finished repipe job in Seattle WA home by Eastside Repipe and Plumbing

What Is a Whole House Repipe and Do You Need One? | Eastside Repipe and Plumbing

May 05, 20269 min read

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A whole house repipe is the complete replacement of every water supply pipe in your home, typically done with PEX or copper. If you live in an older home in Bellevue, Renton, Redmond, or anywhere on the Eastside, and you are dealing with rusty water, weak pressure, or leaks that keep coming back, there is a good chance your pipes are the problem. The Washington State Department of Health notes that aging pipes are one of the leading causes of household water quality issues, and most homes built before 1970 are running on materials that were never meant to last this long.

The good news is that repiping a house in Seattle, WA is not the weeks-long ordeal many homeowners expect. Most whole house repipes are finished in one to three days, your water is back on each evening, and when it is done, you are looking at decades of clean, reliable water. We have done this for hundreds of homeowners across King County, and we are happy to walk you through exactly what to expect.

Key Takeaways

  • Most jobs are done in 1 to 3 days, water on every evening

  • PEX costs less and handles freezing better; copper lasts longer and resists bacteria

  • Homes built before 1970 are top candidates for a full repipe

  • Eastside Repipe and Plumbing offers free estimates and handles everything start to finish

What Are the Warning Signs You Need Repiping a House in Seattle, WA?

A lot of homeowners do not think about their pipes until something goes seriously wrong. Here are the signs it is time for a whole house repipe.

Rusty or discolored water. A red or brownish tint means rust is flaking off the inside of your pipes. According to the U.S. Environmental Protection Agency corroded metal pipes are among the most serious sources of drinking water contamination in older homes.

Low or uneven water pressure. Mineral and rust buildup gradually chokes water flow. If your shower barely trickles where it used to be strong, corroded supply lines are usually the reason.

Leaks that keep coming back. One leak is a repair. Two or three in a short stretch means the whole system is likely on its way out.

A home built before 1970. Galvanized steel, polybutylene, and lead pipes were standard back then. All of them have exceeded their useful lifespan.

A growing repair bill. If you are calling a plumber several times a year, a full repipe almost always works out cheaper in the long run.

How Much Does It Cost to Repipe a House?

House repiping cost in the Seattle area varies depending on your home's size, the pipe material you choose, and how accessible your existing pipes are. Labor makes up 60 to 70% of the total, so the contractor you hire matters as much as the materials.

A few things that move the number up or down:

Pipe material. PEX is roughly one-third the cost of copper on materials alone, and it installs faster too. Copper costs more upfront but brings natural antimicrobial properties and a 50 to 70 year track record.

Foundation type. Crawl space homes are much easier to work in than slab foundations, where pipes have to be rerouted up through walls and ceilings. Slab jobs take longer and cost more.

Permits. The City of Bellevue Development Services and King County both require permits for whole house repipes. We handle that paperwork for you, but factor the permit fee into your budget.

Drywall patching. Getting to your pipes means cutting into walls. Patching those openings adds to the overall cost depending on the scope. At Eastside Repipe and Plumbing, that is included in our service, not tacked on at the end.

old galvanized pipes replaced with new PEX pipes Seattle WA home repipe

How Long Does It Take to Repipe a House?

Honestly, less time than most people think. A standard whole house repipe in the Seattle area takes one to three days from start to finish. Here is how that typically breaks down:

  • Day 1: Our crew protects your floors and furniture, removes the old pipes, and routes new ones throughout the home. Water is off during work hours and back on before we leave.

  • Day 2: We finalize installation and coordinate the city inspection.

  • Day 3: Walls are patched and cleaned up. We do a walkthrough together before we call it done.

Larger homes with multiple floors, slab access, or complex layouts may run four to seven days. Either way, you will have water every evening. We have repiped homes all across Bellevue, Kirkland, Renton, Redmond, Issaquah, and Sammamish, and the most common thing customers tell us afterward is that it was way less disruptive than they expected.

Whole House Repipe: PEX vs. Copper and Which Is the Best Pipe Material?

This is the question we get more than any other, and it deserves a straight answer. Both materials are genuinely good. The right one depends on your budget, your home, and what matters most to you.

PEX (Cross-Linked Polyethylene)

PEX has taken over as the go-to choice for whole house repiping across the Pacific Northwest, and the reasons are practical, not just trendy.

  • Lower overall cost. Materials run about one-third the price of copper, and faster installation means less labor time. Total project cost often comes in 30 to 50% lower than copper.

