Check under sinks for leaks, test water pressure at all fixtures, inspect water heater age and condition, look for corroded pipes, check outdoor hose bibs, test all faucets and toilets, and look for water stains on ceilings and walls.
DIY Checklist
Under sinks, water pressure, water heater age, pipe condition, outdoor faucets, toilet function.
When to Call a Plumber
Low water pressure, persistent clogs, water stains, running toilets that won't stop.
Water Heater Age
Check manufacture date on sticker. Average lifespan: 8-12 years tank, 20+ tankless.
Seasonal Checks
Check outdoor faucets before first freeze. Drain and insulate if freezing expected.