What’s the Difference Between a Laundry Sink With and Without an Overflow?

A laundry sink with an overflow has an additional outlet near the top of the bowl. If the water rises too high, it redirects excess water through the overflow rather than letting it run over the sink edge.

A sink without an overflow does not have that extra outlet. It can still work perfectly well, but it doesn’t provide the same extra protection if a tap is left running or the drain is blocked.

We stock both types of laundry sink, and would consider an overflow if you regularly soak clothes, fill the tub, or simply want a bit more reassurance in a busy household.

It’s still important to check the exact model and have your plumber confirm the waste and overflow plumbing requirements before installation.

Compare laundry sinks with overflow and the broader laundry sink range at Buildmat.