What are the pros and cons of glass block windows?

<div>Installing <a href="https://www.angi.com/articles/what-are-benefits-glass-block-windows.htm">glass block windows has benefits and disadvantages</a>, as with most materials. The pros and cons can vary depending on the type of glass block and the window location.Pros<ul><li>Maintains privacy while letting light into the bathroom</li><li>Energy efficient</li><li>Sealed to prevent drafts</li><li>Aesthetically pleasing</li><li>Strong and secure</li></ul>Cons<ul><li>Costly to install</li><li>Challenging installation</li><li>Challenging repair</li></ul></div>

How much does window replacement cost?

<div><a href="https://www.angi.com/articles/how-much-does-window-replacement-cost.htm">Window replacement costs</a> between $180 and $410 per window, or an average of $280 per window. However, your specific replacement job could cost as little as $100 or as much as $750. Factors such as frame material, the number of windows you need, and the type of glass you order all impact the overall cost. For example, simple double-glazed windows will cost $3 to $6 per square foot, but the stronger tempered glass ranges from $12 to $14 per square foot. </div>

How much do glass block windows cost to install?

<div>The <a href="https://www.angi.com/articles/what-are-average-glass-block-prices.htm">average cost to install glass block windows</a> is about $710, ranging from $460 to $1,000, depending on the size and design of the window, installation type, and location. Different styles of glass blocks also impact the cost:<ul><li>Clear glass blocks: $10–$30 per block</li><li>Colored glass blocks: $25–$40 per block</li><li>Acrylic glass blocks: $15–$25 per block</li><li>Wavy glass blocks: $10–$30 per block</li><li>Alpha glass blocks: $15–$25 per block</li><li>Ice glass blocks: $20–$35 per block</li><li>Diamond glass blocks: $20–$75 per block</li><li>Frosted glass blocks: $30–$35 per block</li></ul></div>

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Verified Reviews for Glass Block Window Service pros in Knowlton, NJ

*The Angi rating for Glass Block Window Service companies in Knowlton, NJ 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 Knowlton, NJ 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 02, 2025

Reviewed in October 2007
Excellent job. It was done quickly and professionally. My home is no longer the ugliest house on the block.
CREATIVE HOME IMPROVEMENTS
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Reviewed in February 2017
The service was great. The installers were able to remove the steel frames embedded in the concrete walls without damaging the foundation or breaking any old glass and install the new vinyl windows. When it come time to replace the remaining windows in the house, I will definitely call Tri-State...
Tri-State Window Factory Corp
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Reviewed in August 2013
Originally they were to be installed on 8/1 but Ron called early to let me know that the rain would not allow it so it was put off until the 12th. Ron called early on the 12th to say that they (Carlos and Nelson) would be there between 10 and 11 depending on the traffic. I was surprised because...
Eastern Glass Block Corp
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Reviewed in June 2017
It went fine. I had to order the part, which I was able to do. He was very professional and knew what he was doing. He was in and out.
Markey, Windows, Doors, & more LLC.
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Reviewed in April 2018
Love the windows, they do the job. The sound reduction works well too. The heat mirror is a great feature and does a good job blocking the afternoon sun. Mark the salesman was great and worked with us to finance the job.
Peoples Products - HR40 Windows
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Reviewed in December 2016
Champion replaced our siding and windows and we couldn't be more pleased. The project went smoothly and was completed on-time and on-budget. The siding and windows look great and now we have the best looking house on the block.
CHAMPION HOME REMODELING
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Reviewed in June 2012
Description:The job was done professionally. We are very satisfied. Old windows and glass blocks were removed and new windows installed without any problems. The whole job was done in one day as promised.
Power Home Remodeling
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Reviewed in August 2014
The work they did was fine. The product is OK. I have had one issue with the handle. I didn't call them because I had to block their number. They called me so many times to harass for more business I blocked them and would not use them again. I had more work done on my house this summer and...
Power Home Remodeling
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Reviewed in September 2009
It went very well. The work was done neatly and efficiently. The only hitch was with the door because the factory closes for a period of time in the summer and my oddly sized door took a long time to be manufactured. Steve, the installer worked dilligently to give me the best installed and best...
Major Homes Corp
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Glass block window services FAQs

If you have a problem with your window, such as broken glass, minor leaks, or a problem with your window being stuck, repairing the broken part might be a cheaper option than replacing the entire window. However, if you have a deteriorating window frame or major leaks, buying a new window will be the better long-term solution.

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

Window replacement costs between $180 and $410 per window, or an average of $280 per window. However, your specific replacement job could cost as little as $100 or as much as $750. Factors such as frame material, the number of windows you need, and the type of glass you order all impact the overall cost. For example, simple double-glazed windows will cost $3 to $6 per square foot, but the stronger tempered glass ranges from $12 to $14 per square foot.

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.

The average cost to install glass block windows is about $710, ranging from $460 to $1,000, depending on the size and design of the window, installation type, and location. Different styles of glass blocks also impact the cost:

Clear glass blocks: $10–$30 per block
Colored glass blocks: $25–$40 per block
Acrylic glass blocks: $15–$25 per block
Wavy glass blocks: $10–$30 per block
Alpha glass blocks: $15–$25 per block
Ice glass blocks: $20–$35 per block
Diamond glass blocks: $20–$75 per block
Frosted glass blocks: $30–$35 per block

The 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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