  • Freeze resistance. PEX flexes when water freezes instead of cracking, which matters during the occasional cold snap in the greater Seattle area.

  • Long lifespan. Rated for 40 to 50 years, with some research pointing toward 100 years in ideal conditions.

  • Fewer fittings, fewer failure points. PEX snakes through walls without needing as many joints, which means fewer spots where a leak could develop over time.

Best for homeowners who want solid performance at a lower upfront cost, especially in Pacific Northwest climates.

Copper

Copper has earned its reputation over generations of reliable service, and it is still an excellent choice.

  • Natural antimicrobial properties. Copper inhibits bacterial growth, which is a real advantage for water quality.

  • Heat handling. It manages high-temperature water lines without degrading over time.

  • Longevity. A well-installed copper system can last 50 to 70 years or more.

  • Resale signal. Some buyers and appraisers view copper piping as a premium, which can matter if you plan to sell.

Best for homeowners who want the most proven material and are comfortable with a higher upfront investment.

So Which Should You Choose?

For most homeowners repiping a house in Seattle, WA, PEX is the better financial decision. It costs less, goes in faster, and handles our climate well. If you are building or renovating a high-end property and want the longest-standing track record in the industry, copper is still worth it. We install both, and we are happy to walk through the trade-offs with you during your free estimate so you can make the call that is right for your home.

new PEX plumbing system after whole house repipe Seattle WA

Why Eastside Repipe and Plumbing Is the Best Choice for a Whole House Repipe

There is no shortage of plumbing companies in the greater Seattle area. So why do homeowners across Bellevue, Renton, and Kirkland keep calling us? A few reasons.

We specialize in repiping, full stop. It is not a side job here. That focus means faster work, fewer surprises, and crews who know the quirks of older Eastside homes inside and out.

20 years of real local knowledge. Owner has been working these neighborhoods for two decades. We know how to plan and price your job accurately from the first visit.

We handle everything. Permits, inspections, wall patching, cleanup. One call, one point of contact, start to finish.

The price we quote is the price you pay. Detailed, transparent estimates with no hidden fees and no last-minute add-ons.

Most jobs are done in a day. Your water is back on before dinner, and your home is left clean.

We serve the entire Eastside and beyond. Bellevue, Kirkland, Redmond, Renton, Issaquah, Sammamish, Bothell, Newcastle, Mercer Island, Seattle, Shoreline, and Edmonds.

Frequently Asked Questions About Whole House Repiping

1. How much does it cost to repipe a house?

House repiping cost in the Seattle area depends on your home's size, pipe material, and accessibility of your existing pipes. Labor makes up the majority of the total, which is why choosing the right contractor matters. Call us at 425-331-2011 for a free estimate specific to your home.

2. How long does it take to repipe a house?

Most whole house repipes take one to three days. A standard three-bedroom, two-bathroom home is usually done in a single day of installation, with inspection and patching following on day two or three. Larger homes or slab foundations may take four to seven days. Either way, your water is back on every evening.

3. What are the signs I need a whole house repipe?

Rusty or discolored water, low or uneven pressure, recurring leaks, pipes over 40 to 50 years old, and homes built before 1970 with galvanized steel or polybutylene pipe. If you are spending more each year on plumbing repairs than it would cost to fix the root problem, a full repipe almost always pays for itself within a few years.

4. Is PEX or copper better for a whole house repipe?

PEX is the better fit for most Seattle-area homeowners. It costs significantly less, installs faster, handles freezing better than copper, and is rated to last 40 to 100 years. Copper is a strong choice for homeowners who want the longest proven track record or natural antimicrobial protection. We install both and will help you decide during your free estimate.

5. Does repiping a house increase home value?

Not in the same way a kitchen remodel does, but it absolutely protects your home's value. Failing pipes can cause buyers to walk, force price reductions, or fail a home inspection. A recently repiped home removes one of the most common contingency issues in Pacific Northwest real estate and tells buyers the major infrastructure work is already done.

Ready for a Free Repipe Estimate in the Bellevue and Seattle Area?

If your home is showing any of the signs above, or if it has simply been decades since anyone looked at your pipes, now is the right time. Eastside Repipe and Plumbing serves homeowners across Bellevue, Redmond, Kirkland, Renton, Issaquah, Sammamish, Bothell, Mercer Island, Newcastle, Seattle, Shoreline, and Edmonds.

Call us today at 425-331-2011 or visit Eastside Repipe and Plumbing to schedule your free estimate.

We will look at your pipes, talk through your options without the pressure, and give you a transparent quote you can actually trust.


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