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Ply Gem - Cornerstone Building Brands

Ply Gem - Cornerstone Building Brands

Ply Gem is an industry leader in windows and patio doors, vinyl siding, stone veneer, and metal accessories for homes. Limitless color, design and texture options allow you to create custom curb appeal while maximizing the comfort of your home. Ply Gem is a part of Cornerstone Building Brands' residential building solutions. Visit our site to learn more about our extensive product offerings.

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Larry R.

Review of Kieffer's Appliances (Trade Partners) by

· Rockville

Dustin is one of the best reps we have ever had!

Parikh M.

Review of Cunningham's Rug Cleaning by

· Laurel

Cunningham's Rug Cleaning has saved several treasured oriental carpets from our equally treasured puppy! Without their fine work, we would have likely thrown the rugs out. And their prices are incredibly reasonable. Thank you Cunningham's, and your cheerful, professional staff!

Phillip V.

Review of Kohler Bathroom Design Service by

· Fairfax Station

What a great experience we had with our designer, Patti. Going in, we had good ideas, we thought but, Patti helped us visualize them and turn them into a much better design. In the end, we were able to get a photo-realistic design of our new bathroom as if it were already completed. Highly recommend... more

Bruce H.

Review of Morgan Exteriors, Inc. by

· Baltimore

I wouldn't hesitate to use them again.


What is the temperature range for installing roof shingles
Dec 30, 2016
In order for shingles to sit and form properly, it should be at least 36 degrees fahrenheit (2.2 celsius) outside when laying shingles. 
black spots on the roof. can you tell me what is the cause of this? have lived in this house 12 years and have had no problems. what can you do to clean this?
Oct 18, 2014
This type of staining (algae as the other posters have said) will usually only happen on the North facing surface of the roof.  Same with condensation on your car glass.  Suprisingly, the North facing ... read more

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Ply Gem - Cornerstone Building Brands

91 Variform Drive,
Martinsburg, WV
https://www.plygem.com/ (304) 263-7766