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Furnace Installation in Denver | Free Furnace Estimates in Denver

For Great Deals on High-Efficiency Furnaces, Call Cooper!

If you’re considering replacing your furnace, call the Cooper Green Team. Our installation estimates are 100% free, and our Project Managers are some of the industry’s most knowledgeable advisors.

They’ll help you find a high-efficiency furnace system that perfectly suits your home. Once installed, you’ll love how much lower your energy bills will be!

Experience You Can Trust

With hundreds of thousands of successful installations across the Front Range

100% Satisfaction

Proven by Our A+ BBB Rating Since 1990

Real Reviews. Real Homeowners.

Thousands of homeowners across the Denver Metro trust the Cooper Green Team.

Expires December 31, 2026

2026 REBATE ALERT — SAVE UP TO $11,800 ON QUALIFYING SYSTEMS

Colorado homeowners may qualify for up to $11,800 in rebates and credits in 2026 when upgrading to eligible energy-efficient home systems. Availability and eligibility vary by program.

How it works: We’ll help you identify which programs you qualify for and guide you through the rebate documentation process.

Schedule with offer

Potential 2026 Savings Include:

Up to $9,000 — Xcel Energy customers only (expires 12.31.26)

Up to $1,000 — State of Colorado tax credit (expires 12.31.26)

Up to $1,500 - Power Ahead Colorado (For installing eligible cold-climate heat pumps)

Up to $300 - Bryant Fall Rebate - Bryant products only

Rebates and tax credits are subject to program rules and funding availability and may change without notice. 

The Xcel rebate is available only to eligible Xcel Energy customers. Program administrators determine final rebate amounts. 

Cannot be combined with other offers unless permitted by program guidelines.

 

Contact us with any questions or to schedule your FREE in-home estimate.

Expires September 30, 2026

Back to School 📚 Back to Comfort 🏡

If your HVAC system is showing its age, now is the perfect time to upgrade before cooler weather arrives.

💰 Save up to $2,000 on a qualifying high-efficiency HVAC system installation.
💵 Qualify for up to $11,800 in rebates
⭐ Flexible financing available

Schedule with offer

- Valid on full, qualifying systems only

- While Supplies Last

Promotion must be presented at the time of booking. Cannot be combined with other offers; no cash value. Additional terms and restrictions may apply.

Contact us with any questions or to schedule your FREE in-home estimate.

Our furnace installation process

  • Schedule your free estimate

    You can schedule your estimate by calling us at (720) 605-7270 or by requesting an appointment online. We'll reach out quickly to set up a day and time that works for you.

  • Get high-efficiency system options

    The Project Managers at Cooper know their stuff. They'll show you a variety of furnace systems and let you decide which is best. We'll also try to find utility, state, federal, and manufacturer rebates available.

  • Let us install your system

    In most cases, one to two days is the typical installation timeframe. However, this varies based on the existing system and the new requirements and modifications. Installation is a critical factor in the purchase process. We never want to rush or cut corners. A proper installation is a key differentiator among companies, and we take pride in having the best installers in Denver.

  • Enjoy lifetime savings and better comfort

    Our customers love seeing their energy bills go down after we install a new furnace. They also enjoy better post-service customer support from our team than any other contractor. If something isn't quite right after installation, we're just a phone call away!

Save money and extend the life of your new furnace

Want to keep your brand-new furnace healthy and efficient for as long as possible? Join our Green Club Maintenance Plan. As a member, you'll receive high-performance tune-ups on your cooling & heating system every year, plus:

  • Reduced emergency service fees
  • 2 tune-ups/year (heating + cooling)
  • 10% discount on repairs and installs
  • 1-year labor warranty on all repairs
See Plan Details

"So glad we went with this company for this home upgrade!"

The team at Cooper is fantastic! Very professional, timely, knowledgeable, and friendly. They’ve bent over backward to complete our installation and we have absolutely no complaints. So glad we went with this company for this home upgrade!

—Terry R. | Colorado Homeowner

See more outstanding 5‑star reviews on Google

Furnace installation cost factors:

System size

When we talk about furnace size, we're talking about power. Power is a measure of a furnace's BTU output. Having the right size furnace and ductwork for your home is essential. Oversizing a furnace can cause even more issues than an undersized furnace. Like a water hose with too much pressure, an oversized furnace can build up pressure, causing additional strain on the system and short cycling, creating uneven temperatures. Likewise, if the furnace is undersized, it can struggle to heat your entire home and cause longer run cycles using more energy. During a free in-home consultation, we'll ensure your new furnace is sized perfectly for your home.

System efficiency

All furnaces have an AFUE rating, which tells you how efficient the system is. The higher the AFUE rating, the more upfront the furnace will cost and the more energy savings you'll see over the long run.

Comfort features & add-ons

Nowadays, furnaces can be upgraded with all sorts of features. For example, you can combine your installation with a new smart thermostat or upgrade your furnace to run more intelligently and efficiently with modulating burners and variable blower motors.

These items can increase installation costs but add value and comfort. As Denver's top HVAC replacement company, we see the benefits of these added values daily. We love educating our customers on all options to ensure their purchases fit them.

Looking for a more accurate monthly estimate for your furnace installation?

Furnace Installation FAQs

High-efficiency gas furnaces are a popular choice due to their reliability and ability to handle cold temperatures.

Most installations are completed within one day, though additional work may extend the timeline.

A higher AFUE rating means better efficiency. Many homeowners choose systems with 90 percent efficiency or higher.

Yes, newer furnaces operate more efficiently and can significantly reduce energy costs.

A professional load calculation ensures the system matches your home’s heating needs without overworking.

Furnace Installation Blogs

Learn more about furnace installation and replacement by reading Cooper's blogs on the topic!

What’s the Cost of a Furnace Installation or Replacement in Colorado?

Are you looking to install a new furnace? As any Colorado homeowner can tell you, a high-quality furnace is key to staying warm and comfortable during the winter. Ideally, you want a furnace that meets your home’s needs and falls within your budget. In this blog, we cover everything you need to know about the costs to install a furnace in Denver, Colorado, and surrounding areas.

Read More

When Should I Replace a Furnace in Colorado?

Wondering if you really need a new furnace? We know replacing a furnace is an expensive decision, so you want to know if it is absolutely necessary or not.

Without having a trusted technician inspect your current furnace, it’s hard to say whether it can last a few more years or if it’s ready to retire now.

Read More

Heat Pump vs. Furnace in Colorado | Which Is Better?

Are you looking to invest in a new heating system for your Colorado home?

If so, you might be wondering which type of heating system is most suitable for your area: a heat pump or a furnace.

While many Colorado homeowners have a gas furnace to heat their home, others are completely satisfied with their heat pumps. So, which is the best choice?

Read More

Ready for a Free In-Home Furnace Estimate? Call the Cooper Green Team!

Hours of Operation

The Cooper Green Team is open 24 hours a day, 7 days a week.

11780 Colmans Way
Broomfield, CO 80020

(720) 605-7270

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