Repairs every heating season.
A different part fails each winter. Weigh the next repair bill against a replacement price before you approve it.
Furnace Installation & Replacement Serving Denver, Aurora, Centennial, Littleton, Highlands Ranch, and Communities Across the Denver Metro
- Good, better, best options
- Stay or switch brands
- Sized for your home
- 5.0from 50+ Google Reviews
- Xcel Energy registered contractor
- Insured
- Serving Denver since 2022
- Locally and minority owned
Why Altitude Matters for Denver Furnaces
Gas furnaces are rated at sea level. Denver is not. The State Capitol steps mark the mile, and Castle Rock sits higher still, at roughly 6,200 feet. Above 2,000 feet, most manufacturer manuals call for altitude adjustments to the gas burners and safety controls. Depending on the model, that can mean smaller gas orifices, a high-altitude pressure switch or both. Skip them, and a brand-new unit can overheat, fail to light or keep tripping its own safety switches.
Havana Solutions replaces furnaces across the Denver metro and follows the manufacturer's high-altitude instructions on each install. Sizing comes first. We look at the house, the venting and the gas line before anyone starts talking about brands or efficiency ratings. Then you choose. We install the furnace you pick, test it and show you how the new system runs before we leave.
5,280 feet
Denver's elevation, well above the 2,000-foot mark where most manuals call for altitude changes.
17% less oxygen
Per breath at Denver's elevation than at sea level, and burners need oxygen to fire cleanly.
16% less gas
What a 95% AFUE furnace burns to make the same heat as an 80% model, by the rating math.
15 years
The age at which ENERGY STAR suggests weighing a furnace or boiler replacement.
Signs It Is Time to Replace Your Furnace
Catch these signs early. Fall is the time to compare options and prices, before the heating season puts you on a deadline. Wait for a January breakdown, and the decision gets made in a cold house on short notice.
A pilot flame that never goes out.
A standing pilot usually means an older furnace. The Department of Energy puts systems like these at 56% to 70% efficiency.
A cracked heat exchanger.
This part keeps the flame and its exhaust away from the heat that reaches your rooms. A crack usually means replacement. If a carbon monoxide alarm sounds, get everyone outside and call 911.
Cold rooms on the coldest nights.
If a tune-up did not fix it, the unit may be too small for the house.
Rust on the burners or vent pipe.
Moisture inside the cabinet eats at metal parts, and cleaning does not reverse that damage.
Parts that are hard to find.
Older models lose factory support. Each repair then waits on a part that may no longer be made.
Not ready for a new furnace? If a repair still makes sense, we will say so. Furnace repair starts with a diagnosis, not a sales pitch, and the repair price lands in writing before any work. Weighing a heat pump instead? A cold-climate heat pump can replace the furnace outright. On a qualifying system, the Xcel Energy rebate can cover part of the cost.
What Does Furnace Replacement Cost in Denver?
- A furnace replacement is priced as a whole project. Four things move the number most: size, efficiency, venting and gas line work, and the altitude setup.
- An 80% furnace dropping into the old spot costs less than a 95% model needing new venting and a drain.
- Havana Solutions prices yours after a site visit. You get good, better and best options in writing, with photos of what we found.
- FTL Finance offers financing, subject to approval. Already out of heat? The $70 diagnostic comes first, credited toward a repair if you approve one.
What Changes Between the Two Efficiency Levels
80% or 95% Furnace for Your Home?
A 95% furnace burns less gas. It also needs plastic vent pipes and a drain line, and some houses make that extra work expensive. Sometimes the 80% model is the smarter buy. When it is, we will say so, and you still see both prices in writing.
| 80% furnace | 95% furnace | |
|---|---|---|
| Share of the gas turned into heat | About 80% | About 95% |
| Venting | Metal flue, often into an existing chimney | PVC pipes, usually through a side wall or the roof |
| Drain line | Not needed | Needed for the water it produces |
| Upfront price | Lower | Higher |
| Gas use each winter | Higher | Lower |
What Matters More Than the Brand Name
Why Denver Homeowners Pick Us for New Furnaces
Sized for the house, not the label.
An oversized unit heats in short bursts, wears its parts faster, and leaves rooms swinging between warm and cold. Too small, and it runs nonstop. We size the new furnace to your home first. Brand talk comes after.
Stay with your brand or switch.
Some homeowners like the brand they have and want the same name on the new unit. Others want a change. We ask which you prefer and install all major brands, with no tie to any one maker. The install and the sizing matter more than the badge.
You know what you bought.
Every option comes with a plain explanation: what changes from one to the next and what the extra money buys. Ask anything. You decide with every trade-off in front of you, at your own pace, in English or Spanish.
Out With the Old Furnace, In With the New
Tell us about the old furnace
Call or send the form. Tell us how old it is, what it has been doing lately and when someone can let us in.
