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Low Water Pressure? Start Here
Weak water pressure is one of about eight things. This site helps you work out which, before you pay anyone.
PressureTrace is a referral service, not a plumbing contractor. We connect homeowners with independent contractors. Contractors are required to hold whatever credential their state or municipality demands. Every state page sets out who licenses plumbers there and where to check, so you can confirm before work begins. We do not perform plumbing work, we do not set prices, and we never charge homeowners anything — the contractors in our network pay us when we route them a call.
The first question is whether every tap is weak or just one. Normal supply is 45–80 psi and under 40 psi is low — test it in a minute. Whole house is a supply problem worth a call; one tap is usually a job you can do yourself.
Work out what is causing it
- Low Water Pressure Through the Whole House
- Low Water Pressure at One Tap Only
- How to Test Your Water Pressure in About a Minute
- Cleaning a Blocked Aerator
- When the Pressure-Reducing Valve Is the Problem
- Galvanized Supply Pipe and Weak Water Pressure
- When the Main Shut-Off Is the Whole Problem
- Why Pressure Is Worse Upstairs
- Low Pressure on the Hot Side Only
- Polybutylene Supply Pipe
- Pressure Drops as Soon as Two Fixtures Run
- What This Work Costs, and Why Nobody Will Quote You Online
- Where We Route Calls
What your build era predicts
Supply pipe by era, from pre-1940 to today.
Where we route calls
- Arkansas
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- Maine
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- Missouri
- Mississippi
- North Carolina
- New Hampshire
- New Jersey
- New Mexico
- New York
- Ohio
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- Pennsylvania
- Rhode Island
- South Carolina
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- West Virginia