Need a New Furnace?

Furnace Installation and Replacement

Serving Greenwood Village, COServing Denver, COServing Westminster, COServing Centennial, COServing Arvada, COServing Golden, COServing Lakewood, COServing Parker, COServing Littleton, COServing Broomfield, COServing Englewood, COServing Aurora, COServing Wheat Ridge, COServing Thornton, COServing Sheridan, COServing Glendale, COServing Cherry Hills Village, COServing Columbine Valley, COServing Foxfield, COServing Bow Mar, COServing Applewood, COServing Acres Green, COServing Stonegate, CO

When it comes to installing or replacing a furnace in your Denver Metro area home, UniColorado is the trusted HVAC company you can rely on. Our team of skilled technicians is the team to get it right, every time. That’s a guarantee.

Trusted by 1000s of Homeowners & Counting!
Furnace Installation and Replacement - UniColorado Heating & Cooling
Schedule a Free Estimate Today!

Please note that you'll be contacted to finalize the date & arrival window for your appointment.

How It Works

Call us at (303) 997-0097 or schedule online. We’ll be in touch via your preferred contact method to find a convenient time that works for you.

We’ll text you when we head your way in the 2-hour appointment window.

We’ll provide pricing & options on a cooling solution that fits your needs, budget and home.

We’ll install the air conditioner end to end and take care of all details. You’re in good hands.

Furnace Installation and Replacement

furnace installation in Denver co

Furnace Installation

Service for replacing or installing forced-air furnaces.
  • Free Estimate
  • Residential Customers
  • 100% Satisfaction Guaranteed
Deserve The Best ✅
See What Sets Us Apart

Stay warm and cozy during Colorado’s chilly winters with UniColorado Heating & Cooling. As the premier furnace installation and replacement company in Denver, Centennial, and the Denver metro area, we’ve got you covered. Our skilled technicians are ready to upgrade your home with a high-efficiency furnace tailored to your needs.

Don’t let the cold get you down – our furnace installation experts will help you select the perfect system for your space and budget. We offer top-quality furnace replacement services, so you can trade in that old, underperforming unit for a warm, energy-saving machine.

Trust UniColorado for all your furnace needs. Our glowing reviews speak for themselves – we’re the go-to team for reliable, affordable furnace installation and replacement in the Denver metro area. Beat the chill and book your appointment today!

Upfront Pricing
When you need a new furnace, UniColorado is here to help. Our experienced technicians will guide you through the process, helping you select the perfect furnace for your home's unique heating needs. We offer upfront pricing with no hidden fees, so you can make an informed decision without any surprises.
Transparent Experts
Before starting your furnace installation, our technicians will help you compare your options, discussing energy efficiency, features, and other important factors. We'll provide the information you need to make the best decision for your home's heating needs.
Proud of Our Work
At UniColorado, we take immense pride in the quality of our furnace installation services and stand firmly behind our workmanship with a 100% satisfaction guarantee. Our dedicated team consistently strives for excellence, going above and beyond to ensure that your newly installed furnace provides the warm, cozy home environment you deserve.
Locally Owned
As a proudly local business, UniColorado is deeply ingrained in the fabric of the Denver, CO community. We possess a thorough understanding of the distinct heating challenges faced by our neighbors and take great satisfaction in delivering swift, attentive service to address those needs.
Licensed In
27+ Municipalities
Licensed & Certified
1000s Of
Happy Homeowners
Quality + Price
Maximizing Savings 💸
Offers to Elevate Your Home Comfort

UniColorado Heating & Air Conditioning you unbeatable offers to enhance your home comfort and efficiency, emphasizing our belief that everyone deserves access to high-quality services. Our promotions, including discounted services and special deals, are designed to provide maximum value and savings. 

Where Does
UniColorado Service? 🤝

We Are Near You Now For Furnace Installation

UniColorado is proud to provide top-notch furnace repair services to homeowners throughout the Denver metropolitan area. Our service area extends to a 25-mile radius around Denver, CO, ensuring that we can reach customers in need of heating system repairs. From the heart of the city to the surrounding suburbs, our skilled technicians are ready to diagnose and fix your furnace issues.

We serve the following cities and communities within our service area:

  • Cherry Hills Village

  • Castle Pines

  • Greenwood Village

  • Lone Tree

  • Centennial

  • Parker

  • Castle Rock

  • Littleton

  • Golden

  • Arvada

  • Westminster

  • Denver

  • Lakewood

  • Englewood

  • Aurora

  • Thornton

    + more!

We understand that a broken heater can be a major inconvenience, especially during the cold Colorado winters. That’s why we offer prompt, reliable service to get your furnace back up and running as quickly as possible. Whether you’re in Denver proper or any of the surrounding communities within our service area, you can count on UniColorado for all your furnace repair needs.

