"Suburban Construction recently installed new siding & windows on our home. The job was completed as promised, and all old materials were cleaned up promptly. We would recommend Suburban to a... » more
- Bon and Donna Gulley of Milan, Illinois


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Mull

A short term for mullion. Used occasionally as a verb to describe the joining of two door or window units together, or the joining of a door to a sidelite unit.

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.