Renewal by Andersen

Colorado's Trusted Replacement Window Supplier

Our Current Promotion

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Renewal by Andersen of Colorado is an independently owned and operated affiliate operating in CO. Offer not available in all areas. Discount applied by retailer representative at time of contract execution and applies to purchase of 3 or more windows and/or entry or patio doors. 3% cash discount for payment in full by cash or check applied at time of sale. Cannot be combined with other offers. To qualify for discount offer, initial contact for a free Window and Door Diagnosis must be made and documented on or before 3/31/19 with the appointment then occurring no more than 10 days after the initial contact. No payments and deferred interest for 12 months available to well qualified buyers on approved credit only. Not all customers may qualify. Higher rates apply for customer with lower credit ratings. Financing not valid with other offers or prior purchases. No Finance Charges will be assessed if promo balance is paid in full in 12 months. Renewal by Andersen retailers are independently owned and operated retailers, and are neither brokers nor lenders. Any finance terms advertised are estimates only, and all financing is provided by third-party lenders unaffiliated with Renewal by Andersen retailers, under terms and conditions arranged directly between the customer and such lender, all subject to credit requirements. Renewal by Andersen retailers do not assist with, counsel or negotiate financing, other than providing customers an introduction to lenders interested in financing. Window Warmth, LLC d/b/a Renewal by Andersen of Colorado "Renewal by Andersen" and all other marks where denoted are marks of Andersen Corporation. ©2019 Andersen Corporation. All rights reserved. ©2019 Lead Surge LLC. All rights reserved. *Using U.S. and imported parts.

Replacement Windows

A lot of things can change in 20 years. Your windows shouldn't be one of them.

Double Hung

The traditional look with a wide range of design options.

View Double Hung Windows


Easy to open so you can let fresh air in and stay out of the weather.

View Awning Windows


Enjoy big views with expansive, uninterrupted glass.

View Casement Windows


Add architectural interest while maximizing room space

View Bay/Bow Windows


Great for letting in light from those hard to reach spaces

View Picture Windows


Ideal for maximizing a room's view and ventilation

View Sliding Windows


15 different shape options, including custom and combination options

View Specialty Windows

Replacement Patio Doors

Transform your space and bring the outdoors in.

Hinged French

Provide easy access to your home's exterior or patio

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Sliding French

Save space and maximize your view with sliding doors.

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Why Us?

Exclusive Products

Designed for energy efficiency, durability, beauty, and minimal maintenance, our windows are made from our patented Fibrex® material that stand the test of time.

Signature Service

Our certified master installers have experience working in homes of all shapes, sizes, and styles. We get the job done right and our installations are guaranteed for life.

Homeowner Warranty

A lot of things can change in 20 years. Your windows shouldn't be one of them. Our warranty is our promise to you and is backed by extensive testing.

What Our Customers Say

We take pride in expertly fitting YOUR custom window into YOUR home.

These Andersen replacement windows are a vast improvement over my 10 yr old windows. They will be so easy to clean and the design fits my home beautifully.

The crew that has completed our last two window installations has been fantastic. We look forward to working w/ them again on the next round of windows!

All Andersen staff were professional and extremely personable. From the first cold-call contact at our door step to the final inspection, Andersen staff were top notch. We love our new windows already.

The installers arrived at the time they said they would, were very clean, efficient and left me with a beautiful window.

I really love my windows. The installation team did a beautiful job - so professional - easy to work with - hard workers!

This was the second window replacement project with Renewal by Andersen Window. I was very pleased with both projects.

We were well satisfied with the complete project . I would not hesitate to recommend to others .

Overall, the windows and installation were great. There were a couple of unexpected problems that came up; Andersen did a great job of managing them and making sure we were satisfied. Thanks!

We have had the window for about a month now and we are very satisfied with the quality. Our project manager is very knowledgeable about the product and personable. the guys that installed did a clean job. Took their time, craftsman job well done.

I was really surprised at how much construction had to be done to get the door to fit perfectly, our installer was very careful to keep the area clean and when he was finished it looked like the door was original to the house, it's beautiful!

Windows work as advertised, had a deep freeze that our old windows would have a draft flowing off them. The new windows were amazing, could hardly feel the cold outside coming thru.

Everything was very good. The installation included a threshold and new interior trim that I was not aware would be installed. I'll ask first next time.

All of Renewal by Andersen employees; representatives, installers, etc. were very personable & readily available to answer any questions we had. Very professional employees! No issues - no problems

It seems that the Window is over-priced. Other than that I am happy with the Andersen Windows.

A professional job from start to finish...extremely satisfied with product, installation and the entire team,

There was some miscommunication between the sales representative and the installer prior to the day of installation. The installers were excellent in dealing with the issue.

Love my new window and patio door. They did such an awesome job.I can't wait to get the rest of my widows done. The crew were very professional and pleasant. Thank you again!

As you can tell by my rating, the door replacement project from start to finish was a great experience.

These windows are absolutely worth the extra money. We purchased a few windows from a different company, I have to say worst decision every made. Thank you for a wonderful experience!

Everyone from the initial sales associate, to the guy who came to measure, to the installation crew was great. I also love the windows. They are keeping the heat out much better than the old ones.

From the first visit to the completion to installing windows and patio door, I was blown away by their professionalism, friendliness, and ensuring all my questions were answered and that I was satisified with their product.

There were two mismeasured openings. As the representative told us up at the beginning, any mismeasurements, would be their expense. The windows were reordered and were installed before the rest of the installation was completed

We can tell from the higher temperatures in the rooms of our home during the winter that our windows have been improved.

Love our new windows! They not only look amazing our heater very seldom comes on. The installers were great!

Tony and Carl did a great job installing our windows. They were on time, very pleasant to work with and cleaned up every evening. We are very happy with our new windows. Thanks!

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