Our team is familiar with the unique heating challenges faced by homeowners in the Denver metro area, and we have the expertise to handle repairs on all makes and models of furnaces. We pride ourselves on our commitment to customer satisfaction, and we’ll work tirelessly to ensure that your home is warm and comfortable once again.

Don’t let a malfunctioning furnace leave you in the cold. If you’re within a 25-mile radius of Denver, CO, and in need of furnace repair, trust the experts at UniColorado. Contact us today to schedule your service appointment and experience the difference that our skilled technicians can make in your home’s comfort.

Furnace Brands We Repair
Furnace Installation and Replacement - UniColorado Heating & Cooling
+ more. We work on all residential furnaces of all make and models.
Your Satisfaction
Is Guaranteed ❤️
Our Homeowners Love Us For Denver Furnace Installation

We’re proud to consistently achieve 100% homeowner satisfaction. That’s the UniCo way.

unicolorado heating and air conditioning
Furnace Installation and Replacement - UniColorado Heating & Cooling
UniColorado Mitsubishi diamond dealer
Furnace Installation and Replacement - UniColorado Heating & Cooling
bosch home comfort pro

Locally owned and operated, UniColorado is the best of what the heating, ventilation, and air conditioning (HVAC) industry has to offer. UniColorado is a Mitsubishi Diamond Elite Contractor, as well as an authorized Carrier Dealer, Bosch Comfort Home Pro & American Standard authorized  dealer.

We carry and work on all residential HVAC brands.

unicolorado heating and air conditioning ford maverick
Break The Bank

How much does furnace installation cost?

Furnace replacement cost in Colorado can be as low as $5,100 including all parts and labor.

Most of our customers spent around $5,200 – $7,400 to replace their furnace in 2023*. The total cost to install a furnace can vary widely.

Most furnaces last around 15-20 years on average but well maintained units can last as long as 30 years. The time to replace a furnace is when the unit is beyond repair due to age or parts availability.

Newer gas furnaces are often quieter, more efficient and provide more features which may be reason enough to upgrade your furnace.

Need a rough estimate right now?
Try out our 100% online HVAC pricing calculators today!
Or Complicated?

What Do Furnace Features Do?

We have complied a list of common furnace features & a simplified explanation of what the functions & benefits are. If you want to know what our installers at UniColorado think, they say less features is better, unless you have a specific need for them.

Single-StageHeating has one stage. On or off.N/A
Two-StageHeating has two stages. Low & High.Gas Efficiency (~5-15%)
Variable-SpeedFurnace has multiple heating stages.Gas Efficiency + Sound reduction
ECMBlower has multiple levels of forcing air, controlled by sensorsBetter airflow
CommunicatingUses sensors to control the function of the system more finelyHigh square footage, multi-unit systems & zoning systems
The Details?

Furnace Installation Process

When you choose UniColorado for your furnace installation or replacement in the Denver metro area, here’s what you can expect:

  1. Free Estimate: We’ll provide you with a complimentary estimate and help you explore your options for a new, high-efficiency furnace that best suits your home’s needs.
  2. Installation Day: On the scheduled installation date, our skilled HVAC technicians will arrive at your residence, ready to begin the furnace installation process.
  3. Removal of Old Furnace: We’ll carefully remove your old furnace, ensuring that the area is prepped for the new unit.
  4. New Furnace Installation: Our team will expertly install your new furnace based on mechanical code and manufacterer specifications.
  5. Clean Up: Once the installation is complete, we’ll thoroughly clean the work area, leaving your home as clean as we found it.
  6. Same-Day Completion: In most cases, our efficient furnace installation process is completed within the same day, minimizing any disruption to your daily routine.

When you trust UniColorado with your furnace installation or replacement, you can have peace of mind knowing that your home’s comfort is in the hands of skilled professionals. We’re dedicated to providing top-quality service and ensuring that your new furnace is installed correctly for optimal performance and reliability.

furnace installation in denver co by unicolorado

Gas Furnace Replacement

In Colorado, where winters can be harsh and unforgiving, a reliable heating system is essential for keeping homes warm and comfortable. For most residential properties with ductwork, that system is a gas furnace.

A gas furnace is a type of forced-air heating system that uses natural gas as its fuel source. It works by heating air in a combustion chamber, then using a blower to distribute the warm air through a network of ducts to heat your home evenly.

Gas furnaces are popular in Colorado for several reasons:

  1. Efficiency: Modern gas furnaces are highly efficient, with some models boasting AFUE ratings of up to 98%. This means that nearly all of the fuel consumed is converted into usable heat.
  2. Cost-effective: Natural gas is generally less expensive than electricity, making gas furnaces an economical choice for heating Colorado homes.
  3. Reliability: With proper maintenance, gas furnaces can provide reliable, consistent heat for up to 20 years or more.
  4. Comfort: Gas furnaces heat air quickly and distribute it evenly throughout your home, eliminating cold spots and ensuring a comfortable living environment.

