"I had all new windows put in my house. I also had two new doors installed. I'm very please with the results. Suburban Construction has nice people to talk to and people that are easy to work with. I ... » more
- Mrs. Erma Ziegler of Silvis, Illinois


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Substrate

The base or core material in an assembly of parts. In sills, the full length wood or composite part of the sill, visible only from the bottom side, or ends.

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