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*The Angi rating for Glass Block Service companies in Whitehall, MT 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 Whitehall, MT 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 July 11, 2026

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

Serving Whitehall, 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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Ancient Art Custom Tile
New to Angi
Glass Blocks - Install

Serving Whitehall, MT and surrounding areas

In business since 2004

Ancient Art Custom Tile owner operator Jim Mastrangelo has been doing custom tile work for many years. He has been servicing the Helena metro area for over 4 years. Jim takes pride in the consistent quality craftsmanship he provides. His expertise is second to none and you can see that in the details. \n\nAncient Art Custom Tile welcomes the opportunity to show you what experience, expertise & quality products can mean for the value of your home. Ancient Art Custom Tile does the work correctly�we know in the long run your unconditional satisfaction is all that really matters. \n\nDon't hesitate to contact us today to set up a time to meet. We look forward to speaking with you.\n

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Allen's Siding & Windows, Inc.
New to Angi
Glass Blocks - InstallStained or Specialty Glass - Repair

Serving Whitehall, 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 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. 

Luckily, glass block windows need minimal maintenance. Other than regular cleaning, the only maintenance involved in having a glass block window is inspecting for cracks every year and applying sealer to the mortar joints if the blocks are set in masonry mortar. Glass block windows hold up well against wind and moisture better than traditional windows and are not prone to rot.

Installing glass block windows has benefits and disadvantages, as with most materials. The pros and cons can vary depending on the type of glass block and the window location.

Pros

  • Maintains privacy while letting light into the bathroom

  • Energy efficient

  • Sealed to prevent drafts

  • Aesthetically pleasing

  • Strong and secure

Cons

  • Costly to install

  • Challenging installation

  • Challenging repair

Glass block windows typically last for 15 to 30 years, which is slightly less than the 20- to 50-year lifespan of standard windows. You can extend their life by resealing them every few years. Professional installation is also key to ensuring the windows are placed correctly and will function properly for years to come. A professional installer will have the necessary skills, tools, and knowledge to install these features and can identify potential issues like damaged frames or cramped areas during a consultation.

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 Whitehall, MT 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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