Low Home Water Pressure: Common Causes and Fixes

Low water pressure is a frequent home maintenance complaint, and the cause can range from a minor blockage to a system-wide water-supply problem. The key is figuring out whether the pressure drop is limited to one faucet or affects the entire house—because that determines where to look first.

Start by testing multiple fixtures. If only one tap (such as a kitchen sink) is weak, the issue is often confined to that fixture or its supply line. If pressure is low at every faucet and shower, the problem may involve the home’s main shutoff valve, a pressure regulator, sediment buildup, or the municipal supply.