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Verified Reviews for Glass Block Service pros in Winthrop, ME

*The Angi rating for Glass Block Service companies in Winthrop, 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 Winthrop, 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 Winthrop

Portland Glass of Millinocket

5.00(
1
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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 block windows last about 15 to 30 years, which is the same amount of time, if not slightly less, than standard windows. Standard windows last 20 to 50 years. You can extend the life of your glass block windows by resealing them every few years. Hiring a pro for installation is also key to windows that will function properly for years to come.

Glass blocks are much thicker than glass panes in traditional windows and serve as better insulators. The overall glass block window is sealed against drafts that allow warm or cool air to escape, saving on energy costs. Since this type of window is sealed airtight into your home, you don’t have to worry about air leaks and drafts as often as traditional windows that open and close. When installing glass block windows, look for options that are Energy Star rated, proving their energy efficiency.

If you like to be certain of your privacy at home, glass block windows might be your match. They offer privacy without preventing light from entering, while also providing enhanced security. Plus, they increase your home’s energy efficiency.

Glass block windows cost about $710 to install, ranging from $460 to $980. The cost factors of installing this type of specialty window include the opening size, design, layout, height, glass block type, installation type, and location. There are many block styles to choose from, including colored, clear, wavy, diamond, and frosted.

Consider the following price ranges of installing glass blocks based on size:

  • 25-by-25 inches: $60–$300

  • 31-by-31 inches: $65–$350

  • 36-by-36 inches: $85–$475

  • 48-by-48 inches: $155–$840

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.

The Winthrop, 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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