Who We Are
We're increasing curb appeal, improving efficiency, and enhancing quality of life one home at a time.
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Proudly Made in America
We proudly source materials from the USA and we’re committed to following this tradition.
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Total exterior solutions
We have solutions for your entire home exterior. Windows are just the beginning.
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Nationally known, locally owned
We provide the customer service of a small business backed by a nationally recognized brand.
A Beautiful Home Starts Here
Your Trusted Replacement Window Company in Allentown, PA
As the premier window installation company in the Lehigh Valley region, Window World prides itself on delivering exceptional replacement windows and window services that enhance the beauty and function of local homes. With top-quality products and skilled installation, we aim to make your replacement window project in Allentown, Bethlehem and the surrounding areas easy and worry-free.
More Than Just Windows
In addition to being a top window installation company in Allentown, PA, our customers turn to us for new doors for their homes. Whether you want a new entry door that will improve your home’s curb appeal or you’re interested in patio doors or storm doors, we offer a selection of high-quality options to enhance your home.
Our team is also available for shutters and siding installation to complete your home’s exterior with beautiful, low-maintenance solutions. You can count on us to help with every step, from choosing materials to installation.
We're Increasing Curb Appeal, Improving Efficiency, and Enhancing Quality of Life One Home At a Time
Proudly Made in America : We proudly source materials from the USA and we’re committed to following this tradition.
Total Exterior Solutions : We have solutions for your entire home exterior. Windows are just the beginning. Nationally Known, Locally Owned : We provide the customer service of a small business backed by a nationally recognized brand.
We give you quality and service that goes far beyond anyone else.
We opened our doors in 2003 with a promise: "Superior Products, Professionally Installed, at a Guaranteed Low Price."
Our quality products, professional local installers, and comprehensive warranties ensure that you’ll always have peace of mind.
Use our Visualizer to bring your project to life
Upload a picture of your own home and experiment with different windows, siding, and doors. Our Visualizer takes the guesswork out of your home improvement project.
Financing Available
We offer financing options with approved credit through the Window World Credit Card Program, so you can make the home updates you need without delay.
Learn MoreWindow World Gives Back
At Window World, we take service seriously.
For us, service extends beyond the customer — it’s about serving the entire community. We believe in putting our money where our heart is, raising financial support for organizations that inspire us to be better people.
Window World Cares
Window World Cares® is a foundation devoted to raising money for St. Jude Children’s Research Hospital®. Since its inception in 2008, Window World Cares has raised over $22 million for the hospital, and we show no signs of slowing down.
Window World CaresWindow World Military Initiative
The Window World Military Initiative defines our company-wide commitment to honor and serve America’s veterans, active military, and military families, across our entire system of over 200 locations.
Window World Military Initiative
We're known for our service — but don't just take our word for it.
We take great pride in delivering top-quality products and unbeatable service. We are respected by customers and experts alike, which is what has helped us become America's largest exterior remodeler. But don't just take our word for it — take theirs.
Find out what customers are saying about our unbeatable service and quality.
We are very happy that we used Window World. The windows have made a huge difference to the appearance of the house. The installers were on time and did a beautiful job with the installation.
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4.3 139 reviews