Low Water Pressure
Find out why your water pressure is low, what you can check yourself, and when to call a professional.
Quick Answer
Low water pressure is often caused by a fixture-level restriction, a partially closed valve, a pressure-regulator issue, a leak, or a wider supply-side change. Start by identifying where the pressure is low, then compare hot and cold flow before assuming the whole house has the same problem.
On This Page
Key Facts
Where is it low?
One fixture, hot side only, whole home, or nearby homes.
Compare hot and cold
A hot-side-only issue points to a different diagnostic path.
Timing matters
Sudden and gradual changes should not be treated the same way.
Provider or property?
Utility-side and property-side causes need different next steps.
Where is the pressure low?
One Fixture
Check one sink, shower, or toilet first.
Hot Water Only
Cold is normal, hot is weak.
Whole House
Low pressure throughout the home.
Nearby Homes
Could be a utility-side issue.
Common Causes
What This Problem May Mean
Possible causes range from a partially closed valve or clogged aerator to supply, pressure-regulator, or piping problems.
What You Can Check
When to Stop
- Sudden whole-home pressure drop.
- Visible leaks or water damage.
- Discolored water with pressure changes.
When Professional Help May Make Sense
If the pressure change is sudden, affects the whole home, or is accompanied by leaks, professional assessment may be appropriate.
Need location-specific context?
Provider boundaries, utility rules, weather, and local water conditions can change the next step. Use the statewide and area guides only when location actually changes the decision.
What to Have Ready Before You Call
Sources Used
- Texas Commission on Environmental QualityPressure Maintenance and Capacity
- Texas Commission on Environmental QualityTexas Drinking Water Viewer
How this guide was prepared
HomeService Path separates general homeowner observations from provider-specific or property-specific evidence. The page does not diagnose a specific home, promise a repair outcome, or replace current utility instructions, manufacturer guidance, or professional inspection.