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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.

Hairline cracks—tiny cracks in the surface—in porcelain sinks can happen due to age, chemical damage from cleaning products, dropping heavy objects on the sink, thermal shock from drastic temperature changes, stress during repairs, and manufacturing errors. Hairline cracks often start very small and grow longer and wider over time. While they may appear problematic, hairline cracks don’t indicate structural problems and may not impact the performance of sinks. However, they can eventually cause water leaks and mold growth if left to grow.

Yes, plumber's putty ensures a solid bond between the drain assembly and sink. Silicone is a good alternative if you prefer not to use plumber's putty. However, plumber's putty typically isn't visible from the outside of the drain, as you can wipe away any excess when done.

Hiring a professional for plumbing repair costs about $325 on average. Depending on the repair, the price range for plumbing repair can be as low as $75 up to $4,000 or more. A major cost factor is the plumber’s expertise level:

• Handyperson with varying experience: $25–$75 per hour

• Apprentice with less than four years of experience: $45–$90 per hour

• Journeyperson with over four years of experience and passed a state exam: $60–$110 per hour

• Master plumber with more than seven years of experience and a state exam: $80–$200 per hour