Skip to main content
  1. Home
  2. Home Maintenance
  3. Hacks & How-to's
  4. Evergreens

How to eliminate that musty ‘basement’ smell

Mold and mildew are big basement problems, but they can be solved

Add as a preferred source on Google
Finished basement with wood paneling
Elena Elisseeva / Shutterstock

Do you avoid spending time in your basement because of its unpleasant odors? Whether it’s finished or not, basements are typically cool, damp, and have little airflow going through them, which are all factors that contribute to its musty smell. Unfortunately, it takes more than general cleaning practices and air fresheners to rid the space of mustiness for good. Take a look at some of these tried-and-true methods for how to get rid of musty smell in basement spaces, so you can keep it smelling light, airy, and fresh.

1. Find the culprit of the musty smell

Standard basement with gray cement walls
Robert Kneschke / Shutterstock

If you smell that common musty stench, the culprit is often mold or mildew. Since basements tend to be damp and have little airflow, they are common hot spots for mold and mildew growth. The first step in preventing further growth by sealing any leaky spots and inefficient drains.

Leaking windows and doors

Check your basement’s exterior doors and windows for signs of moisture. Since leaks on the first floor can often drain into the basement, check the windows and doors on the main floor as well. If you find moisture around these entry points from rain or condensation, re-seal the area or call a professional to repair it.

Leaking pipes

Whether pipes are visible in your basement or not, you need to check them regularly for leaks. Examine any water and sewage pipes for signs of leaks and repair any cracks or poor seals. If plumber’s tape or epoxy putty can’t repair the leak, it’s time to call a professional.

Dried-up drains

Basement floor drains direct water out of the home to keep the floors dry and prevent them from flooding. The stagnant water in this drain also traps bad odors emanating from the sewage system below. However, these drains can dry up from infrequent use, releasing stench into the air. If you notice smells arising near your floor drains, just pour a few cups of water into the drain to block the gases from escaping.

2. Clean up the basement

finished basement seating area with white walls and carpet
Hendrickson Photography / Shutterstock

Once you’ve found the source of the odor and made any necessary repairs, it’s time to clean up any dank water, mold, or mildew.  If the smell is particularly offensive or the growth is expansive, you may need to call an expert for professional mold and mildew removal.

Get rid of mold and mildew

Products like bleach, vinegar, hydrogen peroxide, and even tea tree oil are some of the best at removing pesky fungus. Whether you decide to go the natural or chemical removal route, tackle your mold and mildew before it spreads and causes more issues.

Wash and mop all surfaces with bleach

Now it’s time to deep clean. Start by wiping down all surfaces with a bleach solution. Move all of your furniture and storage out of the way so you can sweep and mop underneath them.

Steam clean carpets and fabric furniture

Carpets and fabric in your basement absorb moisture from leaks or flooding and hold on to that musty smell for ages, so it’s crucial to tackle these areas as well. Steam clean your basement’s carpets and furniture upholstery to rid them of that stale stench once and for all.

Declutter storage areas

Decluttering your basement is an essential step in eliminating musty odors. Old books, paperwork, and clothes tend to absorb moisture and odors, exacerbating the mustiness. By purging these items, you remove potential sources of the smell and create a cleaner, fresher environment. Sorting through your belongings and discarding or donating what you no longer need can significantly reduce the musty scent, making your basement more pleasant and usable.

3. Deodorize the basement

Baking soda and vinegar in glass jars
focal point / Shutterstock

Ridding your basement of the source of foul odors won’t always get rid of the smell entirely. The room also needs lots of ventilation to banish the smell once and for all. Speed up the deodorizing process by placing containers around your basement that are filled with odor-absorbing materials like kitty litter, baking soda, vinegar, or even an industrial-strength moisture and odor absorber like DampRid.

4. Reduce the humidity in the space

Dehumidifier by a window
Mariia Boiko / Shutterstock

To prevent the musty smell from eventually returning, reduce the moisture in the space regularly. Run a dehumidifier in the space every few days to keep the humidity in your basement below 55%, — above which is a prime condition for mold growth. You can also run oscillating fans to increase airflow.

With a little regular maintenance, you can have a welcoming and fresh-smelling basement that’s a perfectly pleasant space to hang out in. With the steps we’ve reviewed, you can find the source of the mustiness, reduce moisture, and banish odors once and for all.

veronicasparks18@yahoo.com
Veronica Sparks is a writer from Milwaukee, Wisconsin who loves writing about gardening, home décor, and DIY life. She’s…
Color Drenching: The bold hue movement that is sticking around in 2026
Green living room walls with velvet green sofas

What is color drenching?Color drenching is an interior design trend where a single color is used on every surface in a room. This includes walls, trim, doors, and even the ceiling, creating a cohesive and immersive atmosphere. The technique can make a small room feel larger or a spacious room feel cozier, and it often extends to furniture, radiators, and cabinetry for a bold, unified effect.

While the term color drenching is relatively new, the concept has deep roots in design history. The look can be traced to historic European interiors where monochromatic schemes added depth and luxury. Even in the Victorian era, richly saturated jewel tones were often used in grand spaces such as libraries and parlors. It reappeared during the 1960's and 1970's as well. Designers have long understood that a single, enveloping hue can create a striking sense of mood and continuity.

Read more
Houseplants: Which ones thrive in your home all year long?
Snake plant

So which plants can handle winter? For homes that tend to be cooler, hardy plants like Snake Plants (Sansevieria), Cast Iron Plants, and ZZ Plants (Zamioculcas zamiifolia) are ideal. The good news is that all three can handle temperature drops and limited sunlight. The Cast Iron Plant, for example, can thrive in conditions as low as 50 degrees Fahrenheit.

While not quite as hardy, other low-maintenance favorites include Pothos (Epipremnum), Spider Plants, Ferns, and Heartleaf Philodendrons. These do well in shadier, low-light spots and require minimal care.

Read more
Refresh your bedroom for better sleep
how often to replace pillows man asleep in bed

Unfortunately, many of us struggle to rest. In nature, mammals slow down this time of year as they move into hibernation, cozy up, and recharge. Humans, on the other hand, seem to do the opposite in our “always-on” culture. But, if you’re reading this, you’re probably ready to improve your sleep habits. And, your space is the perfect place to start.

Here’s how to refresh your room and set the stage for your best night of sleep yet.

Read more