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TRUSTED BY CORNWALL, NY HOMEOWNERS

  • Average homeowner rating star icon3.8
    Average homeowner rating
  • Verified reviews icon105
    Verified glass block window services reviews

Find Glass block installation pros in Cornwall

Grady's Painting Plastering/Construction
2.0(
174
)
Stained or Specialty Glass - Repair

Serving Cornwall, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I needed stucco repair work on an old chimney (and other spots). Grady was meticulous and thoughtful on what approaches and materials would work. Throughout the project they allocated sufficient time for each treatment to cure and inspected the work before proceeding to the next step. Grady started the project with no money down and only required ongoing payments for materials until the project was well underway. The final payment was due only after they did a final inspection. Total project cost was also below other bids."
Response time11 hrs
Response rate100%
Recommended by57%of homeowners
Avatar for Best Glass LLC
Best Glass LLC
4.7(
14
)
Glass Blocks - InstallGlass Blocks - Install - For BusinessStained or Specialty Glass - Install or Replace+1 more

Serving Cornwall, NY and surrounding areas

In business since 2020

Credit card accepted

"I had a fantastic experience with Fernando's company, Best Glass, LLC. Both Fernando and his wife were incredibly polite and efficient. Arriving on time installed my bathroom shower glass door in under two hours, and the end result is absolutely stunning. Fernando's attention to detail was incredible I appreciate their thoroughness and professionalism not to mention FAIR rates … Best Glass, LLC. Highly recommended!"
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+2

Recommended by100%of homeowners
Avatar for SAN FRANCISCO GLASS
SAN FRANCISCO GLASS
5.0(
9
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Cornwall, NY and surrounding areas

In business since 2019

Free estimates

"They installed some mirrors in my home and it was amazing. They were fast, efficient and polite. They explained the process step-by-step and showed me the material they were using before hand. They scheduled their appointment promptly after calling and arrived 15 minutes before arriving. The quote was free."
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+20

Recommended by100%of homeowners
Avatar for Terraza Stained Glass
Terraza Stained Glass
4.7(
7
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Cornwall, NY and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"We needed a repair of a leaded glass side light. Terraza was very efficient and professional and quick to give us an estimate. They removed the panel, and returned the very next Saturday with a perfect repair which they installed. We met Donna and her husband who did a terrific job. I hope our dog Jeff who made this repair necessary when he tried to attack the mailman from inside the house never does this again. If he does we will get to see Donna and husband again and Jeffs milk bone treats will be reduced."
Restore and Expand Installed
Victorian Peacocks
Restore and Expand
Installed Peacocks
Finished stained glass before insulating

+18

Response time1 day
Recommended by100%of homeowners
Avatar for Castle "The Window People"
Castle "The Window People"
3.5(
172
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Cornwall, NY and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"Made an appt. with Castle Rep, James, for 17 windows and vinyl siding. He spent 1 hour talking about how great his company and windows are before finally getting down to the issue. We were told that CASTLE makes and services their own window, with all the best technology and technicians available. The price per window for energy efficient came out to over $1,200 per double-hung window! And since they make their own products, we could not find a way to compare quality and price with other manufacturers. But his per-window price exceeds the average price of $500-700 by A LOT! When we balked, he made a call to his "manager" to see if we qualified for a "special promotional" discount. If we were to commit right there on the spot, we would get an additional 10% off! Still way to high. We said we would think about it (he got sad and snippy), and that we wanted to hear about the vinyl siding quote before we made any decisions. He told us he could not give us a siding quote until his company did an "eagle view" measurement, which would require another appointment! We had no intention of sitting through ANOTHER high-pressure appointment. High pressure, long-drawn out presentation and he would not leave us with anything in writing! No brochures, prices, nothing! He refused to put anything in writing and we could not have a break down of labor and costs. I even asked him if I could have a copyhh of the window warranty and he said "only if you purchase right now." And they did not come prepared with references or previous job locations! When we further researched the company, we found they did make very excellent products, but the #1 complaint was by far that they did not honor their lifetime warranty and that customer service was horrible. In the end, we chose not to do business.."
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Recommended by70%of homeowners
Full Circle Glass Studio, Inc.
3.7(
15
)
Stained or Specialty Glass - Install or ReplaceStained or Specialty Glass - Repair

Serving Cornwall, NY and surrounding areas

In business since 1976

Free estimates

Credit card accepted

"Stained or Specialty Glass Frank made a beautiful hanging window as a wedding gift for my husband and I of clear glass with diamond patterns and intricate design. It was a conversation piece in our home. Unfortunately, I do not have a picture of it, but it was a truly treasured piece of art. Thank you Frank!"
Recommended by88%of homeowners
Peters Glass
4.5(
1
)
Glass Blocks - Install

Serving Cornwall, NY and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"they were very good at what they did, the older man knew his stuff and was very polite and a younger son also knew what he was talking about and also was very nice. The wife behind the desk was very polite and funny and good to talk to, I would absolutely do work with this business again top notch company. Don't let the size of them scare you away, even though they are small I will use them over any big glass company around hands down. They are clearly is the best in my opinion"
Response time1 day
Recommended by100%of homeowners
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Glass Block Windows 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. 

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.

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.

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

Yes, many professionals provide custom-cut glass replacements for enclosures that require precise sizing.

The Cornwall, NY homeowners’ guide to glass block window services

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