There are a few reasons why there could be a weird smell coming from under your house. One possibility is that there is a dead animal or rodent in the area. If you can’t find the source of the smell, you may want to call a professional odor removal service. If you have a crawl space under your home, the smell could be coming from mold or mildew. These can be caused by moisture and lack of ventilation. Crawl spaces should be well-ventilated with minimal moisture present.
Another possibility is that there is a leak in your plumbing or sewage system. If you notice any water damage or mold growth, be sure to call a plumber or odor removal service right away.
Finally, the smell could also be coming from your HVAC system. If you have not had your ducts cleaned recently, dust and debris can build up and cause a musty smell. A professional odor removal service can clean your ducts and get rid of the smell.
If you are unable to identify the source of the smell, it is best to call a professional odor removal service. They will be able to locate the source of the smell and recommend the best course of action to eliminate it.