Best glass block pros near Frederick, PA

"When we picked up the glass yesterday evening, we noticed one of them was wrong size (the glass was less half size of our table). 
They came in today and measured the table again.
Mistakes happens.   They acknowledge it and move on remediating it.  Great company
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"It took me almost 2 years to find a contractor to do glass block in a basement window well where water was coming in. I found D. Karpel Construction thru Angi.com. Mr. Karpel contacted me within 1 hour. A superior contractor. Figured out the problem and in less than 2 days had the job done. A job extremely well done. He is very highly recommended."

"She has made stained glass window hangings."

"They are awesome! Very efficient."

"I sent a picture of the broken glass around 8:30. They were at my house around 11:15 and done by 11:45. Great job including clean-up. I really couldn't be more satisfied."

"Truly amazing Business, 100% Recommended They were able to come out the same day i called and took care of my sliding doors problem without any issues."

"Dan and his son are an absolute dream come true and no one in our family will ever hire somebody else. Are basement was completely unfinished, and in fact had a lot of our junk all over, and Dan was able to listen carefully to our ideas and thoughtfully make recommendations as to what would work best. The end result is honestly so much better than we ever imagined. Our kids now spend a lot of time in the basement playing games and making memories. We could not be happier with our decision to trust Dan, and in fact we miss seeing him like we did during the project! After finishing our basement, all of our friends asked who was able to do such a good job, and subsequently we've referred Dan and his son to our in-laws and also our good friends for major projects. Look no further, this is the team you are trying to find!"

"He told me how to do the job"

"Arrived on time and worked well with painters who were also working in bathroom.
Excellent job in bathroom and with rewiring. New breakers not labeled, but labeling was fixed on return trip.
Returned to house late in evening to identify a thrown breaker and restore electric to kitchen. Very responsive!"

"I dealt with Darin for these projects. The one thing that stood out was the professionalism. Right from the start we knew the dates of the projects and were kept in constant communication. The work was done well and everyone was very respectful. These weren't huge projects but we were still treated as if we we're an important customer. I would highly recommend them and use them again!
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