Replacement Window Installation in Castle Rock, CO

You know your windows are leaking energy as well as money out of your wallet. They look dated and old, and you’re more than ready to switch them out for gorgeous, energy-efficient products. You’re concerned that the price you’re quoted will change when the installers show up at your home, or that your residential window replacement in Castle Rock will be too expensive to afford.

Even worse, you’re afraid that you’ll be subjected to a lengthy sales pitch and those suspicious, high-pressure “today only” deals that are too common in the home improvement business. At Zen Windows Denver, you’ll never have to deal with any of that. Our approach combines a dedication to high-quality products, workmanship, convenience, and integrity. That’s why so many homeowners pick us for their window replacement in Castle Rock.

Avoid high-pressure sales tactics and quotes that seemingly change every few minutes. Zen Windows Denver is here to install quality windows for fair prices in Castle Rock, CO. Get a fast quote or contact us today at (303) 507-5206 to learn more about our window replacement services.

Our Replacement Windows in Castle Rock

Our selection of window styles in Castle Rock can’t be beaten. Regardless if you’re trying to install new windows in your bathroom, living area, basement, or anywhere in between, Zen Windows Denver has the type of window to fit your needs. These include:

  • Single hung windows – This type of window is a classic, beautiful style that has one fixed and one adjustable sash.
  • Double hung windows – The most popular window available, this model includes two operating sashes.
  • Slider windows – These operate horizontally for a wider view.
  • Casement windows – Thermally efficient, casement windows open to the side.
  • Awning windows – These windows open from a hinged top, which is great for airflow and keeping out rain.
  • Picture windows – These are fixed windows, which are not made for opening and closing.
  • Bay/bow windows – Bay and bow windows are three-dimensional and can add space, light, and a viewing area to any home.
  • Garden windows – These windows extend from the home or building and are good for rain runoff and extra sunlight exposure.


Some features of our base model double pane window include:

  • High-performance LowE and Solar LowE Glass options.
  • Fusion-welded sashes and frame are built to be exceptionally strong and durable.
  • Dual-fin, wool-pile weather stripping protects around the perimeter of all sashes.


 The Nirvana model has the same qualities as our Karma line, but with a few key additional features like:

  • Exterior beveled mainframe with drip cap provides beauty and style.
  • Comfort Foam in the frame is an excellent insulator that improves the window’s thermal effectiveness.
  • Heavy-duty vent lock allows the window to remain partially open for ventilation.


This triple pane window comes with Ultra S and Solar Ultra S Glass options and is reinforced with fiberglass to ensure maximum security. It also features:

  • Super Spacer® metal-free warm-edge sealing system.
  • Screen latch locks the screen in place.
  • Low-profile tilt latches on double hungs are easy to use and make cleaning super easy.

Get Beautiful, Energy-Smart Windows in Castle Rock Today

Have you heard about Zen Windows Denver’s five-minute price quoting process? It’s not a game, gimmick, or too good to be true. We really do complete estimates for window installation in only a few minutes. How do we do it? Our years of experience, plus eagle-eyed research by our staff, give us the accuracy and expertise needed to draw up your quote for residential window replacement in Castle Rock.

If you want a free, quick, honest quote on replacement windows and window installation, choose Zen Windows Denver today.

We’re committed to revolutionizing window installation and replacement. Don’t forget that we also have convenient payment and financing options! Start the process by phoning us at (303) 507-5206 or using our online form.