Overview
Most water damage is preventable. The homes that get hit hardest are usually the ones where a small, ignorable issue quietly grew. This annual checklist walks through the maintenance that catches problems early - organized so you can knock it out over a year. (General prevention guidance.)
Plumbing & water supply
- [ ] Know where your main shut-off valve is - and that it works. (In an emergency, every second counts.)
- [ ] Check under-sink connections (kitchen, bathrooms) for drips, corrosion, or warping.
- [ ] Inspect exposed pipes for corrosion, moisture, or mineral buildup.
- [ ] Watch your water bill - an unexplained increase can signal a hidden or slab leak.
Appliances
- [ ] Replace rubber washing-machine hoses with braided steel; check yearly.
- [ ] Know your water heater's age (8-12 years typical); watch for rust or pooling; consider a drain pan with a sensor.
- [ ] Inspect dishwasher and refrigerator water lines.
- [ ] Clear the AC condensate line before summer.
Roof & exterior (before the rainy season)
- [ ] Clean gutters and downspouts so water drains away from the foundation.
- [ ] Inspect the roof for damaged or missing shingles, and check flashing around chimneys and skylights.
- [ ] Ensure grading slopes away from the home so rain doesn't pool against the foundation.
- [ ] Check window and door seals for gaps.
Bathrooms & wet areas
- [ ] Re-caulk tubs, showers, and sinks where caulk is cracked or missing.
- [ ] Check toilet seals and supply lines.
- [ ] Run exhaust fans to control humidity (mold prevention).
Seasonal timing
- Spring: post-rain check for leaks and moisture; mold watch (see spring home maintenance).
- Summer: appliance focus; pre-vacation shut-off.
- Fall: roof, gutters, and grading before winter storms; pipe-freeze prep in cold snaps.
- Winter: monitor during atmospheric-river storms; know your shut-off.
Smart upgrades worth considering
- Leak-detection sensors near water heaters, washers, and under sinks (phone alerts).
- An automatic water shut-off device for whole-home protection.
The takeaway
None of these tasks is difficult - and together they prevent the majority of common water-damage scenarios. Set a reminder, work through a section each season, and you'll catch the small problems before they become floods.

