How Do I Find the Weird Smell Underneath My House

Many home and business owners are plagued with the issue of mysterious smells coming from under their structures. Whether you own a home, commercial space, or live in an apartment building, understanding the source of the odor and locating it will help you remedy the issue quickly.

### Identifying and Locating Odors

When trying to locate the source of a strange smell in your home, a systematic approach is needed. It is important to eliminate potential hazards first:

* **Ensure the smell is not natural gas.** If you smell a sulfurous odor, evacuate immediately and call 911. Natural gas leaks can be fatal.
* **Check for dead rodents.** Dead rodents can create a strong, unpleasant odor. Look around your home for evidence of rodents, such as droppings, gnaw marks, or nests. A pest control professional can assist in locating and removing dead rodents.
* **Inspect for mold.** Mold can grow in damp, dark places and produce a musty, earthy odor. Check areas with poor ventilation, such as basements, crawlspaces, and bathrooms. If you find mold, it should be cleaned up and the source of moisture eliminated.

### Why is There a Weird Smell Coming from Under My House?

**Sewer gas:** Sewer gas is a common cause of odors coming from underneath homes. It is created when bacteria decompose organic matter in the sewer system. Sewer gas can enter your home through cracks in the sewer pipes or floor drains. Inspect areas around drains, sinks, bathtubs, and toilets for signs of damage.

**Animal waste:** If you have pets, animal waste can accumulate under your home and cause an odor. Regularly clean up after your pets and ensure they do not have access to areas where they can defecate or urinate.

**Dead animals:** Dead animals can create a strong, pungent odor. Inspect your yard and under your home for any signs of dead animals. Remove the animal and dispose of it properly.

**Moisture problems:** Moisture problems can cause a variety of odors. Check for leaks in pipes, roofs, or walls. Fix any leaks and improve ventilation to prevent moisture buildup.