Portland, Maine, sits on a peninsula in Casco Bay, and the winter that matters is a nor'easter, not a long gray drizzle from some other Portland. Wind comes off the Atlantic, drives rain sideways up under shingles, soaks the sills on Munjoy Hill, and then the temperature drops and the wet locks into ice the same night. The West End's brick and clapboard, the East End's exposed streets, and the houses toward Back Cove all take that pattern in different doses. North Deering is not the Eastern Prom. Say where you are on the peninsula.
Salt spray and wind find flashing, outdoor equipment, and paint on the water-facing blocks. Older brick and wood houses hold the water in their walls once it is driven in. Flat and low roofs pond. Pitched roofs on the hill lift at the rakes. A working waterfront does not give you a mild marine climate. It gives you storms that hit a dense old city and then freeze. Interior pipes, boilers, and pests follow that wetting. They are not a separate climate.
Lots are tight, stairs are old, and a leak on a top floor becomes a ceiling below before the storm is over. Parkside, the West End, and the East End do not offer suburban yards to absorb the water. Back Cove wind and prom walks take the open fetch. Inland neighborhoods of the city still freeze, but they are not the first to lose shingles when the bay is white. Name the exposure or the repair will be planned for the wrong house.
If you are calling about a policy, know the deductible and whether this is a claim after wind-driven rain or a question about what the pages cover. Surge and flood near the harbor and low streets are often outside a standard homeowners policy. A wind deductible may not match the deductible for a quiet leak. Ask about your own pages.
Bring the neighborhood and the building. Roof, windows, bath, heat, pests, pipes, a small salted yard, or gear on a roof the next nor'easter will test. Pick the trade and call.