skip to Main Content
(720) 608-3503
Exclusive Savings: Save 20% on Windows, 20% on Patio Doors, & 20% on Installation

Lasting, Custom Replacement Windows
& Doors in Castle Rock, CO

Renewal by Andersen Denver serves Castle Rock, CO with superior products, processes, and customer care. Our replacement windows and doors are backed by master installation and a 20-year warranty for complete quality assurance—in any style that suits your home.

Learn more about our signature service below, then get started with a complete in-home design consultation and energy analysis today.

The Renewal by Andersen Difference

Energy efficiency.

Our windows are made with superior energy efficient materials guaranteed to save you home heating and cooling costs.

Strength and durability.

Functional styles are made to be used—and open and close easily for years to come in any climate.

fibrex chart

Custom design options.

Create nearly any design that complements your home and style with options from interior and exterior colors to grilles and hardware.


Renewal by Andersen windows and patio doors are backed by a limited warranty to perform just as well as the day they were installed over time.

Replacement Windows in Every Shape and Style

Renewal by Andersen is committed to improving your home with the window and door features that matter most to you. That’s why we offer design and configuration options throughout the process for home improvements to complement every aspect of your home and your life.

Choose from a selection of 7 stationary and functional styles. Your design consultant can help you identify which suite your needs best—as well as how each might look in your home. Then, design your window to match or redefine your home with up to 49 color combinations, a range of hardware styles, and grille types.

Whether you’re looking to update or match a more historic look, Renewal by Andersen Can custom-design the perfect solution for your unique Castle Rock home. Get started today with an in-home consultation, and start experiencing our full-service guarantee for yourself.

Proudly Serving Castle Rock, Colorado

We’d love the chance to help you with your next home improvement. As Castle Rock’s source for lasting replacement windows and doors, we’re committed to a full-service, hassle-free experience every time. Learn more about our commitment to customer care when you call or email us today.

Black Hawk
Castle Rock
Highlands Ranch

Enhance your Denver Views from the Inside Out

All Renewal by Andersen windows are made with Fibrex® material, which holds window glasses with twice the strength of vinyl. This means you can see more of your home’s unique Denver area scenery, as our sleek, narrower frames provide a greater view than standard wooden or vinyl windows. They also allow a more energy efficient seal, so you can truly being the outdoors into your home risk-free. View our gallery to get inspired, then learn how you can make the most of your view with a new replacement window.

Custom Patio Door Installation

We’re also improving Castle Rock area homes with lasting, energy efficient, and fully custom patio doors. Choose one of three styles made to accommodate your family’s lifestyle, then add features to fully accentuate your home’s design.

Consider a French hinged door to complement a more classic or historic look, or go modern with a sliding style in either French or contemporary sleek frames. Just like our windows, you can then design your patio door in a range of design options from colors to hardware. Plus, all door styles offer additional configurations to increase usability.

Regardless of your custom design, all patio doors by Renewal by Andersen offer unmatched energy efficiency for the Denver area weather. Hinged and sliding door types feature continuous weatherproof composite strips along every edge to block out the elements, while a 5-point latch locking system keeps your interior comfortable and secure. In any style, our doors are guaranteed to control heating ans cooling costs for years to come.

Renewal by Andersen Signature Fibrex® Material

Made from 40% recycled wood fiber by weight, Fibrex® provides the strength of wooden windows with the versatility of vinyl.
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.
Fibrex® frames are completely saturated with color during manufacturing, so you never have to worry about paint cracking or flaking off.
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 Castle Rock 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.