What to Do With Water-Damaged Electronics

Water damage to electronics can occur in a variety of ways, from high humidity in a flooded area to direct contact with floodwaters. When it happens, acting fast is key if you want to salvage your laptop, smartphone, and other devices. Learn more about how to save electronics from water damage.

What Happens When Electronics Are Exposed to Water?

When electronics come into contact with water, the damage can be immediate, or it can worsen slowly over time. Moisture can short-circuit internal components, corrode metal contacts, and compromise wiring insulation. Worse, floodwater often contains debris and contaminants that accelerate corrosion.

In cases of water damage by humidity, the culprit is usually due to water in the air coming in contact with dust and debris on the surface of the appliance and forming “mud” on crucial operating parts like circuit boards. This “mud” can cause electronics to short out and malfunction.

Learn more about the dangers of flooding water and how to prevent flooding around your house to protect your electronics and appliances before disaster strikes.

First Steps to Take When Electronics Get Wet

If your basement floods or a leak reaches your electronics, take the following immediate actions:

• Turn off power to the affected area to avoid electrical hazards
• Unplug all electronics—never touch wet devices while plugged in
• Remove the batteries, if applicable
• Gently wipe away visible moisture without shaking or turning the item on
• Avoid using heat sources like hair dryers, which can cause more damage
• Move items to a dry, well-ventilated area and allow time to air out

For larger issues, like a flooded entertainment center or server rack, you may need professional cleanup. Knowing who to call when your basement floods and how to clean up a flooded basement are good first steps in this scenario.

Can Water Damaged Electronics Be Repaired?

Water-damaged electronics can sometimes be saved. It depends on the type of device, the extent of exposure, and how quickly you act. Some items may just need drying and cleaning. Others may require professional repair or complete replacement.

Devices more likely to survive water damage:

• Desktop computers (especially if only the case or wires were exposed)
• Home appliances with sealed electrical components
• Remote controls and keyboards

Devices less likely to survive:

• Smartphones and tablets (unless they have water resistance)
• Smart home hubs and voice assistants
• TVs and soundbars with built-in power sources
• Gaming systems
• Window or portable ACs
• Lamps
• Fans

How to Clean Water-Damaged Electronics (If Safe to Do So)

If a device wasn’t powered on during the exposure and shows no signs of short-circuiting, you can try the following cleanup steps:

• Remove batteries or power sources immediately
• Wipe down with a dry microfiber cloth
• Use isopropyl alcohol (90% or higher) to clean corrosion on exposed contacts
• Place in a sealed container with silica gel packets or desiccants—not rice
• Wait 48–72 hours before attempting to power the item back on

Note: Always avoid turning on a device until you’re confident it's completely dry.

When to Replace vs. Repair Water-Damaged Electronics

Here’s a simple rule: if the repair costs more than half the value of the item—or if safety could be compromised—replace it.

• Repairable electronics: Higher-end devices with sentimental or critical value, like custom PCs or essential business hardware
• Replaceable electronics: Low-cost or aging devices, especially if internal corrosion is visible or replacement parts are rare

When in doubt, have a technician evaluate the damage before deciding.

FAQs About Water Damage and Electronics

Can you fix water-damaged electronics?

Yes, you can fix some electronics exposed to water, especially if you didn't power them on when wet. Dry them quickly, clean them professionally, and replace damaged components to restore function.

Is water damage to electronics permanent?

It can be. Water often causes corrosion, shorts, and irreparable circuit damage. The longer electronics stay wet, the lower the chances of recovery.

How long does it take for water to damage electronics?

Electronic damage can happen instantly if the device is powered on. Otherwise, corrosion can begin within a few hours and worsen over several days.

How long should I let electronics dry after water exposure?

Let devices dry for at least 48-72 hours in a well-ventilated area or sealed container with desiccants. Never turn the device on while it’s still wet inside.

Should I try to dry electronics with rice?

Rice isn't the best way to fix water damage to electronics. Rice absorbs moisture slowly and may leave behind dust or starch. Use silica gel packs or professional drying tools instead.

Protect Your Home and Electronics From Future Floods

The best way to protect your devices from water damage is to prevent water intrusion in the first place. Read up on our five ways to prevent basement flooding to keep your space dry—even if you live in a floodplain. Things like installing a sump pump and ensuring drainage is clear can go a long way in stopping future water damage. 

Need Help With Flood Recovery? Call Roto-Rooter Today

Any time you need emergency water removal, Roto-Rooter plumbers are ready to help. If your electronics were damaged in a flood or leak, we can assist with drying, cleanup, and preventing future incidents. Call today to schedule service or request a home inspection.