Furnace Installation & Replacement in Littleton, CO

Stay Warm with Expert Furnace Installation & Replacement in Littleton, CO

When the Colorado cold hits, you need a furnace you can count on. At Simply Mechanical, we’ve been installing and replacing furnaces in Littleton homes for more than 30 years. Our certified technicians bring both expertise and neighborly service, making sure your home stays safe, warm, and comfortable through every season.

We don’t believe in cookie-cutter solutions. We size and install the right furnace for your home—based on its square footage, insulation, and efficiency goals—so you get reliable heat without sky-high bills. Ready to replace an old, inefficient unit? We’ll walk you through your options and install a system built to last. 

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What Your Neighbors Are Saying About Us

Ralph A.
Both very friendly, courteous, competent and fast. By days end, unit was completely installed. Tyler came back next day (on his day off) to walk us thru operation and maintenance. Chatted for a few minutes about his background and said he loves working for Simply Mechanical as he has an amazing boss- best ever.
Barret V.
Absolutely a joy to work with. Very knowledgeable people who don’t try to take advantage of you. They are very pragmatic about what is the best way to take care of a problem at the lowest cost to you. They act like they are doing the job on their own house.
Paul B.
Steve Martin was prompt, professional and analytical. With his advice, I was able to replace a circuit breaker and repair the air conditioner. I am very satisfied with Simply Mechanical's performance and will recommend them to others.
Abigail F.
Stephen and his team are amazing to work with! He is thorough in his inspections, has great pricing. They also offer financing and great applicable specials to your needs! It's a reminder you get what you pay for! If you want a great experience, an honest and reputable business, Simply Mechanical is the right choice for you!
Cannon P.
Simply Mechanical did an amazing job replacing our AC system! We had a very unusual system from a previous homeowner, and Simply Mechanical worked tirelessly to replace it with a better system, and they gave us a great price too!
Eric B.
Great, communicative, experienced company. Stephen is very friendly and knowledgeable. Willing to do what it takes to get units fixed correctly. John and Tyler are also very friendly and knowledgeable. They come out as quickly as possible, communicate, and do the job correctly.
JustForPaws
Great team! Everyone is very respectful of each other and the space they are in. They are efficient and work together as smooth as possible. Job is done right and for a fair price!
Laura M.
Of the bids that we got, Simply Mechanical was the most knowledgeable, honest and reasonably priced. Options were presented and we decided to replace our furnace. A temporary fix was done until the replacement could be scheduled. Our new furnace got us through the cold snap!
C J
The technician did an excellent job. He was very knowledgeable and thorough in checking the HVAC system and quickly resolved the problem. We were impressed and very pleased with the service provided by Simply Mechanical.
Laurie D.
This company did a great job for me. Followed through with all details and in a timely manner. They had to go through my home and took extra steps for cleanliness. I got 5 bids and this company was the best and even added some extra services with no charge. Very impressed and look forward to working with them moving forward. Thanks

What Can We Do About Your Heating Issues?

If your furnace is constantly breaking down, costing too much to run, or just not keeping up with the cold, it may be time for a replacement. At Simply Mechanical, we’ll give you clear, honest advice: sometimes a repair makes sense, but often, investing in a new, high-efficiency furnace pays off in comfort and savings.

We work with all major furnace brands and install models that are designed to perform in Colorado’s tough winters. You’ll know what’s wrong, what your options are, and exactly what it will cost—before we start. That’s the Simply Mechanical way. 

Choose Us for Reliable Furnace Installation in Littleton, CO

A furnace replacement is a big step, but we make it as easy as possible. From the first call to the final walkthrough, you’ll get straightforward answers and dependable service. Our NATE-certified techs show up on time, respect your home, and handle the installation with precision.

We install everything from standard gas furnaces to high-efficiency variable-speed systems with smart thermostat controls. And because we live here too, we know what works best in Littleton’s unpredictable winters. Our goal is simple: keep your home comfortable and your heating bills manageable.

And when the job is done, we don’t just disappear. We’ll help you register your warranty, explain maintenance tips, and answer any questions. You can always count on us for support.

Heat Your Home with Confidence—No Guesswork, No Shortcuts

With Simply Mechanical, you won’t get a rushed installation or vague pricing. You’ll get clarity, careful work, and a furnace that’s set up to run efficiently for years. We protect your floors, clean up our workspace, and thoroughly test the system before we leave.

We’ll also haul away your old furnace and show you how to use your new one so you feel confident from day one. Plus, we know the local rebate and incentive programs that can make upgrading more affordable, and we’ll guide you through them. 

Experience Stress-Free Furnace Installation Near Me

Choosing a new furnace doesn’t have to be overwhelming. With Simply Mechanical, you’ll work with a team that respects your time, budget, and peace of mind. We provide financing options, flexible scheduling, and honest advice—always.

Our neighbors in Littleton count on us because we focus on real results: warm homes, safe systems, and long-term value. Call us today and let’s get your home ready for the next cold front.

frequently asked questions

How do I know if I need a new furnace or just repairs?

If your furnace is 15+ years old, needs frequent service, or isn’t heating evenly, replacement may be the smarter choice. We’ll help you weigh your options.

We install trusted brands including Lennox, Trane, Carrier, and Rheem—systems proven to perform in Colorado winters.

Most installations are completed in a single day. More complex projects may take a little longer, but we’ll set clear expectations.

Yes. We help Littleton homeowners access utility rebates and energy efficiency incentives to reduce upfront costs.

Yes. We have financing options available with approved credit to make your furnace installation more affordable. 

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