Business Name

KAS Windows LLC is family owned and locally operated window installation company with over 32 years of experience. With two locations – in Mattoon, IL and Champaign, IL, the business is owned and operated by Jeff and Kim Sledge. Till date, we have installed more than 50,000 windows, providing top window products and quality workmanship for every project. Our company also offers siding and gutter services. Regardless of the size of the project, we do the job right and ensure 100% customer satisfaction.

Why Choose Us

  • Honest and Quality Work
  • We treat you like Family
  • Free Consultations and Free Estimates
  • Family Owned and Operated
  • Fair Pricing
KAS Windows LLC
KAS Windows LLC


“The most professional and honest place! Thank you very much, KAS! You make our life easy!”
– Marta S.

“KAS windows did an excellent job replacing my basement windows!! I have an older home and thought it would be close to impossible to get them taken care of!”
– Susan M.

“Windows look great, love the grids, everything done and cleaned up in one day.”
– Carol M.C.

Call Us Today

Whether you are looking for window installation or window replacement, our professionals will get the job done quickly and perfectly. Call us today! We look forward to serving you.