Best Hauling in Keymar, Maryland. Top 30 Hauling in Keymar, Maryland, ranked by rating, reviews, votes. Last updated on November 2024 . U-Haul CO Keymar, Maryland Hauling Detail Address: 1021 Francis Scott Key Highway, Keymar, Maryland 21757. Phone: (410) 775-7252. Website: www.uhaul.com. Categories of builders in Keymar, Maryland Heavy Construction Plumbing Contractors Paint Wholesale Electrician Contractors Hauling Heavy Construction Equipment Rental Leasing Concrete Aggregates Wholesale