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Why Discount Windows in Denver, Colorado? Lots of Reasons!

#1 You install or we install without compromising your product warranty

Many home improvement companies will only honor a product warranty if they install it for you. At discount Windows & Siding INC. you receive a full product warranty regardless of who installs it.

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windows for sun room

Remember, we are here to serve you and make sure you are 100% satisfied with the results.  Contact us for the best service. 303-295-7283

#2 - Expert Installation

If you prefer a turnkey window and or door replacement project look no further than Discount Windows & Siding,  NC. Our installers have over fifty years of experience. They will come to your home for a precise measurement before any special order is placed.  In addition, our installations carry a full warranty. 

fiberglass entry doors

#3 - We're There When you Need Us

We sell outstanding products that offer some of the best warranties in the industry. Even so there may be a time when you need our assistance. We service the products that we sell and we also coordinate warranty service with the manufacturer if that is preferable.


#4 - Fantastic Selection, Including French Doors and So Much More!

Since 1984 Discount Windows Siding, INC has been offering unparalleled product, price and service. We are fixtures in the community at our high visibility Denver location at I-25 and I-70 having been at this location for over twenty years.

French Doors or Sliding Doors?

Why work with DWS in Denver. Colorado?

  • We take pride in offering the best customer service in the industry.
  • Our experts have a minimum of five years experience with each of the product categories that we carry. This includes, windows, entry doors, French doors, patio doors and siding.
  • No one at Discount Windows & Siding, Inc works on commission.
  • We are true consultants.
  • We will take the time to learn about your project.
  • With our expertise we’ll recommend solutions that both exceed your goals and respect your budget.
  • Click to See More Patio Doors
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There is absolutely no pressure to buy and no gimmicks since we subscribe to the BBB Code of Advertising. We will give you a free estimate in writing.

Call today to find out if we have your window in stock. 303-295-7283

Largest Selection of French Doors and Sliding Doors

Looking for energy efficient French Doors or Sliding Doors?

  • We offer many lines of energy efficient patio doors, French doors, Entry doors and siding from numerous manufacturers.
  • Everything from entry level builders grade to high end triple pane units with R-10 glass  packages are available
  • Chances are we will have what you are looking for at the price you are looking for.
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Need New or Replacement Windows?

In addition to custom ordering windows, patio doors, French doors, and siding, we are the largest stocking window seller in the Rocky Mountains. We warehouse thousands of overstock windows. These include:

  • New vinyl, wood, and aluminum windows that are purchased by the truckload from many window manufacturers and sellers.
  • These windows are in stock and are available at tremendous savings.
  • Typically fifty percent off or more!
  • Tips on How to Clean Small Window Panes