West Islip adds the Suffolk question
Unlike largely-sewered Nassau, much of Suffolk runs on cesspools and septic systems, and that system is a five-figure component the listing rarely mentions. Age, location, and what the house's plumbing says about it all belong in the buying decision — the septic and well page covers what can and cannot be established during a standard inspection.
The houses themselves age the way sixty-year-old South Shore houses do: eaves and soffits go first where gutters failed quietly, boilers rust from the fittings inward, and additions meet original construction in the attic where nobody looks. That is the actual work of the inspection, and it is why Lou opens every hatch he can reach.
Related: Septic and well, explained · What an inspection costs · Schedule an inspection.