Hot Water Heater
When upkeep and regular maintenance are done, hot water heaters typically last around 10 to 15 years before needing to be replaced. However, their external components can begin leaking much earlier than this. Watching the seals and pipes surrounding your unit to check for moisture is a good idea.

Refrigerator
It is not common for most people to make a point to pull the refrigerator away from the wall, but it is something that homeowners are wise to get in the habit of. The water lines behind the refrigerator are typically sandwiched in at odd angles, which can lead to leaks and miniature tears, which can cause large issues if the fridge is not moved with some regularity.

Dishwasher
Dishwashers are also rarely moved, making them common culprits for hidden, severe water damage due to the amount of water they require. Insurance coverage doesn’t always extend to dishwasher-related damages, so checking regularly to prevent having severe water damage hiding in your kitchen is best.

Washing Machine
One of the most common places for leaks, it is recommended to check behind the washing machine at least once a month for any leaks. Even if no leaks are present, the hoses should typically be replaced every five years to ensure they do not create any issues as they wear down.

Air Conditioner
The drainage system on an air conditioning unit is designed to remove the moisture it creates as it runs, but any issues with this drainage system can easily turn into a water damage scenario. Keeping up with your manufacturer-recommended maintenance is one of the best prevention strategies—your unit will be inspected and any issues will be handled quickly. Additionally, do self-checks on your unit when it is running regularly to check for water buildup or damage.