Understanding Water Pressure in the Niagara Region: Causes and Fixes
- Alex M
- Mar 27
- 3 min read

Water pressure plays a crucial role in your plumbing system, ensuring that water flows efficiently to your fixtures and appliances. Too high or too low water pressure can lead to a variety of issues, from damaged pipes to weak showers. In this blog, we’ll cover the common causes of water pressure problems and how to fix them for homeowners in the Niagara Region, including St. Catharines, Niagara Falls, Welland, Thorold, Fort Erie, Port Colborne, Grimsby, Beamsville, Lincoln, and Pelham.
Common Causes of Low Water Pressure
1. Clogged Pipes
Over time, mineral buildup, rust, or debris can accumulate in your pipes, restricting water flow and leading to reduced pressure. If you notice a gradual decrease in water pressure, clogged pipes could be the issue.
2. Leaks in the Plumbing System
A hidden leak can significantly reduce water pressure. If you notice wet spots on walls, ceilings, or floors, or if your water bill suddenly spikes, you may have a leak that needs immediate attention.
3. Faulty Pressure Regulator
A pressure regulator is a device that controls the water pressure entering your home. If it fails, you may experience pressure that is either too high or too low. Replacing the regulator can often solve the issue.
4. Municipal Supply Issues
Sometimes, the problem isn’t within your home but rather with the local water supply. Contact your water provider to see if maintenance work or supply issues are affecting your area.
5. Corroded or Old Pipes
Older galvanized steel or lead pipes can corrode over time, narrowing the passage for water and reducing flow. If your home has outdated plumbing, a repipe may be necessary.
Common Causes of High Water Pressure
1. Faulty Pressure Regulator
Just as a broken pressure regulator can cause low pressure, it can also result in excessively high pressure, which can damage pipes and fixtures.
2. Thermal Expansion
When water is heated in your water heater, it expands. Without an expansion tank, this pressure can build up and lead to high water pressure throughout the system.
3. Municipal Supply Pressure is Too High
In some areas, the city water supply pressure may be too high. Installing a pressure-reducing valve (PRV) can help regulate incoming pressure and protect your plumbing.
How to Fix Water Pressure Issues
For Low Water Pressure:
Check for leaks: Inspect visible plumbing for any signs of leaks and repair them as soon as possible.
Clean faucet aerators and showerheads: Mineral deposits can clog fixtures, reducing water flow. Cleaning or replacing them can help.
Flush the water heater: Sediment buildup in the water heater can restrict flow. Regular flushing can improve performance.
Replace old pipes: If corrosion is the issue, replacing outdated pipes with modern materials like PEX or copper can restore water pressure.
For High Water Pressure:
Install or replace a pressure regulator: A properly functioning regulator will keep pressure at a safe level.
Add an expansion tank: If your home has a closed plumbing system, an expansion tank can prevent pressure spikes.
Monitor with a pressure gauge: Checking your home’s water pressure regularly (ideal range is 40-60 psi) can help detect issues early.
When to Call a Professional
If you’re unable to determine the cause of your water pressure issue or need assistance with repairs, it’s best to call a licensed plumber. A professional can diagnose and fix the problem efficiently, preventing further damage to your plumbing system.
For homeowners in St. Catharines, Niagara Falls, Welland, Thorold, Fort Erie, Port Colborne, Grimsby, Beamsville, Lincoln, and Pelham, professional plumbing services can ensure your water pressure is properly regulated and your home’s plumbing system is in top condition.
Conclusion
Water pressure issues can be frustrating, but understanding the causes can help you find the right solution. Whether it’s a clog, a leak, or a faulty regulator, addressing water pressure problems early can prevent bigger plumbing issues down the road. If in doubt, don’t hesitate to reach out to a professional plumber for expert advice and service.
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