Maine splits into a few worlds: the coastal cottage corridor from Kennebunkport through Portland, Camden, and Boothbay up to Bar Harbor and Acadia; the western mountains around Sunday River and Sugarloaf; and the inland lakes. Most of it is seasonal, with June through October carrying the revenue, which shapes both pricing and the vacancy exposure carriers care about.
The freeze and the empty houseThe defining Maine peril is winter freeze in a property that sits empty between bookings. A burst pipe in an unoccupied coastal cottage in February is one of the most common large losses in the state, and it is exactly the claim a carrier scrutinizes for whether the heat was maintained and the system monitored. Marine air also wears exteriors hard, which matters for roof and siding claims on older homes.
Freeze losses in seasonally vacant homes are where Maine claims most often fail. Standard policies expect a level of occupancy or monitoring that a closed-for-winter cottage does not meet, and a claim can be denied as a maintenance failure rather than a sudden loss. Confirm how your policy treats vacancy, freeze, and the months you are not renting.
Maine has no statewide STR registration; the rules live in the towns, and the coastal ones are the strict ones. Portland runs four rental categories with annual registration renewed each December and fire-safety compliance, weighted toward primary residences. Bar Harbor sorts rentals into owner-occupied VR-1 and non-owner-occupied VR-2 permits, each with registration, inspection, and caps in residential zones, and towns like Rockland tie the permit to proof of insurance and parking. The state collects a 9 percent lodging tax on top. Confirm the town’s category and permit before you buy.