1527 N. Main Street
West Bend, WI 53090

Call now for an appointment 262-483-7245


West Bend Glass Block custom builds and installs glass block windows in basements, bathrooms, garages, and anywhere else you need professional quality work done.

Our windows are built for both homeowners and contractors. Just give us a call with the size you need, and in 48 hours they will be ready for pickup! Glass block windows are available in square, rectangle, and a variety of patterns and sizes to ensure a custom fit in any location with any style.

Visit our GALLERY for ideas of how some of our customers have used glass block windows.

  • Energy Efficient
  • Durable
  • Private
  • Secure
  • Water Resistant

Silicone Windows

To date there have been no tests by any manufacturer on 3-inch basement windows made with silicone.

Glass Block windows made with silicone are merely caulked on the inside and outside edge. They are hollow between the glass blocks.

Other names for silicone: hot melt-adhesive, power sealant, crazy glue, gorilla glue, super glue, etc.

Silicone will not last as long as mortar.

The strength of a silicone window can easily be compromised with the use of a razor knife.

Silicone windows are susceptible to black mold on the inside of the window.

Silicone windows are susceptible to condensation on the inside of the window.

West Bend Glass Block
Mortar Built Windows

Have been extensively tested by the manufacturer and approved for hurricane force winds, water and air penetration.

Glass Block is designed and engineered for masonry (mortar) application – not silicone (International Building code – Section 2103).

Mortar built windows will not mold inside; they are completely filled from front to back.

Mortar has been used in glass block applications for over 100 years.

It is much more expensive to make a window in mortar than it is to piece it together with silicone. Generally, silicone windows are made because they are less expensive and can be made quickly and easily.


Hi! I'm Andrew Olaf Klefstad the owner of West Bend Glass Block.  I started in the masonry trade with my father when I was 16 years old -  I've been doing this work for many years!  My dad & I poured concrete, did chimney repair, and glass block. I've always really enjoyed working with glass block, which is why I decided to open my own shop.  

You can expect cheerful, professional, quality work and installations from West Bend Glass Block.  Our privately insured employees give you the added trust you can count on, with over 30 years experience in the industry.  Our superior work and great customer service is our trademark and why we have consistent repeat customers. 

Additionally, we are happy to come to your home, take outside measurements (even if you are not home), and leave the estimate for you.  Then, just look it over and give us a call to go over all the details or if you have questions.

When we install new basement windows, we remove the old window and frame, then mortar new glass block windows into your foundation.

Remember, installing glass block windows brings in more light! 

Let us know how we can help you!