"Suburban Construction installed my windows. They certainly know how to bring the picturesque scenery outside in the inside of the home, thru windows. Suburban Construction is the best." » more
- Barbara J. Hartman of Rock Island, 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

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