Address within 48–72 hours
Plumbing
Why is my water pressure low?
Low water pressure throughout your home has different causes than low pressure in just one faucet. Here's how to diagnose and fix it.
Most common causes
- 01Clogged aerator (single fixture)
- 02Partially closed shutoff valve
- 03Failing pressure regulator
- 04Corroded galvanized pipes reducing diameter
- 05Municipal supply pressure drop
- 06Hidden leak reducing pressure
What to do right now
1
If one faucet: unscrew and clean the aerator screen — often solves it instantly2
Check that the main shutoff and any secondary shutoffs are fully open3
Ask neighbors if they are experiencing similar pressure issuesWhen to call a professional
Call a plumber if: low pressure is throughout the home with clean aerators, pressure has dropped suddenly (possible leak), or you have galvanized pipes in an older home (they corrode from the inside).
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