Water pressure is not consistent, and high demand in the mornings and evenings might cause the mains network to lose pressure.

When the pressure in the water main is insufficient to reach the top of the house, low pressure can result. This is extremely rare and may only occur in an emergency, such as a burst water main.

Why Low Water Preasure Happen

Whatever the pressure in our mains network is, the plumbing of your home's water pipes may reduce that pressure significantly by the time it reaches your taps.

Plumbing troubles on your water pipes could be the cause of any decrease in pressure within your home that is not impacting the cold kitchen tap. Low water flow is more likely to occur in properties with a shared supply.

When only one fixture has low water pressure, the problem is likely to be solved if you focus on that one fixture or the pipes that serve it. However, significant water pressure concerns that affect the entire house signal a different issue. If your home's water pressure is low, the first step is to figure out what's causing it.

Figuring out why you have low water pressure by checking;

  • Is the Water Meter Valve Fully Open?
  • Is the Main House Shutoff Valve Open?
  • Is the Pressure Regulator Failing?
  • Do You Have Old Steel Water Pipes?


Here are several common reasons why you may experience low of water pressure in your home:

  1. Too Much Water Demand: In some homes, having many plumbing fixtures on at the same time might put too much strain on the water supply, preventing proper water pressure from being maintained in all fixtures. You can typically prevent this problem with a little planning.
  2. Fixtures that are malfunctioning or clogged: Fixtures such as shower heads or faucets can become faulty or clogged over time. Cleaning the screen or aerator may be enough to solve the problem in some circumstances, but in others, a complete fixture may need to be replaced.
  3. Broken Pressure Regulator: Water pressure regulators are designed to help keep your home's water pressure within a specified range by stabilizing it. When these controls fail, your water pressure can become excessively high or excessively low.
  4. Closed Valves: Two separate valves can be used to turn off the water supply to your property. Both of these valves are self-checkable. If either of these valves is not fully open, the water pressure in your home will be affected.
  5. Clogged Pipes: If your pipes become clogged, the water flow through them will be disrupted. Water pressure will drop as the flow is disturbed. To solve the problem, pipes must be cleaned or replaced.
  6. Plumbing that has corroded: Cleaning or replacing small portions of piping can clear clogs. However, over time, your entire piping system might deteriorate, lowering your water pressure.


Low shower pressure can be caused by a blocked showerhead, a worn-out mixing valve, a closed valve, a leaking pipe, or even a defective hot water heater. But don't get too carried away; we're here to assist you restrict and identify the source of your shower issues.

How To Fix A Shower With Low Water Pressure

The first step is to figure out whether the low pressure is localized or widespread.

  • Is the hot and cold water in the shower affected?
  • Is the pressure on the sink faucet in the same bathroom low as well?
  • Is there anyone else in the room who seems to be concerned about the same thing?

With the answers to those questions in mind, you can begin to look into the common causes of low shower pressure.

  1. A Clogged Showerhead

Mineral deposits can build up over time inside the showerhead's small holes, obstructing or halting the flow of water. Allow the showerhead to soak in a basin or bag filled with vinegar overnight to eliminate the mineral buildup. Next, brush or poke any remaining dirt from the showerhead holes with a tiny instrument.

  1. Showerhead With A Low-Flow Setting

While saving water is a benefit, vintage low-flow showerheads might be overly sparing with water, resulting in a lack of pressure. Fortunately, replacing the old showerhead with a new type is a simple do-it-yourself project.

  1. A corroded mixing valve

If you have a single-handle shower or tub faucet, it may contain an internal mixing valve that regulates the amount of hot and cold water that is fed to the showerhead. It can shake off the temperature and pressure if that valve is stuck or worn out. Because accessing and replacing the mixing valve might be challenging, it should be left to a trained plumber.

  1. The valve is closed.

There are a lot of valves in your pipes system. If any of them are partially blocked by accident, you may have reduced water pressure. Check that the water meter valve, the principal shutdown valve, and the inline valves are all fully open.

  1. A problem with the water heater

If the low water pressure occurs just when you turn on the hot water, your water heater may be the source of the problem. Consult a plumber to determine whether the unit needs to be fixed or replaced.

  1. Water pressure regulator that isn't working properly

The water pressure regulator's job is to maintain a safe water pressure range in your home (generally 46-60 psi). This critical component can fail, causing the pressure to drop to dangerously low or high levels. The water pressure regulator is usually found on the water supply pipe before it enters the property and should only be replaced by a licensed plumber.


Water Pressure Regulator Replacement

The cost of replacing a water pressure regulator ranges from $250 to $350. The part costs about $50 on average, with the remainder being labor. Installing it takes roughly three hours.

How much it cost to raise water pressure.

The average cost of a pressure booster is roughly $800, not including the cost of labor to install the device, but depending on the features and size of the booster kit you choose, the cost can rise to over $1,000. There's no need to be inconvenienced by low water pressure.

Aside from the above, how much does a plumber charge to replace a shower valve? The cost of replacement is not prohibitively expensive because a competent plumber can install one in less than two hours. Overall, a DIYer can spend 4-6 hours and $135 to replace a shower valve, whereas a professional can install one in about 2 hours for $375- $575.