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 between 5/11/19 and 5/31/19, with the appointment then occurring no later than 6/10/19. This 36 month financing is 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 36 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.

Couldn't be happier with the installation and windows. Great products and great service. A+ to everyone involved!

Communication was great! People doing the work were great! Very friendly, courteous and patient with us being in the way. Looking forwardto getting more windows!

I knew I would have to paint , but anticipated the trim wood would have been sanded prior to installation . Nail holes weren't filled either .

We love the new windows and patio door. We were very impressed with the installers, Rene and Thomas. They are both professional craftsmen and it shows in their work. The entire process went smoothly and was quicker than we had expected.

Our new windows and doors look fantastic. Our installation crew was competent, efficient, and friendly. They left our house cleaner than when they came, and I would definitely use Andersen again for our window needs.

I'm very happy with my Anderson windows. The first night when they were done installing the neighbor came over to see them. We were standing next to one of the windows when a semi went by. He says "Did you see that. We couldn't even hear it"

I was very pleased with the job the installer and his son helper did. they were very efficient.Job of taking out the old and putting in the newer efficient windows.

Was difficult at first. Had to call many times be fore I could talk to installer. The best installers bar none!!! But problems getting to talk to them, called a lot

Prices are high, quality is good and the window space is large, which contributes to the price.

I was completely sasified by the professional work done by the installers Platium 5 Star Representatives Thomas, Renee & Greg. I would highly recommend for any other futher projects if I ever decide to have more windows installed

This was a fantastic process and the new door far exceeds our expectations. Thank you again!

I'm looking forward to the next phase of the window replacement project, which I hope to begin next spring (2016).

Installation was wonderful. The gentlemen that did the work were very respectful, clean, and proficient. We enjoyed having them in our home. We can't wait to have the rest of the house done as soon as we pay off the first phase!

Very pleased with the product. The installers went above and beyond to ensure the very best installation possible. We love our new windows, and especially our 4 panel sliding glass door. It really brings the outdoors in!

We love our new windows! THey house is warmer the furnace runs less, and its quieter and cleaner. Thank you

I couldn't believe that 6 windows and the patio door were all installed in one day. Only finish work was done on the second day

My and husband and I are very pleased with our new windows! Anderson Windows offers many design options and they are top quality.

I rate Renewal by Andersen 5 stars in all issues.All the people I came in contact with was very professional and friendly and most of all they knew how to do a great job and that is what they did! Especially, the guys that installed the patio door.

From the time the sales rep walked in my door until the installers walked out I was very very satisfied. Everyone was extremely professional. I have already ordered more windows. Could not be happier with the job,

Our installer worked through two days of rain and until dark both days to complete the work. We had painters coming and he made sure it was done so the painters could start painting. He was professional and worked extremely hard to satisfy us.

salesperson was outstanding. Installers much better than last time very disappointed that windows showed up with wrong color grill- had to take another day off work as a result

A very professional experience, and therefore it stands out. Great guys; knew what they were doing. Everything from the sales process to Junior and his installation crew exceeded expectations.

From start to finish it was an excellent experience with the final product exceeding my expectations.

I was really pleased with the work done by the Renewal by Andersen crew. They were very professional and works quickly and efficiently. I would definitely recommend them.

Everyone done a great job. Everything was left clean every evening I would recommend Renewal by Andersen to anyone.

Industry Partners

Our commitment to our products, customers, and the environment is recognized throughout the industry.

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