Winter is hard on plumbing in ways that don't announce themselves until spring: the hose bib that froze in January doesn't leak until the first hose connection in May. A one-hour spring walkthrough catches winter's quiet damage while it's still small. Here's the checklist we'd run on our own homes — in the order that finds problems fastest.
Outside first: spigots, and the hidden burst
Turn on each outdoor spigot fully — then go inside and inspect the pipe behind it while it runs. A hose bib that froze with a hose attached typically splits inside the wall and leaks only when the spigot is on, which is why the damage hides until watering season and then soaks a wall cavity all summer. Weak spigot flow is a second clue to internal damage. While outside: confirm downspouts and their extensions survived winter intact and still discharge away from the foundation, and look over any visible drainage grates for winter debris.
The sump pump, before spring rain tests it
Spring's saturated ground is sump season. Pour a bucket of water into the pit: prompt start, quick evacuation, clean shutoff — and a float that moves freely, not wedged against the pit wall or tangled. Walk the discharge line outside and verify winter didn't crack, crush, or disconnect it, and that it still releases water well away from the house on ground that slopes off. If the pump is past seven or eight years or sounded rough on the test, replace it before the first real storm — not after.
Inside: heater, valves, and the winter's evidence
Give the water heater its annual attention: a sediment flush (hard winter run-time accelerates buildup), a look at the relief valve's discharge pipe for signs of weeping, and a check around the base for moisture. Exercise the main shutoff and the fixture stops — valves seize from stillness, and spring is the scheduled reminder. Then hunt winter's evidence room by room: new ceiling or wall stains (ice-dam and pipe seepage shows now), running-toilet sounds, cabinet floors under sinks, and the water meter test — everything off, low-flow indicator still — as the final arithmetic check.
The buried lines, if they've earned attention
Homes with mature trees over the sewer lateral should know that spring is root season — the growth surge that turns last year's minor intrusion into this year's backup. If your line has any root history, a spring clearing or camera check is timing well spent. Same logic for buried downspout and yard drain lines heading into rain season: a quick flow test now beats discovering the clog in a downpour. Lumin Drain NJ handles the spring list's professional tier — pump replacements, heater service, root clearing, camera inspections — across New Jersey: 929-662-1816.