Our latest custom projects for Maryland and Virginia

Design Builders continues to be a premier builder of screened porches, decks, and outdoor kitchens for Maryland and Northern Virginia.  Take a look at our latest projects, featuring 2 screened porches in Bethesda, MD, an all season room in Potomac, MD, and a screened porch / patio in Upper Marlboro, MD.  Infrared heaters, gable ceilings, flagstone, Sunspace Windows, Eze Breeze Windows, horizontal sliding screens, exterior lighting, and much more.  

Design Builders is not a cookie cutter 12X12 decking company.  We create unique outdoor living spaces. See something you like?  Reach out to us and see what we can do for you!

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Potomac, MD Screened Porch 


  • Eze Breeze Windows
  • Infratech Infrared Heaters
  • Azek Decking
  • Anderson French Wood Hinged Patio Door
  • Vaulted Gable Roof
  • 22 X 16 Porch

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Bethesda, MD Flagstone Patio


  • Infratech Infrared Heaters
  • Eze Breeze Windows
  • Shed Roof Flat Ceiling
  • Fireplace
  • Used 24 X 13 Existing Flagstone Patio
  • VIDEO!

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Upper Marlboro Screened Porch


Upper Marlboro, MD Screened Porch


  • Sunspace Windows with Horizontal Screening System
  • 18 X 16 area with Lava Horizontal Underdecking
  • Flagstone Patio 
  • Infratech Infrared Heaters
  • Exterior Safety Lighting
  • Trex Transcend Outside Decking
  • Video!

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Bethesda, MD Screened Flagstone Porch 


  • Flagstone Patio Floor
  • Eze Breeze Windows and Screens
  • Infratech Heaters 
  • Hip Roof
  • Ceiling Fan
  • 16 X 18 Porch

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