Open the cabinet under any corridor kitchen sink and you are reading the home’s plumbing diary. The trap and its arms, the disposal’s joints, the dishwasher’s drain loop, the supply valves and their braided lines, sometimes a filter or an instant-hot unit — all of it aging in the dark, in a space nobody inspects until something smells damp. Thin-wall traps from the 1980s townhome stock corrode through in this exact spot; dishwasher drain hoses crack and weep a tablespoon per cycle, which over a year is a cabinet floor.
Our kitchen service treats the under-sink as a system, not a single symptom: the reported problem fixed, and its neighbours inspected while access is free — valves exercised or replaced before they seize, supply lines checked for the bulges and corrosion that precede bursts, the dishwasher’s high loop confirmed, because a missing air gap or sagging loop is how drain water walks back toward a clean load. A kitchen cabinet floor saved by a ten-minute inspection is the least glamorous and most valuable outcome in this trade.