Why Is My Water Pressure So Low? 5 Common Causes (and How to Fix Them)

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Whether it’s a weak shower, a sluggish kitchen faucet, or a washing machine that takes forever to fill, low water pressure is more than just an annoyance—it’s often a warning sign that something’s wrong in your plumbing system.

If you're in Tyler or East Texas, here are the five most common reasons behind low water pressure and how the trusted pros at Bannister Plumbing can help you fix them fast.

1. Clogged Pipes

Over time, minerals from hard water, rust, or sediment can build up inside your pipes, gradually narrowing the space water can flow through.

Signs of clogged pipes include:

  • Gradual pressure loss in one or more fixtures

  • Discolored or metallic-tasting water

  • Visible corrosion on exposed pipes

If you live in an older home, it may be time for a plumbing inspection to check for buildup inside your lines.

2. Hidden Leaks in the Plumbing System

Leaks aren’t always visible. A crack behind a wall or slab leak beneath your foundation could be stealing your water pressure—and costing you money on your water bill.

Watch for:

  • Sudden pressure drops

  • Water stains on walls or ceilings

  • A constantly running meter even when water is off

Bannister Plumbing uses advanced leak detection tools to locate and repair hidden leaks before they cause serious damage.

3. Faulty Pressure Regulator

Many homes in East Texas have a pressure regulator that controls the water pressure entering the home. When it fails, it can cause sudden drops or surges in pressure.

Symptoms of a faulty regulator:

  • Very low or very high water pressure throughout the home

  • Water hammer or noisy pipes

  • Fixtures wearing out faster than usual

If your regulator is malfunctioning, Bannister can replace it quickly and restore steady pressure.

4. Corroded or Outdated Pipes

If your home was built decades ago and still has galvanized steel or aging copper pipes, corrosion could be restricting water flow.

Time for replacement if:

  • Pipes are over 40 years old

  • You’ve had frequent leaks or repairs

  • You see rust-colored water or inconsistent flow

Repiping sections—or your whole home—can solve chronic water pressure issues for good.

5. Municipal Water Supply Problems

Sometimes, the issue isn’t inside your home. City water maintenance, a shared neighborhood system, or hydrant flushing can all cause temporary drops in water pressure.

Before calling a plumber, ask your neighbors: Are they noticing low water pressure too? If so, the problem may be temporary and outside your control.

How Bannister Plumbing Can Help

Water pressure issues aren’t just inconvenient—they’re often a symptom of a larger plumbing issue. The expert team at Bannister Plumbing offers:

  • Thorough plumbing inspections

  • Emergency service throughout Tyler and East Texas

  • Upfront pricing with no surprise fees

  • Honest, local technicians who care

Frequently Asked Questions (FAQs)

Is low water pressure dangerous?

Not usually—but it often signals a bigger issue like a leak, corrosion, or clog. Catching it early can prevent costly water damage or pipe failure.

Can I fix low water pressure myself?

You can check for clogged faucet aerators or verify the main shut-off valve is fully open. But if those don’t solve the issue, it’s best to call a licensed plumber.

What’s considered normal water pressure for a home?

Typical residential water pressure is between 40 and 60 psi. Anything lower than 40 may feel weak and affect appliances.

Why is the water pressure low in just one faucet?

This could be a clogged aerator, a localized pipe issue, or a faulty fixture. If multiple fixtures are affected, the issue is likely deeper in your plumbing system.

How much does it cost to fix low water pressure in Tyler, TX?

Costs vary based on the cause. Bannister Plumbing offers free estimates and will diagnose the issue before recommending the most cost-effective solution.

Don’t Let Water Pressure Problems Linger

If low water pressure is disrupting your day, Bannister Plumbing is here to help. Our licensed East Texas plumbers can diagnose the issue and restore your water pressure quickly and affordably.

Call Bannister Plumbing today or schedule service online to get things flowing again!