Boonsboro, Maryland
ExteriorMax work for Boonsboro, plus Smithsburg and Hancock. 15 ZIP codes in Washington County. ExteriorMax installs roofing, siding, windows, gutters, doors, and decks in Boonsboro, Maryland under MD 142964. Maryland, Virginia, West Virginia, and Pennsylvania are authorized service areas. The business address is 6301 Ivy Ln, Suite 120, Greenbelt, MD 20770.
The same trades, for this area.
Each service has its own page. The materials and the install steps match the company-wide service. The ZIP list is what is specific to Boonsboro.
Roofing
Owens Corning roof replacement and storm repair. A free 60-point inspection is written down and sent to you.
Roofing in Boonsboro
Siding
CertainTeed vinyl, insulated vinyl, James Hardie fiber cement, and LP SmartSide engineered wood, plus new soffit and fascia.
Siding in Boonsboro
Windows
ProVia replacement windows. Double-hung, casement, bay, bow, sliders, and awning, measured at the house.
Windows in Boonsboro
Gutters
Seamless gutter installation, replacement, and gutter guards, sized to the roof and pitched to move water.
Gutters in Boonsboro
Doors
Entry doors, sliding patio doors, hinged patio doors, and storm doors, fitted to the opening.
Doors in Boonsboro
Decks
Composite and wood decks with railings, laid out to the doors and the grade, framed to code.
Decks in BoonsboroZones and ZIP codes
Rural Washington County
Boonsboro, Smithsburg, Hancock. Washington County. Zone MD-WASH-RURAL. ZIP codes: 21711, 21713, 21715, 21719, 21720, 21721, 21722, 21733, 21746, 21750, 21756, 21766, 21779, 21782, 21783.
From 2025-11-11 through 2026-11-11, National Weather Service severe reports for Washington County include this headline: 1.00" hail recorded in Washington County. That is a county record. It does not mean every home in these ZIP codes experienced that weather. The headline is county context. It is not a damage report for a specific house.