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TRUSTED BY WHEELING, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon956
    Verified glass block window services reviews

Top-Rated Glass block installation pros in Wheeling - Updated Nov 2026

Next Door & Window
4.6(
306
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Wheeling, IL and surrounding areas

In business since 2002

Free estimates

Warranties offered

"Replaced all my windows and 3 doors. The installers were absolutely fantastic! Very professional, hard working and kept great communication throughout the installation. Cleaned up everything, nothing was left behind. Windows and doors are absolutely lovely! Very happy I choose Next Door Window & Door for this major renovation!"
Provia Signet double entry doors.
Marvin Elevate four-panel sliding patio door
Marvin Bow
Marvin sliding patio door with transom
Provia steel door. Deep Blue.

+49

Recommended by94%of homeowners
Avatar for McCann Window & Exteriors
McCann Window & Exteriors
4.4(
221
)
Glass Blocks - InstallGlass Blocks - Install - For Business

Serving Wheeling, IL and surrounding areas

In business since 1990

Free estimates

Credit card accepted

"We had McCann come in to replace ALL our windows! Kevin came to quote them, we ordered them after we saw that their price was the best of ALL who came to quote. His team (Michael and Vitali) came to our place on Monday and they finished ahead of schedule (by one day). Their professionalism was amazing and our windows are exactly as planned! Highly recommended!"
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+19

Recommended by92%of homeowners
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Glass Block Windows FAQs, answered by experts

Glass block mortar is the best choice for glass block window units. It is specifically formulated for glass block window installation. Glass block mortar is usually a mixture of Portland cement, sand, and special chemicals. It is a white mortar that is applicable inside and outside your home. Do not use regular tile mortar because it may not have the binding strength and flexibility required for glass block windows.

New glass costs anywhere from $3 to $100 per square foot. More specifically, tempered and insulated glass—a common option for sliding glass doors—costs between $10 and $14 per square foot.

Glass block installation can be relatively expensive due to the range of material costs and the labor time to assemble this type of specialty window. The process proceeds slowly as the glass does not absorb moisture from mortar and silicone caulk takes longer to harden, leaving spacers to hold up the structure until the caulk or mortar begins to cure. Plus, if your current windows have structural issues or damage, you’ll need to repair them before beginning the project, increasing your bottom line. 

Installing glass block windows has benefits and disadvantages, as with most materials. The pros and cons can vary depending on the type of glass block and the window location.

Pros

  • Maintains privacy while letting light into the bathroom

  • Energy efficient

  • Sealed to prevent drafts

  • Aesthetically pleasing

  • Strong and secure

Cons

  • Costly to install

  • Challenging installation

  • Challenging repair

Regular cleaning with non-abrasive cleaners helps prevent buildup and maintains clarity.

The Wheeling, IL homeowners’ guide to glass block window services

From average costs to expert advice, get all the answers you need to get your job done.