Low water pressure inside your home can be a common issue that affects many plumbing fixtures, including faucets, toilets, dishwashers, and washing machines. Unfortunately, you may not realize how much you rely on the water until you encounter an issue that causes plumbing problems. In the worst cases, you may not have access to water for an extended period until you call for plumbing repairs.

When you have low water pressure inside your home, water trickles out of your faucets instead of spraying at the speed and volume it usually does. To fix the issue, it’s essential to understand some of the causes of low water pressure inside your home. 

As the leading plumbing repair technicians in Upland, CA, we have extensive experience helping homeowners solve their low water pressure issues. Whether you need routine or emergency plumbing repairs, count on AYS Plumbing & Rooter for quick and effective solutions.

What Causes Low Water Pressure?

Dealing with low water pressure inside your home can make it frustrating to perform tasks in your daily routine. In addition, it can cause a significant increase in your home’s monthly water bill. 

Your home may include a water pressure gauge somewhere in your water line to allow you to check it with a simple glance. Here are a few of the most common causes of low water pressure. 

Running Multiple Water Fixtures

Running two or more water fixtures at once can cause water pressure in your home to decrease. This situation occurs because your water supply can only distribute a certain amount of water to your plumbing system at a given time. If dividing your water supply causes a drop in water pressure, turning off multiple fixtures should increase water pressure again.

Debris Buildup in Pipes

Debris, such as dirt, solidified oil, grease, and food particles, may accumulate in your water pipes over time. In addition, breakages in the water main can cause pollutants to back up and block your pipes. When there is less space for water to travel through, this can result in low water pressure inside your home.

Water Meter Valve

When your home’s water meter valve is partially closed, this can cause low water pressure inside your home. If you have recently had plumbing services in your home and have low water pressure, check to ensure the water meter valve is fully open. As one of the two main shutoff valves connected to your home, your local water company most likely owns it.


If your plumbing system has corroded pipes, it can result in oxidation that collects on interior pipe walls, restricting water flow. Similar to mineral scaling, this is a common problem in older galvanized steel pipes. Corroded pipes usually develop holes until they eventually fail.

Water Shutoff Valve

The water shutoff valve controls the flow of water into your home. If your shutoff valve isn’t fully open, it will decrease your home’s water pressure. Reopening the main shutoff valve should resolve your home’s low water pressure issues.

Contact AYS Plumbing & Rooter for Low Water Pressure Issues Today!

If you’re frustrated by low water pressure inside your home, we can help you fix the problem. As a highly-respected plumbing company in Southern California, we have a certified professional team specializing in routine and emergency plumbing repairs.

In addition, we provide complete drainage system repairs in Ontario, CA, to keep your home’s plumbing and sewer systems in excellent condition. Contact us today to schedule an appointment!

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