"Suburban installed our new windows. This is the 4th job they've done for us. We like the excellent work they do... that's why we keep coming back to them. We don't even bother looking anywhere e... » more
- Jeff and Cheryl Yates of Bettendorf, Iowa


» More Testimonials

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

For furthur reading please see our Learn the Basics Homepage.