The short answer
Start with a Sniff Test
Follow your nose to the strongest smell. Check the walls, floor, ceiling, and around windows. Musty odors often come from a hidden leak behind drywall or under flooring. Run your hand along baseboards and feel for dampness.
Also check the nursery's contents. Stuffed animals, books, and crib mattresses can absorb moisture and smell musty. Even in a dry climate, a musty smell is a strong clue that liquid water is present. Move furniture away from walls to inspect behind them.
Hunt for Moisture Sources
Common culprits include roof leaks, pipe leaks, or condensation from cold surfaces. Look at the ceiling for water stains or bubbling paint. Check under the sink if the nursery has a bathroom nearby. A leaking roof or a burst pipe can soak insulation and drywall.
Condensation can also cause mustiness. Cold windows and exterior walls can collect moisture when warm indoor air hits them. If you notice water droplets on the glass or damp spots on the wall, that's a clue. A dehumidifier can help, but first find the source.
- Check the ceiling for stains or soft spots.
- Inspect window frames and sills for condensation.
- Feel walls for damp patches, especially near corners.
- Look under the crib and along baseboards.
- Check the closet and any stored boxes for dampness.
Dry Out the Room
Once you find the moisture, dry the area as soon as possible. Open windows if the outdoor air is dry. Use fans to circulate air and a dehumidifier to pull moisture from the air. Move wet items like rugs, pillows, and toys to a dry, sunny spot.
If the dampness is extensive, you may need professional help. Local water damage pros can use moisture mapping to find hidden water and structural drying to remove moisture from walls and floors. Acting quickly reduces the chance of mold spreading.
- Open windows on dry days.
- Run a fan to keep air moving.
- Use a dehumidifier in the room.
- Remove and dry wet fabrics and toys.
- Wipe down hard surfaces with a mild cleaner.
Fix the Underlying Problem
Drying the room is only temporary if you don't fix the leak or the source of moisture. If a roof leak is the cause, you may need a roofer to repair it. If it's a pipe leak, a plumber can fix the pipe. Water damage to drywall or flooring may need to be removed and replaced.
If mold has grown, a mold professional can assess the situation and recommend safe removal. The pros can also help with drywall repair and flooring removal if the damage is severe. Address the cause to prevent the musty smell from returning.
Keep the Nursery Dry
Prevent future mustiness by controlling indoor humidity. Use a dehumidifier if the air feels damp, especially after baths or cooking. Keep the room ventilated with a fan or open window when possible. Check for leaks regularly, especially after heavy rain or snowmelt.
Water damage does not wait
Call (801) 383-0232 any time, day or night, and describe what happened.
Call Now (801) 383-0232Frequently asked questions
Is a musty smell dangerous for my baby?
Musty smells come from mold, which can trigger allergies or breathing problems in some people. If you notice health symptoms like coughing or sneezing, see a doctor. It's wise to find and fix the moisture source to keep the nursery healthy.
Can I just paint over the musty wall?
Painting over a damp or moldy wall won't solve the problem. The moisture and mold will continue to grow and may come through the paint. You need to fix the leak, dry the wall, and remove any moldy material before repainting.
Should I hire a professional for musty smell?
If you can't find the source or the area is large, hiring a professional is a good idea. Local water damage pros can use leak detection and moisture mapping to find hidden water. They can also help with drying and repairs, but the cost depends on the extent of the damage.