Mount Airy, Maryland
ExteriorMax work for Mount Airy, plus Walkersville and Thurmont. 12 ZIP codes in Frederick County. ExteriorMax installs roofing, siding, windows, gutters, doors, and decks in Mount Airy, 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 Mount Airy.
Roofing
Owens Corning roof replacement and storm repair. A free 60-point inspection is written down and sent to you.
Roofing in Mount Airy
Siding
CertainTeed vinyl, insulated vinyl, James Hardie fiber cement, and LP SmartSide engineered wood, plus new soffit and fascia.
Siding in Mount Airy
Windows
ProVia replacement windows. Double-hung, casement, bay, bow, sliders, and awning, measured at the house.
Windows in Mount Airy
Gutters
Seamless gutter installation, replacement, and gutter guards, sized to the roof and pitched to move water.
Gutters in Mount Airy
Doors
Entry doors, sliding patio doors, hinged patio doors, and storm doors, fitted to the opening.
Doors in Mount Airy
Decks
Composite and wood decks with railings, laid out to the doors and the grade, framed to code.
Decks in Mount AiryZones and ZIP codes
North Frederick & Carroll Commuter Belt
Walkersville, Thurmont, Mount Airy. Frederick County. Zone MD-FRED-NORTH-EAST. ZIP codes: 21727, 21759, 21762, 21770, 21771, 21774, 21775, 21778, 21788, 21792, 21793, 21798.
From 2025-11-11 through 2026-11-11, National Weather Service severe reports for Frederick County include this headline: 58 mph winds recorded in Frederick 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.
Nearby
Thurmont · Walkersville · Brunswick · Frederick · Middletown · Urbana