The short answer
What Happens to a Grand Piano in Water
Water acts fast on a grand piano. The felt pads on the hammers absorb moisture and swell, which changes the tone and can make keys stick. The wooden soundboard, the large spruce panel that amplifies sound, can warp or crack as it dries unevenly. Even the metal strings and tuning pins can rust or corrode, affecting pitch and stability.
If the piano has been submerged or soaked for more than a few hours, the glue holding the wooden joints may soften. This can cause the rim, the bent wooden frame, to separate or lose its shape. The action, the complex mechanism of levers and springs, can also seize up. You can see why acting quickly matters, but you also need to be careful not to cause more harm.
What You Can Do Right Away
Your first step is to stop the water source and remove any standing water from the floor around the piano. Use towels or a wet vacuum to soak up as much water as you can. Do not try to play the piano or move it yourself if it is heavy; you could damage the instrument or hurt your back.
Open the lid and the fallboard to let air circulate, but do not point fans or heaters directly at the piano. Rapid drying can crack the soundboard and cause the wood to split. Instead, use a dehumidifier in the room to slowly lower the moisture level. If the piano is on carpet, you may need to remove the carpet to dry the floor underneath, but that is a job for a professional.
- Turn off the water supply if a pipe or valve is the cause
- Mop up puddles and blot wet surfaces with clean towels
- Open the lid and the key cover to expose the interior
- Place a dehumidifier in the room, not inside the piano
- Do not play the keys or press the pedals while wet
- Take photos of the damage for your records
Getting Professional Piano Help
A grand piano is a precision instrument. The action has thousands of moving parts, and the soundboard is tuned to a specific tension. A water damage pro can dry the piano in a controlled way, but they may not have the specialized knowledge to rebuild the action or recondition the felt. You likely need a piano professional to handle the musical parts.
When to Call in Water Damage Pros
If water has soaked into the floor, walls, or the piano's wooden frame, you need a water damage pro to handle the structural drying. They use industrial dehumidifiers and air movers to dry the wood slowly and evenly. They can also check for hidden moisture in the piano's rim and legs, which can lead to mold if left damp.
- Extract standing water from the floor and carpet
- Set up professional drying equipment for the room
- Monitor moisture levels in wood and drywall
- Prevent mold growth on wet surfaces
- Dry the subfloor and wall cavities behind the piano
- Coordinate with a piano professional for the instrument itself
The Drying Process and Your Piano
Drying a grand piano takes time, often weeks. The pros will dry the room, but the piano itself must be dried slowly to avoid cracking the soundboard. A piano professional may use a special dehumidifier rod inside the piano, or they may disassemble parts to dry them separately. The felt hammers and dampers may need to be replaced if they are too swollen.
You can help by keeping the room's humidity stable. Use a hygrometer to monitor it, and keep the piano away from direct sunlight and heating vents. Do not attempt to tune the piano until it is fully dry, as the strings will stretch and go out of tune again. Your insurance company may cover some of the cost, but policies vary, and your insurer decides what is covered.
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Call Now (425) 407-5186Frequently asked questions
How long does it take for a grand piano to dry after water damage?
The drying process can take several weeks to a few months, depending on how wet the piano got and the humidity in your home. The pros can dry the room, but the piano's wood and felt need slow, even drying. A piano professional will guide you on when it is safe to tune.
Can a water-damaged grand piano be saved at all?
Yes, but the outcome depends on the damage. If the piano was submerged for a long time, the soundboard and pinblock may be beyond repair. A piano professional can assess the damage and tell you if restoration is worthwhile. In some cases, only the action needs work.
Should I file an insurance claim for a water-damaged piano?
You can check your homeowners or renters policy to see if it covers water damage to a musical instrument. Some policies have limits for pianos, and you may need a separate rider. Policies vary, and your insurer decides what is covered. Document the damage with photos and keep receipts.