Alleghany Mechanical Service’s LLC EditDeleteReturn to Directory Business Name: Alleghany Mechanical Service’s LLC Business Category: Household Business Description / Hours: Specializing in Residential Water Softening and Filtration Services Business Website Address: http://alleghanymechanical.net/ Business Phone Number: 301-992-7548 Business Fax: 301-571-1691 Business Address: Hagerstown, MD 21740 ZIP Code: 21740