re your local, caring furnace installers. We’re here to guide you every step of the way and ensure you get the right services for your needs at a fair price.
Furnace Brands We Install & Service
At Sanders & Johnson, we are aware that every furnace installation and furnace replacement servicing is unique. That’s why we offer a variety of residential furnace installation and replacement options for all major brands, each tailored to suit your specific needs.
Here’s a quick rundown of what our furnace installation company provides:
- Gas furnaces: These are fantastic for efficient and cost-effective heating.
- Electric furnaces: Looking for the best furnace installation and low maintenance? Electric furnaces are your go-to.
- Propane furnaces: Leaning toward the eco-friendly side? Propane furnaces are both green and efficient.
- Boilers: We’re your local boiler repair and installation experts! Boilers are great for consistent heat, quiet operation, and easy, long-term care, with our maintenance program.
Sanders & Johnson has professional, experienced technicians who have installed and serviced every type of residential heating unit in virtually any home, regardless of size or shape.
Why Homeowners Choose Sanders & Johnson for Furnace Replacement in Denver?
Mile High City residents choose Sanders & Johnson because:
- We’re a well-established local, family-owned company, and we truly care about our community.
- Our HVAC techs are certified, experienced professionals who are capable of tackling even the most complex HVAC challenges across all brands and classes of equipment.
- We’re one of the few Denver-area companies that analyze customer problems and explain the solutions using clear, logical terms, without dishonest upselling.
- Our boiler expertise sets us apart from our competitors.
- We offer same-day service for emergency repairs. Your calls are greeted by our in-house staff, who will schedule you for immediate service, so you won’t have to wait long to get the heat back on.
- We tailor all our services to your needs, eliminating any upselling, gimmicks, or surprises at the end.
- We offer award-winning workmanship.
- We offer transparent costs and easy financing solutions (subject to approved credit) to give you budget flexibility and the right heating and air conditioning solution for your home.
- Our Family Membership Plan provides you with priority service, hassle-free maintenance, and more.
- Excellent, customer-centric service and tailored solutions.
Contact Sanders & Johnson Today
When our city calls for a little extra warmth, Sanders & Johnson is Denver’s best furnace repair and installation company and furnace replacement servicing provider. Our furnace installers aren’t just experts in their field – they’re your neighbors too, always ready with a friendly smile and unmatched know-how for furnace installs that stand the test of time.
Sanders & Johnson serves the entire Denver metro area and surrounding communities. When you need to replace your furnace in Denver, call us. As the leading furnace replacement service in your area, we’re proud to be the go-to choice for comfort and peace of mind. Reach out to us to schedule service today.
Trusted, Award-Winning Air Conditioning and Heating Services
Customer Education
Our team prefers to educate our customers in a thoughtful way, so you receive the most accurate solution. All services are tailored to your needs without any upselling, gimmicks, or surprises at the end.
Award-Winning Workmanship
We’re proud to provide our customers with the highest service quality on every call. In fact, we’ve won awards for it, including the Bryant Medal of Excellence.
Fast Response
Your calls are greeted by our in-house staff, who will schedule you for immediate service. Same-day service is available for most emergencies so you rarely have to wait to get your problem under control.








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Service Areas
Sanders & Johnson serves the entire Denver metro area and surrounding communities.
- Aurora
- Black Hawk
- Breckenridge
- Brighton
- Denver
- Dillon
- Evergreen
- Frisco
- Georgetown
- Littleton
- Parker
- Silverthorne
- Westminster
- Wildernest
Other Cities We Serve
- Arvada
- Boulder
- Englewood
- Northglenn
- Broomfield
- Golden
- Park Hill
- Castle Rock
- Greenwood Village
- Superior
- Centennial
- Highlands Ranch
- Cherry Creek
- Lakewood
- Washington Park
- Cherry Hills
- Lone Tree
- Morrison
- Wheat Ridge
- Thornton