Voted Best Remodeler by the readers of Arlington Magazine


Want a second story or other addition for your home while cutting time in half and cost by 10-15%? A custom-designed modular addition may be your answer. Here’s how it works:

  1. Our in-house design team works with you to develop a design you love and select all fixtures and finishes.
  2. Experts at a specialized factory in Pennsylvania assemble your custom modules — following our exact specifications. No weather delays, missing materials or subcontractor issues — so construction flies!
  3. Once the modules arrive at your home, a crane lifts the pieces into place and Winn Modular’s construction team takes over.
  4. Instead of being out of your home for 2 months, you might be back in 2 weeks.

Modular is a great approach for: second-story additions, master suite additions, expansions and bump outs, detached and attached garages, nanny and in-law suites, and more.

Regions We Serve

Virginia (VA): Alexandria, Annandale, Arlington, Falls Church, Fairfax, Great Falls, Herndon, McLean, Oakton, Reston, Vienna

Maryland (MD): Bethesda, Cabin John, Chevy Chase, Glen Echo, Kensington, Potomac, Rockville