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Top-Rated Glass block pros in Johnston - Updated Nov 2026

Avatar for Osman Masonry
Osman Masonry
5.0(
2
)
Glass Blocks - InstallGlass Blocks - Install - For Business

Serving Johnston, IA and surrounding areas

In business since 2022

Free estimates

"Project was done to completion. Quality work. Attention to detail. The workers were respectful. The worksite was cleaned after the work was done. No issues at all. Based on examples/pictures I saw from this company, I would recommend Osman Masonry for many types of projects."
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+15

Recommended by100%of homeowners
Model Drywall
New to Angi
Glass Blocks - InstallGlass Blocks - Install - For Business

Serving Johnston, IA and surrounding areas

In business since 2020

Free estimates

Offers commercial services

Model Drywall is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

SM Tile Design LLC
New to Angi
Glass Blocks - Install

Serving Johnston, IA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

SM Tile Design LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Glass Block FAQs, answered by experts

DIY is possible for small projects, but professional installation ensures proper sealing, structural integrity, and a precise finish.

Their thickness depends on application, but most glass walls are typically 3/8 to 3/4 of an inch thick. Although it’s not as common, single panes of glass can also be 1 inch thick.

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

Yes, professionals can install decorative or colored glass block patterns for a unique look.

Although glass block windows are made of multiple layers of thick glass, they can still break. If an individual block shatters, it can be removed and replaced, but this is a job for a window repair professional. The project is often complex and may require breaking the block further for removal. Do not attempt to handle it yourself, as the broken glass can be dangerously sharp. A professional will have the necessary tools and expertise to replace the broken glass block quickly and safely. Before hiring, confirm that the repair pro has experience with this specific type of window.

The Johnston, IA homeowners’ guide to glass block services

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