Main Water Line & Pressure Regulator Repair
A wet spot in the yard, banging pipes or pressure that’s too high or too low? We repair and replace main water lines and pressure-reducing valves to protect your whole plumbing system.
Protect Your Plumbing From the Street In
Water pressure in parts of the Las Vegas Valley can run well above the 80 psi limit most fixtures and appliances are designed for. A pressure-reducing valve (PRV) near your main shutoff brings it down to a safe level. When a PRV fails, high pressure stresses every pipe, water heater, toilet fill valve and faucet in the house.
We test your pressure with a gauge, replace failing PRVs and add expansion tanks where needed. We also repair and replace the main water line from the meter to your home when it leaks or is undersized.
Signs of a water line or pressure problem
- Banging or hammering pipesOften high pressure or a failing PRV.
- Leaking relief valve on the water heaterExcess pressure or a missing expansion tank.
- Toilets that run or refill on their ownHigh pressure pushing past fill valves.
- Low pressure throughout the houseA failing PRV, a leak or an undersized main line.
- Soggy yard or a spinning meterA leak in the line between the meter and the house.
Water Line & Pressure Services
Pressure testing
A gauge test so you know your actual pressure, not a guess.
PRV replacement
New pressure-reducing valves set to a safe, comfortable pressure.
Expansion tanks
Protecting your water heater and fixtures from thermal expansion.
Main line repair
Repairing leaks in the service line between the meter and the house.
Main line replacement
Replacing old or undersized lines with new pipe to code.
Main shutoff valves
Replacing stuck or leaking main shutoffs so you can control your water.
What Affects Water Line & PRV Cost?
We quote water line and PRV work in writing after testing and inspecting. Price depends on:
- PRV size and locationMost homes have the PRV near the main shutoff in the garage or front yard.
- Line length and depthThe distance from the meter to the house and what’s over the line.
- Landscaping and hardscapeRock, pavers or concrete that need to be removed and restored.
Pressure problems? Call 702-932-5755.
Frequently Asked Questions
What should my water pressure be?
Most homes do best between about 50 and 70 psi. Anything over 80 psi can damage fixtures, appliances and your water heater.
What does a pressure-reducing valve do?
A PRV lowers the incoming city water pressure to a safe level for your home. They wear out over time and should be checked if you notice banging pipes or running toilets.
Why is my water heater relief valve dripping?
It can be a sign of high pressure or thermal expansion. A failing PRV or a missing expansion tank are common causes.
Who is responsible for the main water line?
Generally, the homeowner is responsible for the line from the meter to the house, and the water utility is responsible for the meter and the street side. We repair the homeowner’s side.
Work With a Las Vegas Plumber You Can Trust
Homeowners, businesses and property managers across the valley call TPM for honest answers and work done right. Give us a call and see the difference.

