Design Builders has been evaluating existing decks across Montgomery County, MD and Fairfax County, VA since 2006, and the question comes up on nearly every screened porch consultation: can we just build on top of what's already there? The honest answer is that it depends — but the factors that determine the answer are specific, and most homeowners don't know what they are before they sit down with a contractor. For a complete picture of what goes into a proper screened porch build from the ground up, see our Definitive Guide to Luxury Screened Porches in the DMV.

Screened porch pricing in Montgomery County, MD and Fairfax County, VA is shaped by more than square footage alone. Foundation type, permit path, material grade, and site conditions all drive your final number — sometimes more than the porch structure itself. Design Builders has been designing and building screened porches across Fairfax, Montgomery, Loudoun, Howard, and Anne Arundel counties since 2006 — navigating county-specific permitting, helical pier foundations on difficult lots, and luxury material selections on hundreds of completed projects. That depth of local experience is what informs everything in this guide. Before you budget, read our complete county-by-county planning resource: The Definitive Guide to Luxury Screened Porches in the DMV, where we break down design options, structural choices, and permitting realities in full.

Design Builders has been installing screened porch screening systems across Montgomery County, Maryland and Fairfax County, Virginia since 2006, and the fixed versus retractable decision is one of the most common questions homeowners ask during the design process. As an authorized installer ofSCREENEZE fixed screening systems and Phantom and Mirage motorized retractable screens, Design Builders works with both technologies on a daily basis — which means the recommendation is based on actual installation experience, not a sales preference for one system over another.