Roofers List Grid Map We have found 1 items matching your search. DHI Construction Roofing 11420 Spur Wheel Lane, Potomac, MD 20854, USA Get Directions | Listings Nearby distance: 26 Miles Get Directions Listings Nearby Change Location 240-654-4039 DHI is no ordinary roofing contractor in Maryland but one of who is a specialists in complicated roofing repairs. Add Favorites Details 1 Page 1 of 1