Discount Windows

Discount Windows & Siding, INC (DWS) was founded in Denver, Colorado, in 1984, and has since grown to become the largest stocking window retail location in the Rocky Mountain Region. With thousands of windows in inventory and over 100,000 satisfied customers, DWS is a well-established and trusted provider of new and replacement windows and doors.

Why Choose Us?

Our success can be attributed to a simple idea: sell high-quality windows, doors, and siding at low discount prices while providing outstanding customer service. We have always been a pressure-free zone, offering free estimates in writing and carrying a wide variety of windows, entry doors, and siding products for homeowners and DIYers alike. As a family-owned and operated business, we take pride in our straightforward and honest approach.

Product Offering

DWS represents some of the most innovative and highly regarded window, door, and siding manufacturers in the business. Our product offering includes:

• Simonton Windows and Doors: Simonton is a trusted name in the window industry, known for their energy-efficient and durable products.
• Vinyl Windows and Doors by Milgard: Milgard is a leading manufacturer of vinyl windows and doors, offering a wide range of styles and options.
• Vinyl Windows and Doors by Alside: Alside is a leading manufacturer of vinyl windows and doors, known for their quality and affordability.
• Vinyl Replacement Windows and Doors: Our vinyl replacement windows and doors are energy-efficient, durable, and low-maintenance.
• Entry Doors by Therma-Tru: Therma-Tru is a leading manufacturer of entry doors, offering a wide range of styles and materials.
• Patio Doors, French Doors, Vinyl and Composite Siding: We offer a variety of patio doors, including sliding patio doors, as well as vinyl and composite siding options to enhance the aesthetic of your home.

Turnkey Installation

If you prefer a turnkey window and door replacement project, look no further than Discount Windows & Siding. Our installers have over fifty years of experience, and we personally measure every job for the best possible fit. Our installations carry a full warranty, and you can choose to install the products yourself or have us install them without compromising your product warranty.

At Discount Windows & Siding, we are committed to providing our customers with the best possible products and services. We invite you to visit our showroom and see our extensive product offering for yourself. Our knowledgeable and friendly staff are always available to answer any questions you may have and help you find the perfect windows, doors, and siding for your home.