We size up the house
We check the venting, the gas line and the space the new furnace has to fit. Photos record all of it.
You pick your furnace
Good, better and best options land in writing, with the brand question settled your way. Nothing gets ordered until you say yes.
Install day
We remove the old unit, set the new furnace for your elevation and fire it up. Then we show you how it runs, down to where the filter goes.
Planning Ahead or Already Out of Heat
Book a Furnace Replacement Visit in Denver
Replacing a furnace on your own schedule beats replacing one in a cold snap. Book the site visit early if the old unit is aging and you want time to compare. Lost heat already? Call us. We find the problem first, and a repair stays on the table whenever the numbers favor it.
If You Are Planning Ahead
Use our booking form to share the days and hours that suit you, or call (720) 659-2059. We confirm by phone. Your written options follow the site visit.
If the Furnace Has Quit
Call (720) 659-2059 and describe the problem, from the first strange noise to the moment the heat stopped. Regular hours are 8am to 5pm. After that, a different rate applies, and we confirm it before anyone heads your way.
Furnace Installation Across the Denver Metro
From Denver south to Castle Rock, the ground climbs about 900 feet, and the furnace setup climbs with it. Each install is matched to its own elevation. Littleton has its share of boiler homes, and those get a new boiler instead. Near the edge of the communities we serve? One call settles it.
See Service Area- Denver
- Aurora
- Centennial
- Littleton
- Highlands Ranch
- Castle Rock
Furnace Buying Guides for Denver Homeowners
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Your Old Boiler Just Started Acting Up. What Should You Do?
What each boiler symptom actually means, the checks worth doing yourself, when to shut it down, and how to judge repair against replacement.
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Hydronic Air Handlers: How One Unit Heats Your Condo and Your Hot Water
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Reviews From Denver Furnace Customers
5.0
50+ Google reviews
Such a fantastic experience. My heat went out right before the Arctic front came and he made sure to come and install my furnace before we were without heat in negative temperatures. Very professional, great installation, clean work. Very knowledgeable and explained everything along the way…
Summer Rader3 years ago on Google
Exceptional service from start to finish! I recently hired Havana Solutions to install a new heating and cooling system in my home, and I couldn't be happier with the results. From the initial consultation to the final installation, every step was handled with professionalism and expertise.
Marcos Cazulo2 years ago on Google
This was one of the best experiences we have ever had with any company. Their prices were extremely reasonable and the customer service was absolutely amazing. we had our air-conditioning go out in the middle of summer and he came afterhours to help us with our issue…
Matt Coatesa year ago on Google
Great experience!. The technician came to my home fast because my furnace wasn’t working and my house was getting cold. The technician said there was a problem with a limit switch that went bad. I didn’t understand what he meant because I have no idea about furnaces…
karen46413 years ago on Google
Deivy installed a new furnace and thermostat in my home. He was prompt, courteous, conscientious and knowledgeable. He answered all my questions and was very thorough in all he did. He cleaned up when the job was done. He was a very pleasant person to have in my home…
Anna Lisa Reynolds3 years ago on Google
I had an amazing experience with this company!!! The customer service is outstanding , “Havana solutions” exceeded my expectations, this is my 3rd time with this company and after trying several other companies, I finally found the perfect fit with this one…
Jose Andrade3 years ago on Google
Called on weekend got immediate response, had to get replacement part. Returned next day and repaired to my satisfaction! 100% happy with price and work ethics and a job well done!
Jim Kloberdanz3 years ago on Google
Furnace Installation FAQs
How much does a new furnace cost in Denver?
It depends on the house. Havana Solutions prices each furnace replacement after a site visit and gives you good, better and best options in writing.
How long does a furnace last in Colorado?
Age alone does not settle it. ENERGY STAR suggests weighing a replacement once a furnace or boiler passes 15 years of service. Havana Solutions also looks at the condition, the repair history and the cost of the next fix before recommending one.
Should I stay with my current furnace brand?
That is your call. Havana Solutions asks whether you want to keep your brand or switch, and installs all major brands. The sizing and the install matter more than the badge.
Can I replace my furnace with a heat pump?
Yes. Havana Solutions installs ducted and ductless cold-climate heat pumps, and qualifying systems can enter the Xcel Energy rebate process.
Do you set up new furnaces for Denver's altitude?
Yes. Havana Solutions follows the manufacturer's high-altitude instructions on each furnace we install. Depending on the model and your elevation, that can mean an orifice change, a pressure switch change or both.
Do you offer financing for a new furnace?
Yes. Havana Solutions offers financing through FTL Finance. Your proposal is set up on their platform, and you apply with FTL directly.
Ready to Price a New Furnace?
Tell us how old the furnace is, what it has been doing and whether a repair quote already exists. We will visit, size the replacement to the house and put your options in writing. Then you choose.
- 5.0 from 50+ Google reviews
- Good, better, best options
- Stay or switch brands
- FTL financing