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Why Is My Hot Water Pressure Low?

Few plumbing problems are more frustrating than turning on the tap and watching your hot water trickle out. If the pressure isn’t what it used to be, you’re not alone—low hot water pressure is a common issue for homeowners. Here’s what might be causing it and how to fix it.

Common Causes of Low Hot Water Pressure

Several plumbing issues can reduce your hot water pressure:

• Mineral buildup: Over time, sediment and scale can clog your water heater or hot water pipes.

• Old pipes: Corrosion and narrowing inside aging pipes restrict water flow.

• Partially closed valves: A shutoff valve near your water heater may not be fully open.

Hot Water Pressure vs. Cold Water Pressure

Pay attention to whether the issue affects only hot water or both hot and cold:

• Low hot water pressure only: Likely related to your water heater or hot water line.

• Low pressure everywhere: Could indicate a larger plumbing issue.

Try testing different fixtures, like your shower and kitchen sink, to see where the problem occurs.

How Your Water Heater Can Affect Pressure

Your water heater plays a major role in water flow. Common heater-related issues include:

• Sediment buildup in the tank: Blocks water flow and reduces pressure.

• Scale buildup in tankless systems: Restricts efficiency and slows water.

• Old or undersized heaters: May not keep up with your household’s demand.

DIY Fixes to Try First

Before calling a plumber, try these simple steps:

• Clean faucet aerators and showerheads to remove mineral deposits

• Check the shutoff valve near your water heater to confirm it’s fully open

• Inspect visible pipes and the heater itself for leaks

When to Call a Plumber

If you’ve tried basic fixes and the problem persists, it’s time to call a professional. A plumber can help if:

• Multiple fixtures in your home have low pressure

• You notice pipe damage, rust, or leaks

• You suspect your water heater is failing

The experts at Carbone The Plumber Heating & Air can quickly diagnose the problem and restore your hot water pressure.

Frequently Asked Questions

Why is my hot water pressure low in just one faucet?
It’s often caused by a clogged aerator or a blockage in that faucet’s hot water line.

Can my water heater cause low pressure?
Yes. Sediment, scale, or a faulty valve can all affect water pressure.

How do I fix low hot water pressure?
Start with cleaning aerators and checking valves. If that doesn’t work, call a plumber for inspection.

Could a leak be the cause?
Yes. A leak in your hot water pipes or tank can lower water pressure.

Do I need to replace my water heater?
If your heater is old, corroded, or undersized, replacement may be the best solution.

Hot Water Plumbing Service

Don’t let low hot water pressure disrupt your daily routine. Carbone The Plumber Heating & Air offers same-day service to diagnose and fix hot water problems quickly.

Call today for fast hot water plumbing service and get your water flowing strong again!