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.

The installers were very good and very professional. Kept things very neat and clean. We very impressed with their courtesy and concern for meeting our expectations. I would recommend them to anyone wanting to install new windows.

The new windows and door have become much more reliable in temperature control. They are very attractive.

Everyone was very kind and efficient. The work was done as scheduled and in a timely manner. Everyone was here as scheduled.

Awesome job! Can't wait to get the other windows installed. We have enjoyed the new windows, get a lot of compliments. Thank you :)

Excellent windows, products & service. Everything done quickly, efficiently and on time. I will recommend Renewal by Andersen to others.

After initial visit and sale, customer relation/sales man NEVER followed up. We never received an estimate, although we had been promised one. He was all about "the sale", not the customer! This $ took all of our savings too!!

The Installers were outstanding. I would like to thank the entire Andersen staff for their total Commitment to the customer.

Everything turned out okay. The staining work was great except it took a month for someone to come out.

The team that installed our windows was great! We are very happy with our beautiful windows

The windows/product are incredible. The installers were terrific, knowledgeable and efficient. Overall job - big thumbs up!

Joey always does a great job in helping me select a window(s). We've done three projects together--All with fantastic results. Four installers are friendly, efficient and real pros!

I plan to do another set of window replacements with you in the coming spring, based upon the value received in the ones just completed.

Renewal by Andersen is both an outstanding product and organization. The entire experience was beyond expectation. Thanks

Everyone we talked to was friendly and professional. The work was done efficiently with very little time exposed to outside weather. We love this product and will get more when we need them. Thanks

They were a good team and did a good job. I don't like making me use 50 characters in this field!

One expectation was the new windows would not leak around the outside of the windows which they have. Strong windy days also has resulted in whistling in one. Installers were good to work with and have corrected many things found wrong so far.

I could not say enough about he windows. It is so quiet in my house and when they are closed with air conditioning on or off it remains cool. I am very pleased I even got my son to have new windows put in his home and he is equally pleased

I am so impressed with the quality of the window. So far my house has stayed warm longer this winter!

Delivered what we expected, the service is beyond perfect as we got what we paid for. Will continue to use this company in the future.

Dan and Donna (67) - From start to finish, our Renewal by Andersen experience was first class. This was our second installation and we won't hesitate to use Andersen again if necessary. HIGHEST RECOMMENDATION!

The installers arrived on time did their job and cleaned everything up before they left. They were courteous and efficient.

I am very satisfied with everything your company did. The doors are beautiful. The men that did the work, were wonderful. Thank you, for the good work.

friendly professional service from the first knock on the door from appt setter to completion of job. just a little pricier than I thought it would be, but agreed to cost.

i am very happy with my new patio door by Anderson. From the sales person to the installation the project was very professional great job.

Very good product , the people that came into my house were very nice, professional and cleaned up after.

Industry Partners

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

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