CRS Exteriors is East Tennessee’s source for the best in windows and doors. With our many years of experience and knowledge of the product, we strive to match our customers with the products they need, on the budget they have, and with the high-quality service they deserve.

Replacement Windows Knoxville

With over 50 years of experience, CRS Exteriors improves your East Tennessee homes with new siding, doors, and replacement windows. Offering a full choice of windows and doors, CRS Exteriors brings precision work, decades of experience, and quality products to your East Tennessee home. We understand that buying a home is one of the largest investments you can make, so we pride ourselves on raising the value of your homes by improving its energy efficiency and curb appeal with our replacement windows. We feature two brands of windows, offering some of the highest quality windows and the greatest return on your investment available in the market today.

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Benefits of Replacement Windows

Highest Quality

We sell and install only the highest quality replacement windows available in the marketplace today with Infinity by Marvin (Ultrex pultruded fiberglass frames) and ProVia Windows.

Energy Saving

Your heating and cooling system needs to be efficient and this includes insulation and reducing air leakage. Some studies have shown up to 80% of a home’s inefficiency comes from around the windows and doors.

Increased Home Value

According to the National Association of Realtors, replacement windows increase your home’s value by about 97% of the cost of the windows.  

Replacement Windows – Style Options

When choosing your windows, we offer a wide range of custom sizes and optional features. Take a look at some of the windows shapes and features we offer to give your home the design and appearance that works. See the different selection options:

Awning Windows

Let the fresh air in with an awning window offering better airflow, expansive views, and a wide opening, combining form and function.

Bay Windows

Transform your room by capturing light from three angles with our bay windows featuring quality craftsmanship and countless options to enhance your home’s personality.

Bow Windows

The graceful curve of a bow-window opens up a room and captures the view.  Every window is custom designed and custom sized making it a great fit for any project.

Infinity from Marvin®

A line of fiberglass replacement windows and patio doors designed by the experts at Marvin Windows and Doors. Created for the homeowner who wants low-maintenance, energy efficiency and traditional beauty, all Infinity products offer a complete, installed package to give you a high-quality, hassle-free experience.


Endure, Aspect and Aeris windows come standard with the highest-quality frame and sash designs and the ComforTech Warm Edge Glazing system, a high-tech glass package that measurably improves thermal performance resulting in less heat loss, warmer glass temperatures and reduced interior condensation.

Before & After

Contact us today for a free in-home estimate.


From beginning to end, CRS Exteriors provided excellent customer service. The installation crew did a fabulous job! We are very pleased with our new front doors at the Etowah Carnegie Library. Well done!

Etowah Library

CRS replaced 4 windows today. Two years ago we had them replace 7. The company is professional, the office staff is super helpful and the installers are the BEST!!! no problems. We have 7 more windows that need to be replaced. We will definitely be using CRS.

Patti Y.

The job was done professionally. The workers arrived on time and left my home cleaner than when they arrived. They answered all my questions. Thank you for a job well done.

Marylees M.