The short answer
Remove Standing Water First
Your first move is to get rid of any standing water. Use a wet-dry vacuum to pull up as much as you can. If carpet or padding is soaked, pull it up and take it out of the room. The longer water sits on the hardwood subfloor, the deeper it soaks in.
Check for water trapped under baseboards or in seams between subfloor panels. A moisture meter helps you see how far the water has spread. Mark the wet areas with tape so you can track drying progress. Do not wait to start this step, as wood absorbs water quickly.
Increase Airflow and Lower Humidity
Once the bulk of the water is gone, your job is to move air across the subfloor. Set up fans to blow across the wet areas, and open windows if the outdoor air is drier than inside. A dehumidifier pulls moisture from the air, which helps the wood release its own moisture.
Run the fans and dehumidifier continuously for the first few days. Keep the room temperature moderate, as very cold or very hot air can slow drying. If you have a crawl space or basement under the subfloor, dry that area too, since moisture can travel upward.
- Use a wet-dry vacuum for standing water
- Pull up wet carpet and padding
- Set up fans to blow across the wet subfloor
- Run a dehumidifier in the room
- Open windows if outdoor humidity is lower
- Check moisture levels daily with a meter
Know When to Call the Pros
If the subfloor still feels damp after a few days of drying, you may need help. The pros have industrial dehumidifiers and air movers that dry deeper into the wood. They also use moisture meters to find hidden pockets of water that you might miss.
Structural drying is a service that targets the subfloor and the space under your house. For severe cases, the pros may need to remove part of the subfloor to dry the joists and insulation. Acting quickly reduces the risk of warping or mold growth.
Watch for Signs of Mold
Damp wood is a prime spot for mold to start growing. Check the subfloor for dark spots, a musty smell, or a slimy texture. If you notice any of these, do not disturb the area, as that can release mold spores into the air.
If you see mold, contact a mold professional for an assessment. They can tell you whether the mold is surface-level or has spread deeper. Keep the area ventilated while you wait, and avoid spending long periods in the room. See a doctor if you feel unwell from the smell or air.
Protect Your Home Going Forward
After the subfloor dries, you may need to repair or replace some boards. Check with a flooring professional about whether your hardwood can be sanded and refinished or if it needs partial replacement. The pros can help with hardwood water damage restoration if the surface is damaged.
Look for the source of the water, whether it was a leak, a flood, or a plumbing issue. Fixing the cause prevents a repeat. If you live in Layton, keep your shutoff valve location written down so you can stop water quickly in an emergency. Policies vary, and your insurer decides what is covered.
- Inspect for mold regularly
- Fix the source of the water leak
- Consider refinishing or replacing damaged boards
- Keep a moisture meter handy for future checks
- Document the damage for your insurance records
Need help right now?
Phones are answered 24/7 for Layton and nearby communities.
Call Now (801) 383-0232Frequently asked questions
How long does a hardwood subfloor take to dry?
Drying time depends on how much water was absorbed, the humidity, and airflow. With fans and a dehumidifier, a light spill may dry in a few days. A deep flood can take a week or more. Use a moisture meter to track progress.
Can I dry the subfloor with a space heater?
Space heaters can help, but they dry the air and may not reach moisture deep in the wood. They also pose a fire risk if placed near wet materials. Better to use fans and a dehumidifier, which remove moisture from the air without overheating.
What if the subfloor is still wet after a week?
If the subfloor remains damp after a week, you likely need professional help. The pros have heavy-duty drying equipment that can pull moisture from deep within the wood. They can also inspect for hidden water damage and mold growth.