Why Does My House Smell So Bad?

Why does my house smell so bad

If your house smells musty, especially after rain or in humid weather, it could be a moisture issue. Look in your crawl space or basement for signs of standing water, damp soil, or mildew. Moisture problems under the home can lead to mold growth, wood rot, and even cause the smell to rise into the living space through the HVAC system or floorboards. A vapor barrier or dehumidifier can help if that’s the cause.