
Serving Concord, CA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Excellent service. Prompt, great communication and very fair price. Carefully replaced window glass. Highly recommended."





+9

*The Angi rating for Glass Block Window Service companies in Concord, CA 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 Concord, CA 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 August 12, 2026

Serving Concord, CA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Excellent service. Prompt, great communication and very fair price. Carefully replaced window glass. Highly recommended."





+9

Serving Concord, CA and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: True professional
"After dealing with frequent roof repairs, we finally decided on a complete replacement for our Livermore home. Avi kept us informed every step of the way, and the finished roof exceeded our expectations. It's made a noticeable difference during hot summer days."





+1
Serving Concord, CA and surrounding areas
In business since 1985
Free estimates
"Margaret did a wonderful job repairing our stained glass window. You can't even tell where the break was. I definitely recommend Margaret."





+5

Serving Concord, CA and surrounding areas
In business since 2017
Free estimates
Emergency services offered
"Installation completed in a little over an hour. Service person was a professional at his job. Area was protected from glass shards Inside and out of the house. I was satisfied with service."





+11

Serving Concord, CA and surrounding areas
In business since 1980
Free estimates
Credit card accepted
"I thought they were very positive. I liked them. I haven't had any window work done. I don't remember how much the cost was. They didn't do any work, so this is on their approach and bidding. I didn't use them because I haven't had the windows done. They did follow up and call me a couple of times, and I really appreciated that. I haven't decided and I am leaning in the direction of the contractor who came out to look at it; I just didn't get a bid from him. I would rather contact them if I decide to go with them."





+34
Serving Concord, CA and surrounding areas
In business since 1977
Free estimates
Credit card accepted
"There were great workers! They installed a new roof, did insulation inside/ fixed patched and put a window in the garage. There were quick, clean and the finished product was amazing! Definitely recommend their service!"

Serving Concord, CA and surrounding areas
In business since 1994
Free estimates
"It went very well! Aviv did an amazing job with the project ! He was extremely friendly and kept in touch during the entire process! I was skeptical because I just recently moved here but Aviv and Goodfellas Construction actually went beyond what I was expecting ."





+113

Serving Concord, CA and surrounding areas
In business since 2009
Free estimates
Emergency services offered
"They are very polite. They keep moving and get the job done. They go above and beyond. I thought they would be done with the windows by 4 pm, they actually were done at 6 pm, with adding little things on, and they didn’t charge me extra. They do a good job of hanging Christmas lights and usually have pretty good suggestions, based on what I want of where the lights should go and so forth."





+3

Serving Concord, CA and surrounding areas
In business since 2015
Free estimates
"We had some non efficient window panes replaced with energy efficient ones. Reza did a nice clean job and now the rooms are cooler."





+19

Serving Concord, CA and surrounding areas
Free estimates
Credit card accepted
"In addition to replacing all our windows in the house, we were starting a kitchen and masterbath remodel. The timing of the window install was crucial to coordinate with the remodel. We also wanted year end pricing, which was a substantial savings. We interviewed two companies and chose SGK. We would have interviewed a third company to be thorough, but it was impossible to find another company that did new construction installation that fit our time line. Rob Rowe (our salesperson) is an up front and "real" person. Did not come across as a salesman or try to up sell us like the other company's representative. The price was $8000 less than the other company for comparable windows (Anlin windows) and same type of installation.
Our goal was to have all the windows installed before our remodel started, but the installation date was delayed due to the rain. We were in contact with Deanne (not sure her actual title) at SGK many times to coordinate the installation and she spoke with our contractor to make sure the kitchen window was installed at the right time. In fact, SGK installed the kitchen and bath windows earlier than the other windows to coordinate with the demo.
This was the only real hiccup we had with the installation. When the bathroom windows were installed, the edge of the window and sills were cut back too far due to something with the flange (sp?) nails. This left a large gap between the window and the wood window sill. A couple of the gaps were filled with caulking and another left with the large gap. After discussion that this was not acceptable, a total of 3 window sills had to be replaced. They now look good. My take on this incident is that there was a lack of communication of why there were gaps when the windows were cut and it was not adequately communicated to us that the sills would be replaced at a later date (when the other windows were installed). There Quality Control person (Edward) was called in right away and he came by the house multiple times to ensure the installation was all done to our satisfaction. The foreman on the job was Francisco. Another worker named Manny was also very instrumental in making sure I was happy with the outcome.
I was assured that this would not happen moving forward and all the remaining windows were installed without incident. We are having to do some minor paint touch up around most of the windows since caulking is used around the drywall and sills. The windows are beautiful (as much as vinyl can be) and the wood trim that was all replaced looks great. It is primed and we still need to have it painted. The old windows had condensation and were drafty. The new windows have no draft and the house is noticeably warmer. All our neighbors are commenting on our new windows.
"





+9
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