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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon124
    Verified glass block window services reviews

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

Castle The Window People Mid Atlantic
New to Angi
Glass Blocks - InstallGlass Blocks - Install - For Business

Serving Cornwall, PA and surrounding areas

Approved

In business since 1991

Free estimates

Credit card accepted

Castle The Window People is the right combination of qualities to make us the best choice for your next window or door project. History: that shows our success has been sustained over decades. Buying power: we leverage our buying power to deliver the highest quality products at the best price and we provide great value. Business model: our focus is on windows and doors and we may be the most seasoned experienced professionals in the industry. Our focused experience allows us to confidently say we are window and door experts. Product and solutions: our products windows and doors are high performing, well installed, good quality windows and doors. Customer protection: we are home to the only true lifetime guarantee in the industry. Putting it all together we believe we are the best choice for your next window and or door project.

68 neighbors recently requested a quote
Avatar for Castle "The Window People"
Castle "The Window People"
3.5(
172
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Cornwall, PA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"

Everything went well.  Workers came and cleaned up.  No problems with installation.

If you want your windows done, call them.  If you are "thinking about it".  Don't call.  They will call you daily afterwards.  I had to block them from my phone as they continue to call me every 2 days for what I don't know.  Work was well but the phone calls are annoying.  

"
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Recommended by70%of homeowners
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Glass Block Windows FAQs, answered by experts

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.

Most installations take 1-3 days, depending on the number of blocks and customization requirements.

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

Options include tempered, laminated, and tinted glass for various needs.

Glass block windows come in various patterns and styles that offer privacy and unique aesthetics. Frosted or textured glass diffuses light and enhances privacy. Wave-pattern glass blocks imitate ocean waves with flowing lines. Ice-glass blocks resemble cracked ice. Fluted glass blocks feature parallel vertical grooves, adding texture and depth. Clear glass blocks, similar to glass Coke bottles, offer transparency with some distortion and may have smooth surfaces or subtle textures, adding visual interest.

The Cornwall, PA homeowners’ guide to glass block window services

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