Do Residential Homes Need Grease Traps?

Grease traps are designed to capture fats, oils, and grease before they can clog sewer lines. While they’re standard for many commercial kitchens, residential use is less straightforward. Whether a home “needs” a grease trap depends largely on local regulations and the household’s plumbing practices.

In most single-family homes, grease automatically enters the wastewater system after washing dishes and cooking—often without a trap. That’s because typical household volumes are generally lower and many communities rely on conventional sewer infrastructure to handle routine residential waste.