What customers wrote to us over the last 28 years

“Doing business with your company has been a real pleasure. You can be enthusiastic about having John D. as your sales manager. He is very polite and practices his business dealings with profession. Rocky installed our window and did a super job. Very neat, felt he expressed joy in doing his work well. Rocky went the extra mile to clean the window after completing the installation. With a team like this, it will be a pleasure to share your work with our friends. Thank you for being a company we can count on.”
Ken & Marianne L.
Ronks, PA
June 1985

“I couldn’t believe the difference this winter when I would touch my old ones and then touch the new ones. Yours were so much warmer and really airtight. If you ever need a reference you can call on us. Looking forward to getting the rest installed. Thank you.”
Paul B.
Annville, PA
May 1989

“They are worth every penny.”
Andrew B.
Bethlehem, PA
May 1993

“The installer was great and our new door is breathtaking!”
Tom & Sandy D.
Downingtown, PA.
November 1994

“I’m amazed at your worker’s neatness, efficiency and work ethic. Thanks.”
Dr. Richard R.
West Chester, PA
January 1995

“I am delighted with my windows! Ken is a true professional. It was the most rewarding experience ever of all the many different projects we’ve had done to our home. Keep up the good work!”
Shirly B.
York, PA
April 1996

“A special thank you goes out to our installer and his crew. Bill was perfect in every way – he kept close communication by notes and phone calls everyday. What a guy! Bill and his crew were very professional, neat & clean. By far they are the best! They took their time & worked on our home as if it were their own. If anyone needs windows etc. we will surely recommend your company. Thanks again to Allen, Bill and Bill’s crew – Thanks Guys!”
Rose S.
Middletown, PA
October 1996

“Thank you for the professional meeting with us and installation. We are very pleased.”
Cheryl O.
Stevens, PA
August 1997

“Bill was courteous and pleasant. He did not act as a stuffed shirt. He answered all of my questions immediately, and he didn’t act like I was interrupting him. He is an asset to your company.”
Georgiane H.
Lancaster, PA
September 1997

“I was very impressed with the pride the serviceman had in his work. He did an excellent job on both occasions. In these times, it’s very hard to find a company such as yours. I would recommend your company very highly to my friends.”
Marge R.
Elverson, PA
May 1998

“I love the windows and the service was great. I will be purchasing 7 more windows in the future.”
Sue-Ellen M.
Valley Forge, PA
April 2000

“The two days that bill and Corey installed the windows were brutally hot. These men worked incredibly hard. They will install the bay window coming next. Was happy to clean the windows myself; what a joy!”
Lorri F.
West Chester, PA
August 2000

“You guys and gals are great! Very nice job with installation! I would recommend you to all!”
Sue T.
Exton, PA
April 2001

“Thermal Sash is the best window company on the planet…and I have used two other companies in the past”
Ruth D.
Mt. Pocono, PA
January 2006