
Locations · 5 primary metros
Tier-1
coverage.
Five tier-1 metros where Mason has demonstrable job history. Tier-2 expansion (Rochester, Scranton, Lancaster, Niagara Falls, State College) added selectively as portfolio grows.
New York
Erie County
Buffalo
42.89°N · 78.88°W
Second-largest city in New York and our largest service market in Western NY. Dense pre-1978 housing stock + lake-effect humidity = significant mold + asbestos workload.
Erie County
Orchard Park
42.77°N · 78.74°W
Our New York operations base — same-week response across Erie County and into Cattaraugus.
Chautauqua County
Fredonia
42.44°N · 79.33°W
Lakeshore community with significant pre-1978 housing inventory + lake-effect humidity belt. Active real-estate transaction market.
Pennsylvania
Erie County
Erie
42.13°N · 80.09°W
Pennsylvania's lakefront city — our PA operations base. Cross-border real-estate and industrial environmental workload.
Allegheny County
Pittsburgh
40.44°N · 80.00°W
Steel City — extensive industrial legacy means deep Phase I/II ESA + asbestos workload. Allegheny County is EPA Radon Zone 1.

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48-hour appointment window. 24-hour lab turnaround. Licensed inspectors, unmarked vehicles, statewide coverage in NY and PA.