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 and NM. 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 6/30/19, 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. **2018 U.S. Homeowner Brand Study of Andersen and Renewal by Andersen brands vs. competitive brands. †Additional $35 off every window and door discount valid during first appointment only.

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.

I would rate every one of these a 5. I was extremely pleased with all the employees I have had in my home and look forward to the next windows being put in. The installers Jessie and Kasey were great, efficient, and cleaned up after themselves.

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 are very happy with our patio door. They did a great job. The installers were very clean and left our house spotless.

Todd and Tim did their usual masterful job with the windows and the patio door installation.

All persons involved in this project at our house were kind and considerate. We like the windows very much.

These windows truly are beautiful. So much so that I will be getting new window treatments that don't cover them up so much like my previous wood blinds. I want to show them off.

Sales rep is an asset to your company. Loved doing business with him. We love the new patio door he helped us choose. I believe we will order some more windows in the future!

The installation crew was only two people and they completed the project quickly and professional

Great product and great installers. Crew was on time and finished as scheduled. May order more windows later this year.

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"

Amazing products and installation. I have am very please with my entire interactions with renewal by Anderson

I am enjoying my new windows. The 3 men who installed my windows did a very good job and Thomas was very helpful in selecting my windows

George and Indy did a fantastic job with installation of my patio door. Both were extremely friendly and courteous and went beyond my expectations for cleanup afterwards. Fantasic experience!

We had to wait for one window to be installed because it was damaged, re-ordered, second one was damaged and re-ordered again.

Kasey Cook & his crew were absolutely fantastic! Couldn't be happier with how windows look & how the install went.

Zac and his team were very friendly and efficient, but the windows certainly need some adjusting, and they left the place cleaner than when they came. Thanks

We had a great experience with Renewal by Anderson. I would not hesitate to recommend them. The windows look great and everyone was wonderful to work with.

We were really wowed by the Salesman, the installer and the product. So much so that we gave the Renewal by Anderson information to a neighbor who showed interest. Excellent job all the way around!

Over the years we have replaced all our windows with Renewal by Andersen and have been really happy with the resulting ability to easily keep the house temperature where we want it.

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

Dave Top was exceptional- very professional on time courteous and resolved the issues quickly

I am very pleased with my windows. The installers I had were very professional at their job and they cleaned up after they were done. Job well done by the installers.

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

What more can I say? I give you 5 star rating in every category! Thank you for a rare and rewarding retail experience.

Great staff, great product. Wished was more affordable so I could do more windows at a time.

Industry Partners

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

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