WINDOWS & DOORS

Windows & Doors

Locally and Family Owned  |  Fully Insured  |  Competitive Prices

Locally and Family Owned
Fully Insured
Competitive Prices

Professional Window Sales and Installations

When it comes to new energy-efficient windows or doors in the Mattoon, IL, area, there's only one name you need to know - KAS Windows & Construction. We have over 20 years of industry experience and are in the business for past 10 years. We have the knowledge and dedication it takes to get the job done right the very first time.

Get in touch with us to talk about your current windows or doors, and we can recommend the ideal replacement to suit your needs. All glass is backed by a LIFETIME warranty, and we've proudly served more than 4,000 satisfied customers.

Contact us today to discuss your residential or commercial window needs.

Comprehensive Window Solutions

  • Energy-efficient windows
  • Vinyl replacement windows
  • Low-maintenance windows
  • Double-strength glass
  • Custom windows to fit any space
  • Window replacements
  • Quality products from Alside

Entry & Sliding Patio Doors

  • Entry doors steel or fiberglass in multiple colors
  • Quality Entry doors from Polaris
  • Quality Sliding Vinyl Patio doors from Polaris & Alside

Before & After Photos

Call 217-254-9941
for a FREE estimate!

18 Months Same-as-Cash Financing Is Available!

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