How a sink drain is put together
The drain body sits in the basin and connects to a tailpiece, which leads to the trap. The trap holds water to block sewer gas, and the seals keep wastewater inside the pipe. If the assembly fails, see our drain repairs service.
When a seal or the drain body fails, water escapes under the cabinet instead of draining away.
Repair or replace
A loose drain nut can sometimes be tightened, but a cracked body or corroded seal needs replacement. Replacing the assembly is usually the lasting fix once the metal has failed, and our toilet replacement service can handle it.
For larger decisions on pipes and sewer lines, see our guide on when repair beats replacement.
Paying for the work
Small drain replacements are usually handled as a per-job service call.
Call us to discuss the options for your job.