If your Colorado home has a gas furnace that’s showing signs of age or struggling to keep up with your heating needs, it may be time to consider a replacement. That’s where UniColorado comes in.

UniColorado is your trusted local HVAC company for gas furnace installation and replacement services in the Denver metro area. Our skilled technicians have the expertise to help you select the perfect high-efficiency gas furnace for your home and budget, then install it quickly and professionally.

inside of a forced air gas furnace

Standard Efficiency to High Efficiency

Upgrading from a standard efficiency furnace (around 80% AFUE) to a high efficiency model (90-98% AFUE) can significantly improve your home’s heating efficiency and lower your energy bills. The key difference lies in how they vent exhaust gases:

  • Standard efficiency: Metal flue pipe, vertically through the roof
  • High efficiency: PVC pipe, horizontally through an exterior wall

High efficiency furnaces extract more heat from the combustion process, allowing for cooler exhaust gases that can be safely vented through PVC. This also offers more flexible installation options.

In most cases, converting a standard efficiency furnace to high efficiency is possible, provided there’s space for the new unit and proper venting. The process involves removing the old furnace, installing the new one, rerouting gas lines and electrical connections, installing PVC venting, and connecting to existing ductwork.

The major benefit of converting to a high efficiency furnace is a reduction in gas consumption by 16-30% compared to your current standard efficiency unit. This means substantial long-term energy savings and a more comfortable home.

If you’re considering upgrading to a high efficiency furnace, trust UniColorado for professional installation and replacement services in the Denver metro area. Our experts will ensure a smooth conversion process and help you start saving on your gas bills.

furnace high efficiency afue rating
Need To Get
In Touch 😊
👋 Tell us a bit about yourself to get started

Please note that you'll be contacted to finalize the date & arrival window for your appointment.

Your Common ❓
Frequently Asked Questions
How much is a new furnace for a 1500 square-foot home?
Furnace replacement in Colorado for a 1500 sqft house will typically cost around $4,800-$6,200 depending on the type of equipment, furnace location and the complexity of the install.
When should I replace my furnace?

Typically, we recommend replacement when the unit has become older than 15 years and is not worth putting money into repairs.


Like any appliance, most furnaces have an expected lifetime of 10-20 years, lasting around 15 years on average.



What is included in furnace installation?

with UniColorado, it’s a turnkey replacement process for furnaces. The price you’ll be quoted is the final you price you pay for a fully functioning furnace and taking away the old furnace with all equipment, materials and labor included. 


  1. Install the selected system
  2. Remove & recycle the old system
  3. Clean up the installation area
  4. Test the system at length
  5. Installation is completed
How much does a furnace replacement cost?

A regular gas furnace replacement ranges from around $2,500 to $7,500. On average, the cost is around $4,500.


Can you repair an old furnace?

We can definitely try.

We ask that you keep in mind that as the unit ages, more and more parts can start failing randomly.

At a certain furnace age, it makes more sense to replace than repair, similar to an old car.

We charge $120 to check the unit and provide all options.

If you just want a replacement quote for your furnace, it’s a free estimate.

How much do you charge for a replacement quote?

It’s a free estimate to provide replacement or installation pricing for furnaces with UniColorado.

If you want your unit checked & repaired, the cost to come out is $120.

I'm not sure about replacing my furnace

If you’re not sure you need a replacement on a non-functional unit, we can check your unit out with a service call that costs $120. Our technician will fully check the unit and provide options.

If the unit is repairable, we will provide options. Keep in mind that as units pass the 15 year old mark, parts may not be available.

I want to get a high efficiency furnace

Great, we can definitely help! We provide installation services for high efficiency furnaces.

I want to get an electric furnace

Great, we can definitely help! We provide installation services for electric furnaces

I want to get a heatpump instead of a furnace

We’re pioneering Heatpumps in Colorado. From Air Source Heatpumps to Cold-Climate Heatpumps & Fully Electric systems, we can definitely help.

"Other" companies told me I need a furnace replacement, do I?

If your unit is 15-20 years old, the answer is likely yes.

If your unit is fairly new (under 10 years old) and/or has no major issues, it can typically be repaired.

About UniColorado
Delivering home comfort excellence with a personal touch.
Insights & tips from our certified experts.
Comprehensive HVAC & Electrification services for every home.
Service Areas
Serving our communities with pride and integrity.
Real reviews from satisfied customers across our service area.
Answers to your common HVAC & Electrification questions.
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