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Residential Window Replacement in Castle Rock, CO

Replacement Window Installation in Castle Rock, CO

Replacement Windows in Castle Rock, COAre your windows dated, damaged, or inefficient? Are you simply ready for a new window style that can complement your home and make it more comfortable?

No matter why you’re looking for replacement windows for your Castle Rock home, Zen Windows Denver has the high-quality windows you need, backed by excellent service, great warranties, and affordable prices!

We’ve changed the way homeowners buy replacement windows, making it as easy and stress-free as possible! That’s why our approach is focused on high-quality products, exceptional workmanship, convenience, and integrity—and it’s why so many homeowners pick us for window replacement service in Castle Rock.

Get a fast, 100% accurate quote by contacting us online or calling (866) 504-2342!

At Zen Windows, we always guarantee:

  • Free, zero-hassle, 100% accurate quotes
  • Zero money down and zero pressure throughout the process
  • Beautiful results, a 100% satisfaction guarantee, and lifetime warranties
  • The most zen-like experience you’ll find for replacement window shopping and service in Castle Rock, CO!

Our Replacement Windows in Castle Rock

Our selection of window styles in Castle Rock can’t be beat! Whether you need new windows for your bathroom, living area, basement, or anywhere else in your home, Zen Windows Denver has you covered! We offer all types of replacement windows, including:

  • Single hung windows: These windows have a classic, beautiful style. They have one fixed and one adjustable sash.
  • Double hung windows: As the most popular window available, this model includes two operating sashes.
  • Slider windows: These operate via a horizontal sliding action, offering wider views in any room.
  • Casement windows: Thermally efficient, casement windows open outwards, usually by turning a crank
  • Awning windows: These windows open outward from a hinged top, which is great for airflow and keeping out rain.
  • Picture windows: These fixed windows are designed to bring in natural light and gorgeous views, rather than to be opened for ventilation
  • Bay/bow windows: Bay and bow windows are three-dimensional and can add space, light, and a viewing area to any home.
  • And more!


Some features of these base model double-pane windows include:

  • High-performance low-E and Solar low-E glass options
  • Fusion-welded sashes and frames built to be exceptionally strong and durable
  • Dual-fin, wool-pile weather stripping to protect the perimeter of all sashes


The Nirvana model has the same qualities as our Karma line, with some key additional features:

  • An exterior beveled mainframe with a drip cap to enhance beauty and style
  • An insulating comfort foam in the frame that improves the window’s thermal effectiveness
  • A heavy-duty vent lock that allows the window to remain partially open for ventilation


These triple-pane windows come with Ultra S and Solar Ultra S glass options. They are reinforced with fiberglass to ensure maximum security. They also feature:

  • A Super Spacer® metal-free, warm-edge sealing system
  • Screen latches to lock screens in place
  • Low-profile tilt latches on double hung options, making them easy to use and clean

Get Beautiful, Energy-Smart Windows in Castle Rock Today

Whenever you’re ready for new or replacement windows for your Castle Rock home, Zen Windows Denver is just a call or click away! When you work with us, you can be confident that you’re always getting durable, high-quality windows that will look great and last for years. Plus, with Zen Windows, you always count on getting:

Call (866) 504-2342 or contact us online to get a free quote and get started now! Don’t forget to ask about our excellent financing options!