ScheduleorCall (720) 605-7270

Cooper logo
Team photo
Childrens hospital logo bw
Lennox boiler

Boiler Installations and Replacements in Denver, CO

For Warmer Homes and Lower Energy Bills, Replace Your Boiler with Cooper!

Considering a replacement boiler? Call the Cooper Green Team! We’ll have a Comfort Advisor at your door in no time to give you a free estimate on a variety of high-efficiency systems. We select only the highest-rated, most reliable boiler brands and models for our customers. These systems last longer, require fewer repairs, and run at maximum efficiency all winter long. And when it comes to installing these systems, nobody comes close to the professionalism and skill of the Cooper Green Team.

Experienced Installers

With over 135,000 successful projects

$167 million

In customer energy savings to date

100% Satisfaction

Proven by our A+ BBB rating

No Payments or Interest if Paid in Full Within 6 Months!

Interest is billed during promo period but will be waived if the amount financed is paid in full before promo period expires.

Plan 4511. Subject to credit approval. Rates range from 15.03% - 22.82% APR (interest rates range from 15.99% - 24.99%). Loan amount and rate will vary based on your income and creditworthiness. 6 month promotional period ("Promo Period") during which interest is billed but will be waived if the amount financed is paid in full before Promo Period expires. Monthly payments are not required during the Promo Period. Any unpaid balance and amounts owed after Promo Period will be paid over 84 monthly payments. For example, assuming the full credit limit is used on loan approval date and no payments are made during Promo Period, for every $1,000 financed at a fixed interest rate of 24.99%, 6 monthly payments of $0 followed by 84 monthly payments of $26.80. This example is an estimate only. Actual payment amounts based on amount and timing of purchases. Call 866-936-0602 for financing costs and terms. Financing for the GreenSky® consumer loan program is provided by Equal Opportunity Lenders. GreenSky® is a registered trademark of GreenSky, LLC, a subsidiary of Goldman Sachs Bank USA. NMLS #1416362. Loans originated by Goldman Sachs are issued by Goldman Sachs Bank USA, Salt Lake City Branch. NMLS #208156. www.nmlsconsumeraccess.org.

Column tech at table

How much does a boiler replacement cost in Denver?

Low price:$13,060

Our avg price:$16,836

High price:$23,058

Why are our prices slightly higher?

When homeowners choose Cooper, they're choosing higher-quality service and equipment. As a direct result of that choice, our customers always see higher long-term energy savings (which pays back the upfront price of our installs). In fact, after 45 years of business, we've helped Denver homeowners save more than $167 million by upgrading to high-efficiency systems.

Boiler installation cost factors:

The boiler's size

Boilers are sized by how much heat they produce in one hour, which is measured in "BTU output". The higher a boiler's BTU output, the more it will cost. The only way to properly size a boiler is by performing a heat loss calculation, which Cooper provides for free with all boiler installations.

The boiler's efficiency levels

Every boiler comes with a specific AFUE rating that measures how energy-efficient the system will be. The higher the AFUE rating, the lower your monthly energy bills will be. Boilers with higher AFUE ratings are more expensive to buy upfront. But they can be worth it to homeowners looking to save more on their utility costs every month.

Pulling permits

Depending on where you live in Denver, your boiler installation may necessitate pulling several permits to be fully code-compliant. Unfortunately, pulling permits can be costly and time-consuming. At Cooper, we handle all permit paperwork and filing and we wrap that cost into the overall installation.

Looking for a more accurate estimate for your boiler installation?

Just call the Cooper Green Team. We'll send over an experienced Project Manager to perform a load calculation, and then provide an honest estimate for your boiler installation.
Schedule Estimate
Truck with leaves
Column techs unloading

Our boiler installation process

  • Schedule your free estimate

    We make it easy for your to schedule your boiler installation with online scheduling or over-the-phone scheduling at (720) 605-7270. Regardless of the option you choose, we'll reach out quickly to set up a day and time that works for you.

  • Get high-efficiency system options

    Before we can provide a quote for your boiler installation, we'll have our Project Manager inspect your home and perform a load calculation. From there, they'll present you with a number of high-efficiency boiler systems and explain the benefits of each option. No hard selling here—just education and advice.

  • Let us install your new boiler

    On a day that works for you, our installation team will install your new boiler. Before any work begins, everyone will don booties and place drop cloths to protect your home. And when your boiler installation is complete, the team will show you how to operate the new system and answer any questions.

  • Enjoy lifetime savings and 100% satisfaction

    Within the first month of your boiler installation, you'll start seeing lower energy bills. Plus, if for any reason you're unhappy with how the job went, we'll follow up with you and do whatever we can to make it right.

Save money and extend the life of your new boiler

Want to keep your brand-new boiler 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
Core customer tech
Core handshake tech

"I would recommend them to anyone…"

This company is staffed with responsive professional people. Every phone call I made was handled in a timely manner and always to my satisfaction. The install team was pleasant, courteous, and efficient. I would recommend them to anyone needing HVAC.

—Paul S. | Denver Homeowner

See more outstanding 5‑star reviews on Google

Team photo

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

Hours of Operation

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

Service Area