Sink repair begins by locating where water is escaping or why flow is restricted. A provider may inspect the faucet, supply connections, drain assembly, trap, basin, seals, and cabinet before recommending a part or a larger repair. Describing when the symptom occurs can make the assessment more useful.
The First Questions
Expect questions about whether the problem is a leak, clog, odor, low flow, loose fixture, crack, or damaged seal. Timing matters: a supply leak can continue when the faucet is off, while a drain leak may appear only as water leaves the basin. Mention whether other fixtures are slow or backing up.
Faucet and Supply Problems
Drips from the spout, handles, base, shutoff valves, or flexible hoses have different repair paths. Mineral buildup can affect cartridges and aerators, while worn hoses or valves may need replacement. A provider may check pressure, connections, corrosion, and whether the sink cabinet has already suffered water damage.
Drain and Trap Problems
A slow drain can come from a local obstruction, a trap, a drain stopper, or a deeper branch line. A leaking trap or basket strainer may need a new seal or fitting. Repeated chemical treatments can damage some materials and do not explain why a drain keeps backing up, so describe previous attempts.
Basin, Mounting, and Seals
A cracked basin, loose sink, failed rim seal, or damaged mounting clip can allow water into the cabinet or wall. Tightening a fixture does not repair a cracked surface or deteriorated support. The provider may need to determine whether the sink can be repaired or whether replacement and countertop compatibility should be considered.
Prepare Without Making Damage Worse
Remove stored items and place a container under a small leak if safe. Photograph wet areas before they dry and note whether the leak follows faucet use, draining, or movement. Do not overtighten plastic nuts, use sharp objects on seals, or apply caulk over an active leak without identifying its source.
After the Repair
Testing should include running water, filling the basin, draining it, and checking supply and drain connections. Look inside the cabinet afterward and monitor the area during the next few uses. If staining, swelling, odor, or repeated leakage remains, report it rather than assuming the fixture is fully resolved.