Hot Water Heater
With a lifespan of 10 to 15 years, most modern hot water heaters do not have to be replaced as frequently as older models did. However, water damage is still possible due to leaks that can start earlier because of installation issues. Keep a close eye on the appearance and performance of your unit.

Refrigerator
The tubing that an ice maker uses to pull water into the refrigerator can give rise to many problems at it is typically constructed of malleable plastic, and this issue can compound given that refrigerators are rarely moved. Making a point to inspect under and behind yours often can alert you to any hidden leaks before they begin causing serious damage behind your fridge.

Dishwasher
Dishwashers are another appliance that are not moved regularly and can hide leaks well. While dishwashers can last for years, older models that cause water damage may not be covered by insurance depending on the situation. As with the fridge, checking regularly is the best way to prevent any leaks from getting out of hand.

Washing Machine
Washing machine leaks are such a common problem that it is recommended to check their hoses as frequently as once a month to guard against wear and tear. Even with regular checks, exercise caution by replacing these hoses every five years regardless of if they appear worn.

Air Conditioner
As long as the air conditioning unit’s draining mechanisms are operational, the condensation it creates is drained away. However, if there is a malfunction, water can build up in and around the unit, soaking everything in the area. As units are often secluded, it is wise to check on them often and perform the regular inspection and maintenance as advised by the manufacturer.