Expert Whole-Home Repiping
In home consultation & transparent pricing: (630) 346-1389
Is your older home suffering from low water pressure, rusty-colored water, or frequent leaks? These are classic signs of a plumbing system that has reached the end of its lifespan. At Principle Plumbing, we specialize in whole-home repiping, replacing your failing plumbing with high-quality Copper or modern PEX piping for clean water, strong pressure, and decades of peace of mind.
After installation, we pressure test the new system to 100 PSI (higher than city pressure) to guarantee there are no leaks. We clean up thoroughly and can recommend trusted local drywall contractors to finish the surface work. With our warranty on both parts and labor, you can trust that your investment is protected.

Restore your home's water pressure and eliminate leaks with whole-home copper or PEX repiping. Experience clean water, strong flow, and decades of worry-free performance.

"Principle Plumbing has always responded promptly to my issues. Very professional and respectful explaining the needed repairs and cost."
— Debbie M., Oakbrook, IL
We use only top-tier materials: Type L Copper for traditional reliability or Uponor (Wirsbo) PEX-A with expansion fittings for modern flexibility. Both options come with manufacturer warranties and will last 50+ years. We never compromise on material quality because your repiping investment should be a one-time project that outlasts your homeownership.
We don't demolish entire walls. Using strategic small access points, we snake flexible PEX through wall cavities or carefully route copper with minimal drywall removal. We run the new system alongside the old, only shutting off water briefly for final connections. This surgical approach saves you thousands in drywall repair and restoration costs.
Before we close any walls, we pressure test your entire new plumbing system to 100 PSI—higher than typical city water pressure. The system must hold this pressure without any drop for a full test cycle, proving zero leaks exist. This industry-exceeding standard ensures you'll never have a leak behind your freshly finished walls.
Unlike major renovations, you can remain in your home during repiping. We work room by room, ensure you have at least one working bathroom daily, and clean up thoroughly each evening. Most whole-home repiping projects complete in 2-5 days depending on home size, and you'll have water every night when we leave.


Our plumbers are highly-trained, lincensed, bonded, insured experienced pros with an eye for quality and a heart for customer service
We are qualified in top brands like Bradford White, Navien, Delta, Kohler and many others, to give expert service for all of your plumbing systems
As a locally-owned and operated company, we love the DuPage County and Chicago area that we call home. We bring personalized care and friendly service to every job
We provide Same-Day service throughout DuPage County. We're able to provide speedy service your home needs, often within a few hours

Minimal-Invasion Installation: Our repiping specialists are experts at running new lines through walls with surgical precision. We use small, strategic access points instead of tearing down entire walls. We protect your floors and furniture, work cleanly, and minimize drywall damage. You can stay in your home throughout the entire process.
Parallel Installation Process: We run your new plumbing system alongside your old one, so you maintain water service throughout most of the project. We only shut off your main water supply for a few hours on the final day to make the final connections. This means minimal disruption to your daily routine.
Rigorous Pressure Testing: Before we activate your new system, we pressure test every line to 100 PSI—significantly higher than normal operating pressure. This ensures there are absolutely no leaks anywhere in the system. We also flush the lines thoroughly to remove any debris and ensure crystal-clear water from day one.
Principle Plumbing Technicians Serve Their Neighbors. Connect with our local teams.
Contact our team of Plumbing experts today for a consultation on your home, residential or commercial property
(630) 346-1389
Addison, Aurora, Bartlett, Bensenville, Bloomingdale, Bolingbrook, Burr Ridge, Carol Stream, Clarendon Hills, Darien, Downers Grove, Elk Grove Village, Elmhurst, Eola, Glen Ellyn, Glendale Heights, Hanover Park, Hinsdale, Itasca, Lisle, Lombard, Naperville, Oak Brook, Oakbrook Terrace, Roselle, Schaumburg, Villa Park, Warrenville, West Chicago, Westmont, Wheaton, Willowbrook, Winfield, Wood Dale, Woodridge Illinois, DuPage County Illinois, Cook County Illinois, Chicago, Illinois and the Greator Chicagoland area
Or call us directly at (630) 346-1389