Diamond Auto Labs is a car detailing service in Hagerstown, Maryland, at 12117 Insurance Way Suite E-F, Hagerstown, Washington County, Maryland. Opening hours: Mon–Fri 8 AM–3 PM · Sat 10 AM–3 PM · Sun Closed. Listed services: Vinyl sign shop, Window tinting service, A&T Auto Spa, Wheelchair accessible entrance and Restroom, Appointment required. Call (443) 901-6548 to check prices or availability before you go.