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.

Everything was fine! I could certainly recommend your company and the service installer- windows are a left hand for me to close and lock. That is because I don't have the strength

Very please with the appearance and function of the five large windows installed. Easy to clean. Incredible sun and cold protection!

Windows were installed quickly and efficiently. We will consider Anderson for the next project.

We had some windows installed two years ago. We were very pleased with the windows. We decided to get three more windows completed this time. We are very pleased with the product and the installation.

All of the people involved were courteous and professional. From the consultant, Jonathan Hopper to the installer Justin Ingram. The materials arrived a month early, and the job was done quickly & on time. I will probably hire them again.

We love our new Andersen windows. When one of the windows was installed there was a gap on one side. We called and they came out right away and fixed it. It's perfect now and they are always courteous and helpful. Our house is much warmer now. :)

I've been a repeat customer for the past 11 years. The service and value continue to exceed my expectations and that's why I keep coming back!

You pay a premium but you get a quality product. I am very satisfied with my overall experience.

The installers were great and we love the windows. My only problem was trying to do this survey online. I had it all completed but it wouldn't send.

Renewal by Anderson, in my opinion, was very professional and through. I would recommend this company and product.

Sales people were very knowledgeable of your product. Installation went smooth & they were very clean and did a great job. Thank you for checking on your product and a great window.

Love the windows - received compliments from neighbors. Job well done - installers were very professional, friendly, and cleaned up nicely.

We are satisfied with our new sliding door and the service we received from all the Renewal by Andersen Team. The door is high quality and the installation was excellent, worth every dime. Thank you!

could not be more excited and satisfied with the entire project of getting our new windows installed in our home. they are everything we were told they would be.

Installation was excellent-clean and I look forward to my next purchase of windows! I will definitely be referring my friends and family

Great experience. Everyone we worked with was professional and delivered above our expectations.

I have put Anderson window in my home in Ft. Collins and two vacation homes in Winter Park. They are so efficient and I feel I have gotten moneys worth.

One of our windows makes a whistling sound when the wind blows hard. (We noticed it during a snow storm)

The best windows available, incredible service, completed on time and on budget. You can't do better than this.

Had a great experience all the way around. The windows are vastly superior to any others. The process was easy and the installation folks were excellent! I highly recommend Renewal by Anderson for anyone serious about their house.

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!

The sales person was a pleasure to work with. The work team was professional and courteous. The team also cleaned up thoroughly upon completion of the job.

We like the windows a lot. they are very well made. the installation went well. George and crew did an excellent job of clean-up and instructions

I highly endorse Andersen windows, so I orders the rest of the house to be done, which will be done this coming Tuesday.

We were told to expect about ten weeks before our windows would be ready for install, to our delight they were ready within 3. Install only took one day. The install crew was very friendly and cleaned up after themselves as the went along.

Industry Partners

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

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