How do I fix a chipped porcelain sink?

Small chips in porcelain sinks can often be repaired with a porcelain repair kit, while larger damage typically requires professional refinishing or sink replacement.

For minor chips (smaller than a dime), you can use a two-part porcelain repair compound available at most hardware stores in Ottawa. Clean the chipped area thoroughly with rubbing alcohol, then mix the repair compound according to package directions. Apply it slightly overfilled, let it cure completely (usually 24 hours), then sand smooth with fine-grit sandpaper and polish to match the surrounding finish.

The key to a lasting repair is proper surface preparation and color matching. Most repair kits come with white compound, but you may need to add tinting agents if your sink isn't pure white. The repair area should be completely dry and grease-free before application. For chips near the drain or faucet area where water exposure is constant, consider using a marine-grade epoxy instead of standard porcelain repair compound for better durability.

Larger chips, cracks, or multiple damaged areas often indicate the sink is nearing replacement time. In Ottawa's older homes, original porcelain sinks from the 1950s-70s may have lead-based glazes, so extensive sanding should be done with proper ventilation and cleanup. If the chip has exposed the underlying metal and shows rust stains, the damage has likely compromised the sink's integrity.

Consider the sink's age and overall condition when deciding between repair and replacement. A quality undermount or drop-in sink replacement typically costs $400-800 installed, while refinishing an existing sink runs $300-600. If you're planning other bathroom updates, this might be the perfect time to upgrade to a more modern vanity and sink combination.

For extensive damage or if you're uncomfortable with the repair process, a bathroom renovation contractor can assess whether repair, refinishing, or replacement makes the most sense for your situation.