The short answer
Check for Slow Leaks
A musty smell often comes from a slow leak that never fully dries. Look under the sink, around the water heater, and behind the washing machine. Even a tiny drip can keep the area damp and create that moldy odor.
Feel the floors and walls near pipes for dampness. Check the water heater's drain valve and pressure relief valve for drips. If you find a leak, a plumber can fix it. Meanwhile, dry the area with towels and a fan to stop the smell from getting worse.
Consider Humidity and Airflow
Utility rooms often have little air movement, especially if the door stays closed. High humidity from washing machines or dryers can linger, causing musty smells. Run an exhaust fan or open a window if you have one to help moisture escape.
A dehumidifier can also help pull moisture from the air. Keep the room tidy so air can circulate around appliances. If the smell persists after improving airflow, there may be hidden dampness in the walls or floor that needs professional attention.
- Run the exhaust fan during and after laundry
- Leave the utility room door open when possible
- Use a dehumidifier set to 50 percent humidity
- Wipe down wet surfaces after each use
- Move boxes and clutter away from walls
- Check the dryer vent for blockages
Inspect the Washing Machine
Your washing machine can be a hidden source of musty odors. Front-loaders often collect water in the rubber gasket, which can grow mold. Leave the door open between loads so the inside can dry out.
Check the drain hose for kinks or leaks. A damaged hose can drip water behind the machine, soaking the floor and walls. Also clean the detergent drawer regularly, as leftover soap can harbor mold. If you see water stains or soft wood, the leak may have caused structural damage.
When to Call the Pros
If you cannot find the leak or the smell continues, it is time to bring in local water damage pros. They can locate hidden leaks using specialized equipment and assess the extent of the moisture. They also have industrial dryers and dehumidifiers to dry out walls and floors.
For a musty utility room, the pros can perform a water damage inspection to map out all affected areas. They may also use moisture mapping to see how far the water has spread. If mold is already growing, a mold professional should handle the cleanup to keep you safe. If you live in Layton, keep your shutoff valve location written down so you can stop a leak quickly.
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Call Now (801) 383-0232Frequently asked questions
Can a musty utility room make you sick?
Musty odors often come from mold, which can trigger allergies or breathing problems. If you feel unwell, see a doctor. Keep the area ventilated and wear a mask when cleaning mold. For large mold areas, get professional help.
How do I find the source of the musty smell?
Start by looking and smelling around pipes, the water heater, and appliances. Check for damp spots on floors and walls. Use a flashlight to see behind machines. If you cannot find it, a leak detection service can pinpoint hidden leaks without tearing things apart.
Will my insurance cover the damage?
Policies vary, and your insurer decides what is covered. Check your policy and talk to your insurance company about what you have. Water damage from a sudden leak is often covered, but gradual damage may not be. Document the damage with photos and keep records.