They did a great job! They were polite and arrived promptly at 8 am. After they left, I thought the lights were on because it was so bright inside after Luis and crew cleaned all the skylights!
-Kelly F., Washington, DC

Yon and Nangex were great – very thorough, methodical, careful and efficient. PLUS: Jon helped me capture and release a poor little baby bird that my cat had brought inside to play with. They did a great job.
-Joyce M, Washington, DC

They were spectacular, and I have already recommended Dr. Glass to family members. I did not realize they had replaced the screens already, because they were so clean! This was due to the team leader – I believe his name is Nelson. He was outstanding and not satisfied until everything was perfect.
-Elisha K., Washington, DC
The team that cleaned the windows and siding did a great job. In fact, our neighbor was so impressed that she asked for a coupon. We will definitely be calling you all back next spring!
-Bob C., Rockville, MD

I wouldn’t dream of allowing anyone other than Nelson and his team to touch our windows. Not only is he exceptionally careful and polite, but I’ve really appreciated his help and advice with respect to the proper care of our window screens. I’ve recommended him to several neighbors!
-Peggy S., Silver Spring, MD

Your team was on time, polite, very careful! The windows look great and I trust then to take care around our fragile furnishings. I am happy to refer others to you.
-Lydia M., Washington, DC
Oh my gosh! Your team is TERRIFIC and I cannot recommend you enough to anyone who asks. They were not only prompt but early. In and done carefully and thoroughly as I always expected them to be. This year they also had to do our windows in the apartment downstairs…crawling under our raised deck to do so…with a nice smile on their faces. How pleasant it is to work with you guys. ALWAYS and through the years. Pricing – EXACTLY as expected and always found reasonable. Excellent all around.
-Ben B., Chevy Chase, MD

The team was on time, very efficient and careful. They adjusted the price to match the actual number of windows – less than the phone estimate. We really appreciate our clean windows!
-Dan S., Washington, DC

Everything was fine as usual. I appreciate your high standards of courtesy, promptness and professionalism.
-Steve S., Takoma Park, MD
William did an extra superb job of cleaning our complex windows. They are sparkling clean. He is the best ever! Please send extra business cards. I will pass the word along. The price is very reasonable. William was on time. He was very professional and respectful and gave the impression that he was all about doing a great job… which is what he did! He exceeded all of my expectations. He is excellent. I cannot say enough about the quality of the work he did.
-Beverly A., Washington, DC

Thanks so much for your wonderful service again, as always. Your staff was courteous and on time. Many thanks for everything.
-Sheerin H., Chevy Chase, MD

I am completely satisfied with my window cleaning. Because the team was stuck in traffic at arrival time, they called ahead to explain and keep my informed of when they would arrive. They were very friendly, polite and professional and careful of my furniture and window blinds. This is my 3rd or 4th time using your services and I have always been satisfied with the work. I will and have recommended Dr. Glass to my friends.
-Barbara S., Gaithersburg, MD
The team arrived early. They were very respectful of us and the property. The windows look great inside and out, and the team leader told us that there was a problem with one of our windows, making it cloudy. We were aware of this problem, but it was good that he also pointed them out. They only moved things as needed, and everything went back perfectly. They carried storm windows for me to a basement area, after I brought up screens, which was considerate. They were efficient and seemed to work well as a team. They cleaned up after themselves quickly. The team leader went over pricing with me and discussed it very clearly and reasonably. He was very pleasant and low-key but was in charge in a good way. Thanks to the team.
-Margaret F., Silver Spring, MD

The team came and we located all the windows that were to be cleaned. Then they immediately got to work. The head of the team was very respectful and efficient. I was extremely happy with the service.
-Mary R. , Silver Spring, MD