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PENWIN Windows & Doors

Penwin offers premium windows, doors, and siding, installed by licensed professionals, and covered by one of the most comprehensive product, service, and installation warranties in the industry.

Penwin has been serving the metropolitan area, and all of Maryland. We pay very close attention to detail and will be the best choice you can make when it comes to getting new windows, doors and siding on your home.

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We display two types of written homeowner feedback on GuildQuality member profile pages: Comments and Reviews.

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In response to our customer satisfaction surveys, homeowners share lots of comments about construction quality, communication, or any other question asked in the survey. Guildmembers can selectively publish these comments here on their profile page.

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Answers from contractors near Clinton, MD

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
What type of additions can be done to the back of a townhouse attached on both sides in Washington, DC
Sep 2, 2014
You will need to contact the DC Zoning Department to get information regarding your property setbacks. Once you get the information on restrictions or limitations in your area there can be a few ideas ... read more
Last edited Apr 29, 2015 5:32pm

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