NapaSan provides sewage collection and disposal for homes in the City of Napa and surrounding unincorporated areas.

Family Sitting on Porch

Sewer Problems and Emergencies

Whether you have an emergency sewer back-up, need information about connecting to the sewer, need to know what NapaSan's rates and fees are, or want to learn more about pollution prevention, explore our site to find it.

Call Us

For sewer problems, call us first, at 707-258-6000, ext. 9. Day, night, weekends, or whenever, if you’ve got a problem with your drains, just call us first. If the problem is in our sewage mains or laterals, we can save you the cost of a plumber's visit. Our answering service will take your name, address, and telephone number, and a member of our crew will call you back or be on your doorstep within 30 minutes.

Our services are free of charge. Keep in mind that the sewer lateral from the property line to the house is the responsibility of the property owner. If the problem turns out to be in your section of the sewer line, you may still need a plumber’s help.