Shut Off Water Supply
10 minutesLocate angle stops under sink; close hot and cold valves.
Beginner1-2 hours
Fix Kitchen Faucet Leak Guide
Complete guide for fix kitchen faucet leak — step-by-step workflow, tools, checklist, and expert tips to get started.
DIY homeownersrenters with landlord approval
Workflow
Diagnose Leak Source
15 minutesIdentify leak at spout, base, or supply lines.
Replace Cartridge or Washer
45 minutesRemove handle; swap cartridge matching manufacturer model.
Restore and Pressure Test
15 minutesOpen shutoffs slowly; check for leaks at all joints.
Tools Used
Checklist
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Safety
Repair
Quality
Maintenance
Prep
Reference Materials
Faucet Leak SourcesTable
Key benchmarks for fix kitchen faucet leak.
| Location | Common Cause | Fix |
|---|---|---|
| Spout drip | Worn cartridge | Replace cartridge |
| Base leak | O-ring | Replace O-ring |
| Supply line | Loose nut | Tighten or replace line |
Pressure DropFormula
PSI loss = friction + elevation — verify adequate pressure at fixture after repair
IPC Fixture UnitsStandard
Each faucet counts as 1 fixture unit on residential branch sizing.
Replace Supply Lines Too
While under sink, swap old braided lines — they fail without warning.
Photo Before Disassembly
Phone photo saves hours if parts fall inside cabinet.
Overtightening Cracks
Hand-tight plus quarter turn on compression fittings only.
Safety Notes
- Residual pressure can spray when opening fittings — keep face clear.
- If shutoff valve fails, shut main house valve before proceeding.