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If your sink is on an exterior wall that isn’t insulated, or if pipes travel through a cabinet against an exterior wall that prevents heated air from circulating around the pipes, the pipes can freeze, causing them to burst. The best way to avoid leaking sinks is to insulate the pipes and open cabinets in the short term to warm the water line up and prevent freezing.

Yes, if you live in a climate with extended periods of frost or snow, it’s best to winterize the sink and avoid potential bursting. Similar to winterizing a garden hose, turn off your water from the source. Once turned off, open the faucet so the remaining water completely drains out. You can also pour a small amount of antifreeze down the sink drain so any trapped water won’t freeze.

Since pedestal sinks are narrow and don’t have a cupboard to conceal pipes, many homeowners change their plumbing to make it less visible. It’s a big reason why installing a pedestal sink is more labor-intensive than other types.

The cost to fix a leaky pipe ranges depending on location—the easier the pipe is to access, the less expensive the repair will be. Because a leaky pipe under the sink is typically an exposed pipe, this is one of the least expensive repairs for a plumber to do, often costing between $150 to $300 to fix, on average.