A leaking kitchen sink damages cabinets and flooring. A slow drain disrupts meal prep. A failed sprayer or loose faucet mount makes daily use frustrating. STL Plumbing Pros repairs kitchen sinks, drains, and fixture connections — identifying the exact problem and fixing it with lasting solutions. Need a new faucet? See our kitchen faucet installation service. For persistent drain clogs, our drain cleaning service can clear the line completely.
Common Kitchen Sink Problems
Leak under the sink — P-trap connection, basket strainer, or supply line.
Slow drain — grease, food debris, or branch line buildup.
Sprayer not working — diverter valve or hose failure.
Loose or wobbly faucet — mounting hardware needs tightening or replacement.
Water damage in cabinet — ongoing leak causing wood deterioration.
Our Process
Diagnose
We check all connection points under the sink — supply lines, P-trap, basket strainer, disposal connection, and dishwasher drain.
Repair
Fix the specific issue — tighten connections, replace gaskets, re-seat the basket strainer, or replace failed components.
Test
Run water at full pressure, check every connection for leaks, verify proper drain flow, and clean up the work area.
What Does Kitchen Sink Repair Cost?
| Service | Price Range | Details |
|---|---|---|
| P-Trap / Drain Connection Repair | $100–$200 | Fix leaks at slip-nut connections |
| Basket Strainer Replacement | $125–$225 | New strainer with proper seal |
| Supply Line Replacement | $100–$200 | New braided stainless supply lines |
| Sprayer / Diverter Repair | $100–$200 | Restore sprayer function |
| Sink Replacement (labor) | $250–$500 | Plumbing connections for new sink |
* Prices are estimates. We provide exact pricing after diagnosis. No hidden fees.
What Our Customers Say
"Leak under the kitchen sink was damaging the cabinet floor. They found a loose P-trap connection, fixed it, and dried everything out."
"Basket strainer was leaking. Quick replacement with proper putty — no more water under the sink."
"Kitchen sprayer stopped working. Replaced the diverter valve and hose — works perfectly now."