Whole House Repiping in Des Moines, WA
Eliminate low water pressure, discolored rusty tap water, and recurring pinhole leaks. Washington Plumbing replaces outdated galvanized steel and corroded copper lines with clean, durable Uponor PEX-a piping systems.
Clean, Efficient Repiping Process
Our repiping specialists protect your home, keep daily water disruptions minimal, and restore powerful, crystal-clear water flow.
- Complete removal of legacy galvanized iron pipe networks
- Installation of commercial-grade Uponor PEX-a expansion piping
- Dedicated quarter-turn shutoff valves at all fixtures
- New pressure reducing valves (PRV) and main shutoffs
- Professional drywall access patching and restoration
Why 1950s-1970s Des Moines Homes Need Repiping
The science of internal pipe tuberculation and why galvanized steel inevitably restricts water flow.
A substantial portion of Des Moines residential neighborhoods—including mid-century ramblers in North Hill, coastal residences in Woodmont, and daylight basements along Marine View Drive—were constructed with threaded galvanized iron water pipes. While galvanized steel has exceptional structural strength, its internal zinc coating corrodes over 40 to 50 years of contact with municipal water.
As the zinc wears away, the underlying iron rusts, forming dense mineral nodules called tuberculation. Over time, a 3/4-inch water pipe can become restricted to the diameter of a drinking straw. This internal choking severely throttles water flow whenever multiple fixtures run simultaneously, such as a toilet flushing while someone is taking a shower.
Telltale Warning Signs of Aging Pipes:
- Severe Pressure Drops: Water flow drops to a trickle in the shower when the garden hose or dishwasher turns on.
- Brown, Yellow, or Metallic Water: Discolored water running from taps first thing in the morning due to overnight rust accumulation.
- Frequent Pinhole Leaks: Damp spots on ceiling drywall or wet subfloors requiring repetitive emergency patching.
- Mineral Scale Clogging Aerators: Sink faucet aerators and washing machine inlet screens frequently choked with rust flakes.
- Deteriorated Gate Valves: Main water shutoffs that will not turn or seize completely during a leak.
Uponor PEX-a vs. Traditional Copper
While copper was the historical standard, modern cross-linked polyethylene (PEX-a) offers superior longevity and reliability for Pacific Northwest homes. PEX-a is chemically inert, meaning it will never corrode, pit, or leach metallic tastes into your drinking water.
Moreover, PEX-a expands up to three times its diameter if exposed to freezing temperatures without bursting, providing exceptional resilience during cold Washington snaps. Its flexibility allows us to thread lines through wall cavities with minimal drywall cuts.
Explore Galvanized Pipe Replacement
Schedule a complete piping assessment and discover how whole-house repiping transforms your water pressure.
Call (253) 201-3775What the Repiping Process Looks Like
Structured, tidy, and organized to keep your family comfortable throughout construction.
Many homeowners delay repiping because they fear their home will be uninhabitable for weeks. With Washington Plumbing, a typical single-family repiping project takes only 3 to 5 business days. Our crews lay protective floor coverings and systematically fish flexible PEX-a lines through crawlspaces, attics, and small wall access points.
Water is turned on at the end of each working day so your family never goes without essential nighttime running water. Once the system passes municipal plumbing inspection, we professionally patch all drywall cuts, leaving your home clean and your water pressure fully restored.
No. We disconnect and install new plumbing in stages. Water is restored at the end of every work day, ensuring your family has working bathrooms and kitchen water overnight.
Yes. Disclosing original galvanized piping often scares off home buyers or triggers insurance inspection flags. A fully documented PEX-a repipe with municipal permits eliminates buyer objections and lowers insurance risk.
Des Moines Plumbing Services
Reliable diagnostics, emergency repairs, and code-compliant installations engineered for King County coastal slopes, 1950s-1970s piping, and Puget Sound hydrology.
Des Moines & Puget Sound Service Areas
Direct mobile plumbing dispatch serving residential neighborhoods, hillside coastal properties, and multifamily districts.