Whole House Plumbing in Northwest Washington
New Construction · Remodels · Repiping · System Upgrades · Complete Plumbing. Licensed master plumbers handling every pipe in your home across Bellingham, Mount Vernon & Anacortes.
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PROUDLY SERVING BELLINGHAM, MOUNT VERNON, AND ANACORTES FOR 30+ YEARS
Every Pipe, Every Fixture, Every System in Your Home
Whole house plumbing covers everything that carries water into, through, and out of your home. Supply lines, drain lines, vent stacks, fixture connections, water heaters, gas piping, shut off valves, and sewer connections all work together as a single system. When one part fails or falls behind, the rest suffers. Whether you're building new, gutting a remodel, repiping an aging home, or upgrading outdated systems, the entire plumbing package needs to be designed and installed as one coordinated project.
LaVergne's handles new construction plumbing, whole house repiping, complete remodel plumbing, system upgrades, fixture rough in and trim, water heater installation, gas line work, and sewer connections for homeowners and builders throughout Bellingham, Mount Vernon, Anacortes, and surrounding areas.
What to Look for in a Whole House Plumber
Whole house plumbing is the most complex plumbing scope there is. It touches every room, every wall cavity, every floor, the crawlspace, the attic, and the yard. A plumber who can fix a faucet is not necessarily qualified to design and install an entire plumbing system. Here's what separates a whole house specialist from a service call plumber.
Why LaVergne's?
We check every box. Building complete plumbing systems since 1951.
- Licensed & Insured (#LAVERPH798NZ)
- 75+ Years of Whole House Work
- New Construction & Remodel
- Full System Design & Install
- 5 Star Customer Reviews
- Permit & Inspection Coordination
Whole House Plumbing Services
Six complete plumbing service areas covering every scope from new builds to full system replacements, handled start to finish by licensed master plumbers.
New Construction Plumbing
Complete ground up plumbing for new homes. Sewer connection, underground rough in, supply and drain rough in through framing, vent stacks, gas piping, water heater install, fixture trim, and final testing.
New Build →Whole House Repiping
Complete replacement of all supply lines, from the main shut off to every fixture in the home. Old galvanized, polybutylene, or failing copper replaced with new PEX or copper throughout.
Repipe →Full Remodel Plumbing
Complete plumbing for gut remodels. Demo of existing, rerouting supply and drain lines, new fixture rough in and trim, water heater relocation or upgrade, and code compliant reinstallation.
Remodel →Addition & ADU Plumbing
Plumbing for new bathrooms, kitchens, laundry rooms, basement finishes, garage conversions, and detached ADUs. Supply runs, drain and vent tie ins, water heater sizing, and permit coordination.
Expand →System Upgrades
Main shut off valve replacement, pressure regulating valve installation, whole house water filtration, recirculation pump systems, expansion tanks, and bringing older plumbing systems up to current code.
Upgrade →Gas Line & Sewer Work
New gas line installation for appliances, gas line extensions, meter upgrades, sewer line replacement, sewer connection for new construction, and cleanout installation for the whole house system.
Connect →Planning a Build, Remodel, or Repipe?
Complete whole house plumbing across Bellingham, Mount Vernon, Anacortes and all surrounding areas.
Signs Your Home Needs Whole House Plumbing Work
Not every plumbing problem is a one fixture fix. Some issues point to system wide failure that requires a complete approach. Here are the four clearest signs your home needs whole house plumbing attention.
We evaluate your entire system, from the main line to the last fixture, and give you an honest assessment of what needs attention now, what can wait, and what the full scope and cost looks like.
Galvanized or Poly Pipes
Galvanized steel corrodes from the inside out, restricting flow and contaminating water. Polybutylene is a known failure prone material. Both require full repiping.
Evaluate →Multiple Leaks Appearing
When leaks start showing up in different areas of your home at the same time, the problem is systemic, not isolated. The piping material itself is failing throughout.
Diagnose →Low Pressure Everywhere
Low water pressure at every fixture points to corroded supply lines, an undersized main, or a failing pressure regulator. A whole house evaluation identifies the root cause.
Fix It →Major Remodel or Addition
Adding a bathroom, finishing a basement, building an ADU, or gutting a kitchen means tying into your existing system. If the existing plumbing is outdated, upgrading the whole system during the project saves money long term.
Plan →
Why Professional Whole House Plumbing Matters
Your plumbing system is the circulatory system of your home. Supply lines deliver clean water to every fixture. Drain lines carry waste safely out. Vent stacks maintain proper air pressure so drains flow and traps hold. Gas lines fuel your water heater, furnace, range, and dryer. When any part of this system is designed wrong, installed wrong, or failing, the consequences are leaks, flooding, sewer gas exposure, low pressure, cross contamination, and code violations.
Licensed master plumbers design the entire system to work together, size every pipe correctly, slope every drain to the right grade, vent every fixture to code, test every connection under pressure, and coordinate permits and inspections so your home's plumbing works flawlessly for decades.
System Design
Engineered as one complete system
Code Compliance
Every pipe, every connection
Pressure Tested
Verified before walls close
Whole House Plumbing FAQs
Common whole house plumbing questions answered by our licensed experts serving Whatcom and Skagit Counties.
How much does a whole house repipe cost?
A whole house repipe typically runs $5,000 to $15,000 depending on the size of the home, number of fixtures, accessibility, pipe material chosen, and whether drywall repair is included. We provide a detailed upfront quote after evaluating your home.
How long does a whole house repipe take?
Most whole house repipes take 2 to 5 days depending on the size of the home and accessibility. We keep water running to at least one bathroom during the project whenever possible. Drywall patching, if needed, adds time but is coordinated separately.
What is the best pipe material for repiping?
PEX is the most common choice for repiping today. It resists corrosion, handles freezing better than copper, costs less, and installs faster with fewer joints. Copper is still an excellent option for homeowners who prefer it. We install both.
Do you handle new construction plumbing?
Yes. We handle complete new construction plumbing from sewer connection and underground rough in through final fixture trim. We coordinate with builders, framers, and inspectors and manage all permits and inspections.
Can you plumb my ADU or addition?
Yes. We handle plumbing for detached ADUs, attached additions, basement finishes, garage conversions, and any project that adds new plumbing to your property. We tie into your existing system or run new lines as needed.
Do I need a permit for repiping or new plumbing?
Yes. Most jurisdictions in Whatcom and Skagit Counties require plumbing permits for repiping, new construction, and major remodel work. We handle all permit applications, fees, and inspection scheduling as part of our service.
How do I know if I have galvanized pipes?
Galvanized pipes are silver gray steel pipes common in homes built before 1970. If you see threaded steel pipes at your water heater, under sinks, or in your crawlspace, you likely have galvanized. We can evaluate your system and confirm.
Can you upgrade my water pressure?
Yes. Low pressure is often caused by corroded galvanized pipes, an undersized main, or a failing