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*The Angi rating for Glass Block Service companies in Keystone, IA 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 Keystone, IA 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 August 11, 2026

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Residential Renovaters
New to Angi
Glass Blocks - InstallGlass Blocks - Install - For Business

Serving Keystone, IA and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"Residential Renovators is a dedicated team of insured professionals providing high-quality home transformations. We specialize in stunning epoxy flooring, full custom remodels, licensed electrical work, and precision-fit window and door installations. We handle every project with professional care, clear communication, and impeccable results. Choose us for superior skill across multiple trades—from a complete kitchen redesign to a durable garage floor. We provide reliable service and beautiful craftsmanship. Contact Residential Renovators today for a free estimate."

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

Serving Keystone, IA 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 Innovative Designs
Innovative Designs
0.0(
9
)
Glass Blocks - Install

Serving Keystone, IA and surrounding areas

In business since 2000

Innovative Designs has over 15 years experience in custom creative remodels and New Custruction/Custom Homes. We are extremely client focused to create the vision you have for your home using the highest quality craftsmanship and materials for all you home improvement needs. Whether you want a custom deck, porch, patio, walk and steps, general renovations or repairs, we pay great attention to each and every detail with beautiful moldings and trims, gorgeous hardwood floors, beautiful new kitchens, bathrooms, or turning your basement into the recreation room you have always wanted.

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Glass Block questions, answered by experts

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 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. 

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.

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.

The Keystone, IA 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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