Water lines & quality
Low water pressure diagnosis
Low pressure at one fixture is usually a clogged aerator or cartridge. Low pressure everywhere points to a failed pressure-reducing valve, a partly closed main valve, a service line leak, or corroded galvanized pipe.
- Cause diagnosed first
- Written price before work
- Permits pulled where required
- Clean-up included
We measure static and flowing pressure at the hose bib and inside, which tells us quickly whether the problem is the supply, the regulator or the house plumbing.
Low Water Pressure Diagnosis at a glance
- What it is
- Low pressure at one fixture is usually a clogged aerator or cartridge.
- Service category
- Water lines & quality
- Where
- 19 towns across the Charlotte metro (NC and York County, SC)
- Urgent service
- Scheduled service — call if water is actively leaking.
- Pricing
- Written price after diagnosis, before any work starts.
Signs you need low water pressure help
- Weak shower or faucet flow
- Pressure drops when another fixture runs
- Pressure dropped suddenly
- Banging pipes (pressure too high is also a problem)
The visit
What the visit involves
- 1
Measure
Pressure gauge readings at the main and fixtures.
- 2
Isolate
Check the main valve, pressure-reducing valve, service line and interior pipe.
- 3
Fix
Replace the regulator, clean fixtures, repair the leak or plan a repipe.
What affects the cost
We don't publish flat prices for work that depends on what we find. These are the things that move the number — you'll get a written price before any work starts.
- Regulator replacement vs. pipe replacement
- Access to the main and PRV
Low Water Pressure Diagnosis: common questions
What causes low water pressure?
The most common causes are clogged aerators or showerheads, a failing pressure-reducing valve, a partially closed shutoff, hidden leaks, and old galvanized pipe narrowed by rust.
What is normal water pressure for a house?
Most homes work well between about 40 and 60 psi. Pressure above 80 psi is generally too high and can stress fixtures, water heaters and supply lines; a pressure-reducing valve controls it.
Can water pressure be too high?
Yes. High pressure causes banging pipes, running toilets, dripping faucets and early failure of water heaters and appliance hoses. A gauge on an outdoor spigot tells you the static pressure.
Why is my water pressure low only on hot water?
Low pressure on hot water only points to the water heater or hot-water piping — commonly sediment in the tank, a partly closed heater valve, or a failing mixing valve.
Service area
Low Water Pressure Diagnosis across the Charlotte metro
Related
Related services
Main Water Line Repair
Yes, plumbers repair and replace the water service line between the meter and your house.
Learn more
Pipe Repair & Repiping
A single leak in otherwise sound pipe gets a spot repair.
Learn more
Faucet & Fixture Repair
Plumbers repair dripping faucets by replacing the cartridge or valve seat, and install new faucets and sinks — including the shutoffs and drain connections underneath..
Learn moreGuides
Helpful reading
Get help with low water pressure
Call for current availability — urgent leaks and backups are prioritized.