Renewal by Andersen
Replacement Windows and Doors in Danbury, CT
At Renewal by Andersen, we’re backed by over 100 years of industry experience. As a full-service window replacement company quality assurance, customer care, and a hassle-free experience are guaranteed at every step. Get started with a consultation for your Danbury area home when you contact us today!
Proudly Serving the Danbury, CT Area Including: Bethel, Brookfield, Redding & More
How Can We Help with Your Next Home Improvement Process?
A new window or patio door can completely redefine the look and feel of your home, but it’s hard to know when and how to get started.
That’s why Renewal by Andersen provides full-service, hassle-free window replacement and patio door installation services. Our process is built around your needs for a totally customized experience throughout. We start with an informative in-home consultation to determine which products are best for you, then help you choose from multiple design options at each step to create your ideal home improvement. Renewal by Andersen experts take it from there, delivering an installation that’s fast, accurate, and functional for your home. Guaranteed.
Learn more about our polices, practices, and services.
Our 4-Step Process
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Why Renewal by Andersen?
Renewal by Andersen replacement windows and patio doors are met with unmatched beauty, durability, and energy-efficiency which our customers love. With Renewal by Andersen’s Signature Service, you can count on us to do the job right with a respectful approach and professionalism you’d expect from an industry leader.
Your Danbury Renewal by Andersen team is dedicated to your ideal home improvement. That means listening to your needs and concerns at every step to deliver a superior, custom experience every time. Plus, our process includes a dedicated specialist for each step—so you can expect total consistency throughout the installation process.

We believe homeowners should be able to make a well-informed choice. That’s why our process begins with information. Your initial in-home consultation is complete with swatches, samples, research, an energy efficiency analysis and more—and all free of charge! Our design consultants lay out all your options with no obligation, and no hidden fees.



All window and door projects are performed by certified master installers. That means your installation is backed by the experience, skill, and quality assurance of expert craftsmen. Your installers are familiar with every type of window and patio door, too, so they can help you achieve the exact style and configuration you’re looking for. Learn more about our experts at every step of the process when you contact us to get started today.
It all starts with a comprehensive in-home consultation with your Renewal by Andersen design consultant. They’ll go over all your options—from design, to materials, to special financing—then let the project team take it from there. A project technician measures and prepares the work are for total accuracy, and sends your custom improvement to be manufactured.
Certified master installers take it from there for a totally hassle-free process. Because we own every step of the process, a Renewal by Andersen window or door is designed, ordered, and installed with consistency. Every time.


All windows are made with superior proprietary materials for lasting value. This includes Fibrex®, our composite window frame material made with 40% reclaimed wood fiber to combine the benefits of wooden and vinyl windows. That means your windows perform better, more efficiently, and much longer than other replacement windows—and they’re all custom-made in America to fit your home.

20 Year Durability Study
We put our windows to the test by inspecting them after 20 years of regular use. These windows withstood variable climates, weather, and everyday wear and tear. Our team removed them from the home to find that even after two decades they were still in perfect working order! Plus, their Fibrex® frames didn’t chip, crack, bend or fade—inside or out! That’s why we back our windows with a 20-year durability guarantee.
Warranty
The Renewal by Andersen limited warranty is one of the strongest you’ll find on any window or patio door, at any price. It includes 20 years on glass, 2 years on installation, and 10 years on frame and hardware. It’s non-prorated and fully transferable, should you sell your home. Ask your Renewal by Andersen sales consultant for complete written details.


Patio Door Feature
In addition to replacement windows we also have a quality selection of patio doors to choose from. We offer traditional French style patio doors in both hinged and sliding options as well as more contemporary sliding glass patio doors. To accentuate the look and feel of your unique home and style we have a range of color options, glass, screens, hardware and accessories to choose from. Take a look at the selection of patio doors that Renewal by Andersen can install in your home below!
Unrivaled Style
In addition to long-term durability, Renewal by Andersen custom and specialty windows turn nearly every unique vision into a reality. Choose from 15 shape options and up to 51 color combinations to match your style or create something entirely new. Every shape of specialty window-including arched, triangular, and circular-can be further customized with style options at every step.
Custom grilles, hardware finishes, and interior and exterior colors are available for every type of window, too. Learn more about specialty windows and their multiple design options.
We would love to help you with your next home improvement project! Our goal is to make the entire window replacement process super easy for you from start to finish. All it takes is a single phone call to get started improving the look and feel of your home. Ready to schedule your free in-home replacement window consultation? Don’t hesitate to give us a call today and ask about our special offers!
- Bethel, CT
- Brewster, CT
- Bridgewater, CT
- Brookfield, CT
- New Fairfield, CT
- North Salem, CT
- Redding, CT
- Ridgefield, CT