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TRUSTED BY KETTERING, MD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon524
    Verified glass block window services reviews

Top-Rated Glass block installation pros in Kettering - Updated Nov 2026

Avatar for A.R. Glass Repairs
A.R. Glass Repairs
5.0(
22
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Kettering, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"A. R. Glass did a fantastic job. Instead of having to replace my windows, they were able to come in and replace the glass for considerable savings. I would definitely have them come again. In fact, I had them come for a second job already."
Response time1 day
Response rate100%
Recommended by85%of homeowners
Avatar for Glass Impressions
Glass Impressions
4.8(
23
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Kettering, MD and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"Glass Impressions did a wonderful job of cleaning all 19 windows in our home, inside & out, including the inside sills, screens and also 2 glass storm doors. Mr. Waters and his team are very good at what they do. They were very reasonable. I plan to use them again, as needed."
Automotive
Residential
Commercial
Recommended by100%of homeowners
Avatar for Cali Home Improvement
Cali Home Improvement
4.9(
4
)
Glass Blocks - Install - For Business

Serving Kettering, MD and surrounding areas

Approved

In business since 2014

Free estimates

Small jobs welcome

"Mr Serapio was very professional and he took the time to answer my questions regarding the condition of my Gutter before proceeding. He was punctual and work to complete the job in a timely manner. I would highly recommend him to others."
Response time10 hrs
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Advanced Glass Designs™, LLC
Advanced Glass Designs™, LLC
5.0(
4
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Kettering, MD and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"I called Advanced glass on monday the 7th for a quote for my newly remodeled bathroom. I spoo to Sam over the phone and he gave me a quote how  much approximately it'd cost. The price was reasonable so I requested an appointment to do the measurment. after that Youness came over the next day he took the measurment and gave me the final estimate of $1175, I approved the quote and payed the deposit right away. On the 17th the installers (i guess one of them was albert) came to my house and install the glass shower door in about one hour and a half, and they told me to not use the shower for 24h. Now i'm using the enclosure and it's fine with no issues. the only thing is when i open the door, the water drops from the door, but i guess that has nothing to do with the job they did.
"
Corner shower door
Custom Angle Sower Door
Neo-Angle Shower Door
Recommended by100%of homeowners
Royal Glass Company
4.9(
13
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Kettering, MD and surrounding areas

In business since 1971

Free estimates

Credit card accepted

"oThis was a great experience start to finish. The price is solid, beating out my insurance company's provider by a good $80 - $100, the work was scheduled and performed quickly and the windshield looks good.
I used the $25 off coupon I printed  from Angies list without a problem, which brought the cost from 255 down to 230.
My insurance company's placed wanted $298 plus tax plus $29.95 to come out
to me to fix it. Royal did all that for the flat $255.
Definitely would use them again if I needed to replace any of my car's glass.
"
Recommended by100%of homeowners
Glass Window Door Repair & Replacement by BWD
4.5(
40
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Kettering, MD and surrounding areas

In business since 1978

Free estimates

Emergency services offered

"William from Boston Windows was exceedingly professional and up front. I called him for a quote to replace the windows in my townhouse. He was able to come to my house the next day to take measurements. He has been doing installations since he was 16 and had alot of knowledge. Prior to the visit, he had me send some photos of my windows to try to gage the price of the job better as well. Long story short, Mr. Boston tried to price match one of my quotes for me, but there ended up being a problem with the way my windows were cut in the townhouse on the outside, which would have increased the cost of the job by several hundred dollars because he has to pay staff to do it (vs. the other company, whose labor is all in-house). In other words, he couldn't match the price after all because I was already offered a discount from the other company and the job was so complicated. The other window companies would not have paid attention to the level of detail Mr. Boston had specified, but I ended up making my decision due to budget reasons. Mr. Boston even went and looked at my neighbor's windows to compare the architecture (since town houses are supposed to be built the same). Mr. William did not pressure me in a sale like some other companies and was up front about the cost and what I was going getting myself into if I went with X, Y, or Z. He told me flat out, that if the other similar company could keep everything in-house and could cut me a really good deal, I should go with them. Because of that, I really appreciate it. I would recommend giving BWD windows a chance if you are on the market for windows; he will try his best to work with the prices, being a one-man shop. If you have a really complicated job that would significantly affect the functioning of your house however, I would also recommend having his expertise on the job. I will be calling him if I ever need a repair on a window or door down the line."
Recommended by91%of homeowners
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Glass Block Windows FAQs, answered by experts

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

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

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.

Glass block windows aren’t fire hazards; fire-rated glass block windows can increase your home’s fire safety. Modern glass blocks are made with materials that can resist high temperatures and prevent fire spread. Most offer a 45-minute fire rating, while some increase it to two hours. Compared to the typical 20 to 90 minute rating for a double-pane window, glass block can increase your home’s safety in the event of a fire.

The Kettering, MD homeowners’ guide to glass block window services

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