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The Most Trusted Replacement Window & Door Company

Full-Service Window Replacement & Patio Door Installation in Bethel, CT

Renewal by Andersen window replacement provides Bethel, CT area homeowners with full-service window and door installation! We offer a signature combination of long-term customer care, hassle-free installation, and a custom product for every kind of home. Plus, we offer unmatched quality assurance with a dedicated specialist at each step of the replacement window process.

Why Choose Renewal by Andersen?

Energy efficiency.

Fibrex® material frames are made with a unique combination of materials to withstand the elements better than vinyl windows—and for years to come!

Lasting performance.

All window types are made with additional energy efficient components preference to withstand years of regular use.

fibrex chart

Unique Style.

Match the look of your home or create an entirely new feature from the inside out with a range of styles, interior and exterior colors, and more!


Windows made with Fibrex® material showcase more of your view as they require only narrow frames to hold large panes of energy efficient window glass.

Your Home. Your Style.

At Renewal by Andersen, full-service means full-service—because we own the entire window replacement process. From design to installation and beyond, we ensure one-company accountability and avoid 3rd-party surprises.

Every window installation starts with a comprehensive, obligation-free consultation. Your dedicated design consultant is familiar with every kind of window replacement, and can help you determine your unique window replacement wants and needs. From there, an install project manager and installation team will help you start enjoying your new window sooner than you think—and for years to come!

Browse our galleries for inspiration, then contact us today to design and install your ideal Bethel CT window.

Proudly Serving Bethel CT and the Surrounding Region

The Renewal by Andersen team of replacement window experts serves Bethel, CT and its nearby region with lasting quality patio door and window installation. We’re dedicated to simplifying every step of the process to deliver lasting, beautiful home improvements—on your schedule, and in any season. Learn more with an in-home consultation today!

  • Brewster
  • Danbury
  • Katonah
  • Ridgefield
  • Redding
  • North Salem
  • New Canaan
  • Wilton

Build Better Views

No matter how you want to design your new window, Renewal by Andersen window replacement gives you more—more view, more energy efficiency, and more natural light. All of our stationary and functional windows are built to last with tough Fibrex® material frames which offer twice the strength of standard vinyl windows. That means your chosen window design keeps your family cool and comfortable for years to come, all while keeping outdoor elements outdoors where they belong.

Ask your design consultant about our custom style and energy efficiency options, then start creating your project plan today!

Hinged and Sliding Glass Patio Doors

Available in a range of colors and styles to match or complement your home windows inside and out, patio doors by Renewal by Andersen protect your home from the outdoors while also offering easy access to them for years to come.

Try a contemporary sliding glass door for a modern look to let in plenty of light, or complement a historic house with a standard French patio door. Every style offers a unique look, but with the same built-in quality to allow easy access to your hard or patio in any season.

Schedule your in-home consultation to start improving your Bethel CT area home today!

Renewal by Andersen Signature Fibrex® Material

Fibrex® material frames are completely saturated with color during manufacturing, so you never have to worry about paint cracking or flaking off.
All Renewal by Andersen windows are also guaranteed to function just as well as the day they were installed, so frames will never expand or bow.
Made from 40% recycled wood fiber by weight, Fibrex® material provides the strength of wooden windows with the versatility of vinyl.
The unique blend of Fibrex® material allows your windows to be supported by narrow frames for a wide, sleek glass area.

Get in Touch with Us

Call Renewal by Andersen Westchester to schedule your in-home consultation today. Our professionals are committed to simplifying every step of the process, so you can enjoy your new home improvement sooner than you think. Contact us to learn more about our hassle-free, 4-step process.