Erie sits on the lake shore and gets 104.3 inches of snowfall in a normal year, with 31.8 inches in January alone. January's normal mean high is 35.2°F, so snow often sits, thaws and refreezes through the winter. That cycle can send meltwater into basements, walls and roof edges, and damp spaces are where mould can start. When you hire for drying out or mould removal in Erie, ask first about registration. Pennsylvania's Home Improvement Consumer Protection Act requires most contractors who do home improvements to register with the Office of Attorney General, with exceptions for very small contractors and large retailers. A registered contractor must give the registration number in ads and contracts, so check for it on the quote. The law also sets minimum insurance requirements and required contract terms. Ask for the scope of drying and repair in writing, and get the insurance details before work begins.
Source: National Weather Service Cleveland (source, opens in a new tab)