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Verified Reviews for Glass Block Service pros in Union, ME

*The Angi rating for Glass Block Service companies in Union, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Glass Block Service needs.

*The HomeAdvisor rating for Glass Block Service companies in Union, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Glass Block Service needs.

Last update on November 16, 2025

Find Glass block pros in Union

Portland Glass of Millinocket

5.00(
1
)

Portland Glass of Millinocket

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Portland Glass® has a history of success and a safety record that’s unmatched in New England. We are the providers of the best auto, home and business glass in Vermont, Maine & New Hampshire

Portland Glass® has a history of success and a safety record that’s unmatched in New England. We are the providers of the best auto, home and business glass in Vermont, Maine & New Hampshire

Portland Glass of South Paris

No reviews yet

Portland Glass of South Paris

No reviews yet
78 years of experience

Portland Glass® has a history of success and a safety record that’s unmatched in New England. We are the providers of the best auto, home and business glass in Vermont, Maine & New Hampshire. Additional Email - [email protected]

Portland Glass® has a history of success and a safety record that’s unmatched in New England. We are the providers of the best auto, home and business glass in Vermont, Maine & New Hampshire. Additional Email - [email protected]

Portland Glass of Damariscotta

5.00(
1
)

Portland Glass of Damariscotta

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Portland Glass® has a history of success and a safety record that’s unmatched in New England. We are the providers of the best auto, home and business glass in Vermont, Maine & New Hampshire

Portland Glass® has a history of success and a safety record that’s unmatched in New England. We are the providers of the best auto, home and business glass in Vermont, Maine & New Hampshire

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Glass Block questions, answered by experts

Glass blocks provide privacy, natural light diffusion, insulation, and a decorative aesthetic.

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. 

Costs depend on wall size, labor, block type, and customizations like frosted or colored glass.

Installation costs range from $400 to $1,500, depending on wall size, design complexity, and labor.

Glass block windows aren’t fire hazards; fire-rated glass block windows can increase your home’s fire safety. Modern glass blocks are made with materials that can resist high temperatures and prevent fire spread. Most offer a 45-minute fire rating, while some increase it to two hours. Compared to the typical 20 to 90 minute rating for a double-pane window, glass block can increase your home’s safety in the event of a fire.

The Union, ME homeowners’ guide to glass block services

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

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