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

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

Last update on May 31, 2026

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Avatar for Hampton Enterprise LLC
Hampton Enterprise LLC
3.7(
9
)

Serving Roundup, MT and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"I only use James when I need some work done to my house. He responds fast, gets the work done quicker than just about anyone else I've ever used and seems very concerned with leaving his customers happy."
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Recommended by60%of homeowners
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Allen's Siding & Windows, Inc.
New to Angi

Serving Roundup, MT and surrounding areas

In business since 1988

Allen's Siding & Windows, Inc., is a Full Service,Owner Operated Company for over 17 years in complete exterior home improvements from custom design additions, sunrooms, patios, and decks to complete siding and window installations and repairs as well as all exterior window treatments including custom shutters and awnings. We specialize in ALSIDE ULTRAMAX Windows, which have been energy star partner for 3 years running. We work with you from start to finish with complete client focus, and professional personalized service giving superior craftsmanship with attention to each detail to ensure we create the vision you have for your home. Hire The Contractor not a Salesman. Please see our website at www.sydngys.com

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Glass Block Windows questions, answered by experts

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. 

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

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.

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

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.

The Roundup, MT homeowners’ guide to glass block window services

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

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