Plumbing Maintenance Every Homeowner Should Do
Water damage is the most common and most expensive homeowner insurance claim. Most of it is preventable with an hour a year.
Plumbing failures are rarely sudden. Supply lines weep before they burst, water heaters rust before they split, and drains slow before they clog. The maintenance is mostly looking.
Know your shutoffs
- Locate the main water shutoff and confirm it turns — exercise it once a year
- Locate the water heater's cold inlet shutoff
- Confirm every toilet and sink has a working local shutoff
- Label the main shutoff so anyone in the house can find it in an emergency
- Know where the gas shutoff is and keep a wrench near it if it requires one
Water heater care
Sediment accumulation reduces efficiency and shortens tank life. Drain a few gallons annually, or fully flush every one to two years in hard water areas. Test the temperature and pressure relief valve yearly — if it does not reseat, replace it. Check the anode rod every three to five years; replacing a $40 rod can add years to a tank.
Leak detection
- Read the water meter, avoid all water use for two hours, then read it again — movement means a leak
- Check under every sink twice a year for moisture, staining, and swollen cabinet bottoms
- Inspect washing machine hoses; replace rubber hoses with braided stainless every five years
- Look at ceilings below bathrooms for staining
- Add water leak sensors near the water heater, washer, and any basement fixture
- Check toilets for silent leaks by adding food coloring to the tank and waiting fifteen minutes
Drains
- Never pour grease down a drain; it solidifies in the line
- Use strainers in every sink and tub
- Skip chemical drain cleaners — they damage pipes and rarely clear the actual blockage
- Run water in unused fixtures monthly so traps do not dry out and admit sewer gas
- Have main lines scoped if you have mature trees and recurring slow drains
When to call a plumber
Sewage backing up in more than one fixture, water pressure that drops suddenly across the house, any gas odor, a water heater leaking from the tank body rather than a fitting, or repeated clogs in the same line. These are not DIY situations.
Frequently asked questions
How long does a water heater last?
Typically 8 to 12 years for a tank unit, longer with annual flushing and anode replacement. Tankless units often last 15 to 20 years with descaling.
What causes low water pressure throughout the house?
Common causes include a failing pressure regulator, a partially closed main valve, mineral buildup in galvanized pipe, or a municipal supply issue. Whole-house symptoms point upstream.
Are water leak sensors worth it?
For the cost of a few sensors, they routinely prevent thousands of dollars of damage. Place them at the water heater, washing machine, dishwasher, and any below-grade fixture.
Editorial note. This article is general guidance, not a substitute for a professional inspection. If you suspect a gas leak, electrical fault, structural damage, or any condition that may be unsafe, leave the area if necessary and contact a licensed professional or your utility immediately.
