Affordable Windows & Maintenance-Free Siding

The LOCAL business that you can trust!

Five-Star Service Ratings!

BBB since 1995 – Gold Star Winner

Free Window Installation

Qualify with an order of 6 or more windows.

Lifetime Transferable Warranty

Comes with all siding and window products!

Free In-Home Consultation

No obligation in-home quote.

A+ Rated Gold Star Member of the Better Business Bureau, since 1995, K & K Classic Designs

Ken Logan is the proud owner of K&K Klassic Designs, Inc.; a premier window replacement and maintenance free siding company that has been serving the SW Denver, foothills and mountain  areas for over 20 years, specializing in Littleton, Highlands Ranch, and has expanded into Evergreen, Conifer, Pine, and up the 285 corridor. 

We have been a part of the Better Business Bureau since 1995, are A+ Rated, and have earned the Gold Star Certificate.

Affordable window replacement in Colorado
Energy Efficient Replacement Windows
Best prices on replacement siding for home in Denver
Maintenance-Free Siding
best-service-window-replacement
5-Star Ratings in Customer Service
home-transferrable-warranty-on-windows
Lifetime Transferrable Warranty

Quality Replacement Windows

Contact us for a FREE in-home quote to improve your windows and energy efficiency.

Maintenance-Free Siding

Never paint your home again! You’ll love our prices–30-40% less than our competitors.

5-Star Service Ratings

We take out the middleman and bring the product to you. Check out our testimonials.

Transferable Warranty

Contact us for more info about how easy it is to pass on your lifetime warranty to new buyers.