Water Supply Line Services

Water Supply Line Repair & Replacement in Salem, OR

Does this sound like your situation?

If any of these match what's happening at your home, call us — we can usually diagnose over the phone and give you honest guidance on next steps.

Low water pressure throughout the entire house, not just one fixture
Discolored water with a rust or brown tint from both hot and cold taps
Water meter spinning when all fixtures and appliances are turned off
Soft, wet, or sunken ground near the water meter or main supply line path
Sudden drop in water pressure after years of normal flow
Visible green or white corrosion on exposed supply pipes in the crawl space

Most common causes

Corroded galvanized pipe

Homes built before 1980 in Salem often still have galvanized steel supply pipes that corrode from the inside out, narrowing flow dramatically over decades.

Main supply line leak

The underground supply line from the street meter to the house can develop leaks from root pressure, ground settling, or age — especially older copper or galvanized lines.

Pressure regulator failure

Salem's municipal water pressure is regulated at the entry point. A failed PRV causes either very high pressure (damaging to fixtures) or very low pressure.

Pipe scale

Mineral deposits from Salem's water build up inside supply pipes, gradually reducing diameter and flow rate.

Undersized supply lines

Undersized supply lines in older homes or additions create chronic low pressure under load that no adjustment can fix without re-running the lines.

Water Supply Line Services in Salem, Oregon

Your home's water supply system runs from the city meter at the street into every fixture in your house. When that system corrodes, leaks, or loses pressure, the effects show up everywhere — not just at one faucet.

Spectrum Plumbing diagnoses and repairs the full supply chain: from the service line at the meter through the main interior trunk lines and into branch lines serving each fixture.

Diagnosing Low Water Pressure

Low pressure in Salem homes most commonly comes from one of three sources:

Failed pressure regulator (PRV): Most Salem homes have a pressure-reducing valve at the main entry. When it fails, you get either very low pressure or uncontrolled high pressure (over 80 PSI), which damages fixtures and water heaters over time.

Corroded galvanized pipe: Homes built before 1975 in Salem often have original galvanized steel supply pipes. These corrode from the inside out — they look fine from the outside while the interior diameter has shrunk to a fraction of its original size.

Main line issue: A slow leak or partial obstruction in the underground service line causes whole-house low pressure that gets progressively worse.

When to Repair vs. Repipe

A single section of corroded or damaged pipe can often be cut out and replaced with copper or PEX. But when corrosion is present throughout the system — multiple sections failing, multiple pinhole leaks, persistent discolored water — a full repipe is the right answer. More upfront, but the last plumbing expense you'll have for decades.

We serve Salem, Keizer, and surrounding communities. CCB #255529.

Here's how we work the job

Diagnose the failure — meter test, pressure gauge at entry, visual inspection of accessible pipe
Locate any active leak using meter isolation testing
Recommend repair, section replacement, or full repipe depending on the extent of damage or corrosion
Obtain any required permits for main line or service line work
Restore water service and test pressure at multiple points throughout the home

Frequently asked questions

Why is my water pressure suddenly low throughout the whole house?

Whole-house pressure loss usually points to the pressure regulator, a main line issue, or a significant leak somewhere in the supply system. If only one fixture has low pressure, that's a different problem. Call us — we can often narrow it down over the phone.

How do I know if I have a main line leak?

Turn off every fixture and appliance in the house and watch your water meter for 15 minutes. If the dial is still moving, water is leaking somewhere — most likely the main supply line if you can't find anything running inside.

When should I consider repiping instead of repairing?

If your supply lines are original galvanized steel and you're seeing low pressure, discolored water, or pinhole leaks in multiple locations, section repairs become a temporary fix. Full repiping with PEX or copper solves the problem once and improves home value.

Do you handle Salem city water permits for supply line work?

Yes — work on the service line between the meter and the house typically requires permits and backflow compliance. We handle the paperwork and coordination with the city.

Request service

Fill out the form and we'll get back to you promptly. For urgent issues, call us directly at (503) 917-3259.

Licensed & insured — CCB #255529
Serving Salem, Keizer, and the Willamette Valley
Mon – Fri 8:00am – 5:00pm