"Bob, We wanted to drop a note to let you know how much we appreciate the work that was done at our home. The Gutters, windows, siding and doors all look great and are exactly what we wanted. Eve... » more
- Don and Sherrie Frieden of Muscatine, Iowa


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Extension Unit

A framed fixed door panel, with a full-sized lite of glass, field-installed or shop-installed adjacent to a two-panel patio door, to make the door unit into a three-panel door.

Not quite sure what the proper home improvement terms are? Let us help. We have put together a glossory for you to learn a little bit more about Home Improvement Glossary and Terms

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