skip to Main Content
(203) 456-1872
The Most Trusted Replacement Window & Door Company

Newtown’s Source For Quality
Replacement Windows & Patio Doors

Renewal by Andersen in Westchester County provides full-service window replacement and patio door installation to Newtown and the surrounding area. From start to finish, our team of experts manage every stage of your home improvement project.

Schedule a free design consultation for your home in Newtown and custom design the perfect windows and doors for your home.

Why Choose Renewal by Andersen?

Energy efficiency.

Enjoy reduced energy costs each year with our tried-and-true installation process. Improve your home’s energy efficiency even more with one of our custom glass options.

Lasting performance.

Because we use quality materials, our replacement windows can last up to 20 years and still perform as well as the day they were installed.

fibrex chart

Unique Style.

Personally design the perfect window or patio door for your home using our collection of window and door styles with custom options.


Our team of experts are committed to providing a thorough and efficient window replacement and patio door installation so your family can get back to normal as soon as possible.

Your Home. Your Style.

From start to finish, you’ll have contact with Renewal by Andersen experts. Our team is available every step of the way to answer questions or explain the next step in the process.

Every home improvement project begins with a free design consultation. This is the best time to ask questions and get inspiration from our design specialists on the style of replacement window or patio door you’re looking for. Then, our installation team will deliver and install your custom products. Each team follows a Certified Master Installer through our proven process. This process is designed to provide the best home improvement experience as well as ensure long-lasting performance.

Need some design ideas? Call our local design specialists and browse sample designs during your in-home consultation.

Serving Newtown and the Surrounding Region

We are committed to serving Newtown homeowners with full-service window replacement and patio door installation. Our team of experts is comprised of experienced local contractors and design specialists that can help you find the best products for your region. We’re available to answer your questions. Simply contact our local office and we’ll be right with you!

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

Build Better Views

Get the most out of your view with Renewal by Andersen® replacement windows. Renewal by Andersen only uses quality double pane glass. We even build narrower window frames with Fibrex® material and fill our windows with more glass than standard vinyl windows. Custom grille designs can provide unobstructed views of your backyard or neighborhood.

Hinged and Sliding Glass Patio Doors

Patio doors can add dimension to your Newton home but the installation process may seem daunting. Renewal by Andersen offers hassle-free, comprehensive patio door installation services to make your life easier.

Our patio door collection has three standard styles that homeowners can customize to match their homes. Styles include hinged French patio doors, contemporary sliding glass patio doors, and French-style sliding glass patio doors. Choose colors, handle styles, and grille designs that best complement your style.

Call our Westchester County office to set up a free consultation 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.