The short answer
Empty the Cabinet
Take out every item stored under the sink: cleaning supplies, sponges, trash bags, and any pans or containers. Set them aside on a dry surface where they can air out. This gives you a clear view of the damage and lets air reach every surface. It also helps you spot the source of the leak, whether it's a loose pipe joint, a worn seal, or a crack in the supply line.
Wipe and Absorb Moisture
Use old towels or rags to soak up standing water from the cabinet floor, the walls, and any shelves. Press down firmly to pull water out of the wood. Change towels as they become saturated. For tight corners, use a sponge or a mop handle wrapped with a cloth. The goal is to remove as much liquid as possible before you start drying the air.
- Use a wet-dry vacuum if you have one to pull water from cracks and joints.
- Lay a dry towel on the floor and step on it to press moisture out of the wood.
- Wear rubber gloves to protect your hands from cleaning chemicals and dirty water.
- If you see mold, stop and consider professional help before spreading spores.
- Keep a bucket handy in case the leak is still active and water drips again.
Use Fans and Dehumidifiers
Set up a small fan to blow air into the open cabinet. Position it so it pushes air across the wet surfaces, not just into the room. Leave the cabinet doors open for several hours, or even overnight. Air movement is key to drying wood and preventing mold. If you have a dehumidifier, place it nearby to pull moisture from the air, especially in humid conditions.
Run the fan and dehumidifier for at least 24 to 48 hours, checking the wood periodically. Touch the surfaces to feel for dampness. If the wood still feels cool or moist, keep the air moving. In a closed space like a kitchen cabinet, stagnant air slows drying and encourages mold growth. Patience matters, but you can speed things up with good airflow.
Inspect for the Leak Source
While the area dries, trace the leak to its source. Look at the pipe connections under the sink, the drain trap, and the water supply lines. Tighten loose fittings with a wrench, but don't overtighten. Check the seal around the sink rim where it meets the countertop. A slow drip from a pinhole leak can cause the same damage as a burst pipe over time.
If the leak comes from a supply line or a valve, you may need to replace a washer or a hose. For drain leaks, the gasket might be worn. If you can't find the source, the problem could be behind the wall or under the floor. In that case, you might need a plumber or a leak detection service to locate it accurately.
- Check the water supply shutoff valves under the sink and turn them off if the leak is active.
- Feel the pipes with a dry hand to detect cold spots that indicate a slow leak.
- Look for water stains on the cabinet walls or the floor that trace the path of the water.
- Test the sink drain by running water and watching for drips from the trap.
- If the leak is from a supply line, consider replacing the braided hose as a precaution.
When to Call the Pros
If the wood is severely warped, the subfloor is soaked, or you see mold growing, the drying job may be beyond a simple fan. Water can seep into the cabinet structure and the floor framing, causing long-term damage. At that point, you need professional equipment like commercial dehumidifiers and moisture meters to dry the area properly and prevent further issues.
Local water damage pros can assess the extent of the moisture and set up drying equipment. They can also help with structural drying and dehumidification if the leak affected the subfloor. If you live in Layton, keep your shutoff valve location written down so you can respond quickly to future leaks. For mold, consult a mold professional to handle it safely.
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Call Now (801) 383-0232Frequently asked questions
How long does it take to dry under a kitchen sink?
Drying time depends on the amount of water and the materials. With a fan and open doors, a small spill may dry in a day. Larger leaks that soaked the wood can take several days, especially if the subfloor is wet. Keep air moving until the wood feels dry to the touch.
Can I use a hair dryer to speed up drying?
A hair dryer can help on small, hard-to-reach spots, but it's not ideal for large areas. It can get too hot and damage the wood or create a fire hazard if used near flammable materials. A fan or a dehumidifier is safer and more effective for drying a whole cabinet.
What if I see mold under the sink?
If mold is visible, avoid touching it directly. Small patches can be cleaned with a mild detergent and water, but porous materials like wood may need to be removed. For larger growth, or if you have respiratory concerns, see a doctor if you feel unwell and contact a mold professional for safe removal.