Possible Reasons for Low Water Pressure in the House
Thursday, May 29th 2025, 6:01 PM

Plumbers in Somerset, MA, discuss possible causes of low water pressure at home.

Swansea, United States - May 29, 2025 / Quahog Plumbing /

What Causes Poor Water Pressure?

If household residents are frustrated with poor water pressure from plumbing fixtures, they may be wondering what is causing it. It’s important to investigate low water pressure because it can indicate an underlying problem with the home’s plumbing, such as a water leak. This post will discuss some possible causes of low water pressure.

Faulty Fixtures or Closed Valves 

shower head Diagnosing low water pressure often starts with determining whether the problem affects a single fixture or the entire home. When water pressure decreases at just one fixture, like a faucet or showerhead, the issue typically lies with that specific fixture. Mineral buildup can gradually clog and restrict water flow in the fixture. This localized pressure problem usually has a straightforward fix. Cleaning or replacing the affected fixture can restore normal water flow.

However, when experiencing weaker water pressure throughout the house, partially closed valves could be the culprit. After recent plumbing or maintenance work, the main water shutoff valve or water meter valve might have been accidentally left in a partially closed position. These critical control points regulate water flow to the entire property. Homeowners can check these valves before calling a plumber to see if that fixes the home’s water pressure issues. Finding and fully opening these valves may provide an immediate pressure boost without professional assistance.

Water Leaks

leak Water leaks can also reduce water pressure throughout a home’s fixtures. When pipes develop cracks or connections fail and water leaks from the line, some water escapes before reaching its intended destination. This diverted water flow means less water pressure at fixtures. Besides reduced water pressure, other signs can also point to a water leak, such as high water bills and the sound of water running when plumbing fixtures are turned off.

If homeowners suspect a leak due to low water pressure or other signs, they should call a plumber immediately. Professional water leak detection can identify these hidden leaks before they cause any more damage. Water continuously seeping from damaged pipes can damage the home and foundation, create mold problems, and spike water bills. Normal water pressure should be restored once the water leak repair is complete.

Clogs and Buildup 

Buildup and clogs in the water lines can also cause low water pressure from fixtures. Over time, water lines can accumulate debris, sediment, and mineral deposits that gradually restrict water flow. This buildup creates narrower pathways for water to travel through. The result is weaker water pressure when people turn on their faucets or showers.

The aging process of pipes can also significantly contribute to clog formation. Older pipes are particularly susceptible to internal corrosion, which creates rough surfaces where minerals and debris can more easily attach. Additionally, homes with hard water can experience accelerated buildup because hard water contains high concentrations of minerals such as calcium and magnesium. Not only can plumbers fix a household’s water pressure issues, but they can also install a water softener to soften hard water.

About Quahog Plumbing

Quahog Plumbing is a trusted plumbing company that has been serving the Somerset community for more than 15 years. They provide rapid service, straightforward pricing, and the latest technology. Call them for plumbing services in Somerset, MA.

Contact Information:

Quahog Plumbing

2135 Grand Army of the Republic Hwy
Swansea, MA 02777
United States

Dale Lima
(401) 307-5451
https://www.quahogplumbing.com/

About

Quahog Plumbing is proud to be your trusted Dighton, MA plumbing company. We take deep pride in our workmanship and the superior customer service we provide for our customers.

Contact

Dale Lima
Quahog Plumbing

2135 Grand Army of the Republic Hwy
Swansea, MA, 02777, United States

E-Mail info@quahogplumbing.com

Phone (401) 307-5451

Website

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