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Verified Reviews for Glass Block Window Service pros in Roundup, MT

*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

Find Glass block installation pros in Roundup

Avatar for Hampton Enterprise LLC
Hampton Enterprise LLC
3.7(
9
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

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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Avatar for Yellowstone Valley Contractors
Yellowstone Valley Contractors
4.5(
1
)
Glass Blocks - InstallGlass Blocks - Install - For Business

Serving Roundup, MT and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"Friendly, great service. They make sure the quality and the job is done right."
Response time3 hrs
Recommended by100%of homeowners
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Allen's Siding & Windows, Inc.
New to Angi
Glass Blocks - InstallStained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

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

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.

You can still see vaguely into some types of glass block windows at night. Although there won’t be clear definitions, passersby may still see shapes, shadows, and movement through the glass. If you want complete privacy, consider installing diamond glass block windows rather than the typical clear or wavy glass blocks.

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

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

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

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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