Symptoms
- Puddle forms around the faucet base after use
- Countertop near the faucet feels perpetually damp
- Caulk around the base looks cracked or missing
- No leak visible under the sink
Likely causes
- CommonFailed or missing caulk/putty seal at the baseThe seal between faucet and counter degrades over years and lets water seep under.
- CommonLoose deck plate or base gasketOn faucets with a separate base plate, its seal can fail independently.
- PossibleWater splashing rather than an actual leakSometimes it's just normal splash pooling near the base, not a leak at all.
- Less commonCrack in the faucet body itselfMore likely on older or lower-quality faucets.
What to do
- Dry the counter completely and run the faucet normally to see if water actually pools at the base or if it's splash from use.
- If it's a real leak, remove the faucet handle and check the O-ring or gasket seal where the spout meets the base.
- Check underneath for any missing caulk or plumber's putty around the base mounting.
- Clean off any old, cracked caulk and let the area dry fully.
- Apply a fresh, thin bead of kitchen and bath silicone caulk around the base, smoothing it evenly.
- Let the caulk cure fully per the label instructions before running water in that area again.
- Recheck after a few uses to confirm no more pooling.
Tools and parts
- Utility knife
- Silicone caulk
- Caulk gun
When to call a pro
Call a plumber if the leak continues after recaulking, since the faucet body or internal gasket may need replacement.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.