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Pipe Rerouting in Leander, TX

Sometimes the best way to fix a slab leak is to stop using the pipe under the slab. A reroute runs a new line above the floor and leaves the old one in place.

Leander Leak Detection is a free referral service. Calls are answered by independent local providers who set their own prices.

A worker in gloves adjusting metal pipe valves on a plumbing line.
On this page
  1. What is pipe rerouting, and why do Leander homes choose it?
  2. How a reroute is done
  3. Eight signs a reroute may be the better choice
  4. Why reroutes are common in Leander
  5. Reroutes in Leander floor plans
  6. What to think about before choosing a reroute
  7. What happens on reroute day
  8. Single-line reroute or whole-house repipe?
  9. What affects the price of pipe rerouting
  10. When to reroute right away
  11. After the reroute
  12. How long a reroute takes and what to expect at home
  13. FAQ
Quick answer

Pipe rerouting in Leander replaces a leaking under-slab water line with a new line run through the walls or attic. An independent local plumber disconnects the old pipe and supplies the fixture from above, so the floor usually stays intact.

What is pipe rerouting, and why do Leander homes choose it?

Pipe rerouting is a way of fixing a slab leak without fixing the pipe under the slab. Once slab leak detection has confirmed which line is leaking, the plumber disconnects that line where it enters and leaves the slab and caps it. A new pipe is then run above the floor, through the walls and attic, to the same fixture. The old line stays under the concrete, unused.

Homeowners pick a reroute when opening the floor would be costly or disruptive, when a line has already leaked before, or when the leak is under cabinets, a kitchen island or expensive tile. It is the main alternative to a direct slab leak repair, and both are explained on our main leak detection Leander page.

How a reroute is done

  1. Plan the route

    The plumber maps a path from the supply to the fixture through walls and attic.

  2. Open small access points

    A few small cuts in drywall let the new line pass where it needs to turn.

  3. Run and connect

    New pipe is run, secured and connected at both ends, and the old line is capped.

  4. Test and close

    The new line is pressure tested and access points are left ready for patching.

Eight signs a reroute may be the better choice

  • Second slab leak

    The house has already had one slab leak on the same system.

  • Leak under cabinets

    The marked spot sits under an island or built-ins.

  • Expensive flooring

    Large tile or hardwood that is hard to match.

  • Old or worn line

    The rest of the line looks worn on testing.

  • Hot line leak

    Hot lines are often rerouted because they leak more.

  • Long run to one fixture

    A single long line under the slab feeds a distant bath.

  • Foundation concerns

    You would rather not cut a post-tensioned slab.

  • Planning to stay long term

    A new line means less worry about future slab leaks.

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Why reroutes are common in Leander

In Leander, nearly every house sits on a slab over expansive clay, and many newer homes use post-tensioned slabs with steel cables inside. Cutting into that kind of slab takes care, and some owners would rather not cut at all. A reroute avoids the slab entirely.

Flooring is another reason. Large-format tile and continuous wood floors are common in homes built during the city's growth years. Matching tile or boards years after installation can be hard, and a patch may always show. A reroute through the walls avoids that problem.

Finally, once one leak has appeared, the forces that caused it, clay movement, slab flex and pipe wear, are still at work on the rest of the line. Replacing the run overhead removes that line from the soil altogether.

Pro tip

Ask the provider to show you the planned route on a quick sketch before work starts, including where each wall opening will be. It helps you plan furniture and patching, and avoids surprises.

Reroutes in Leander floor plans

Most Leander homes have attic space above at least part of the house, which makes overhead routing practical. Two-story homes can be trickier because the second floor sits between the attic and first-floor fixtures; there the plumber may route through interior walls or closets instead.

Because Central Texas attics get very hot in summer and the area saw the February 2021 freeze, lines in the attic need good insulation and should be kept away from vents and the roof deck. A provider who works locally will plan for both extremes. In larger homes such as those in Crystal Falls, longer runs make the planning stage especially important.

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Exposed plumbing pipes and conduit inside an open wall, plumbing pipes and tools for home repair work
Exposed plumbing lines inside an open wall

What to think about before choosing a reroute

  • Ask whether the leaking line has leaked before.
  • Find out what flooring sits over the marked leak.
  • Check attic access and whether storage is in the way.
  • Ask who will patch and paint the wall openings.
  • Get prices for both a spot repair and a reroute to compare.

What happens on reroute day

  1. Walk-through

    The plumber confirms the route, the access points and how long water will be off.

  2. Protection

    Floors and furniture near access points are covered.

  3. Install and cap

    The new line goes in and the old line is cut off and capped.

  4. Test and hand-off

    The system is tested and you get a summary of what was done.

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Single-line reroute or whole-house repipe?

Single-line rerouteWhole-house repipe
ScopeOne leaking line to one or a few fixturesNew lines to every fixture
TimeOften a daySeveral days
Best forOne leak, rest of system soundSeveral leaks or old pipe throughout
Wall openingsA fewMany, in every room with plumbing

What affects the price of pipe rerouting

FactorWhy it mattersWhat to ask on the call
Length of the new lineLonger runs need more pipe and timeHow long will the new run be?
Number of fixturesEach connection adds workWhich fixtures will be reconnected?
House layoutTwo-story homes can need more wall accessWill you route through the attic or walls?
Pipe materialPEX and copper differ in cost and laborWhat pipe will you use?
Drywall and paintPatching may be separateIs drywall repair included?

When to reroute right away

A reroute is usually planned, not rushed. But if a slab leak is large and the leaking line feeds the whole house, a plumber can often cap the leaking section and run a temporary or permanent line the same day to get water back on. Tell the provider on the call if your water is off because of the leak.

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Warning

Do not leave a capped line under pressure without telling the plumber. Make sure the old line is fully disconnected at both ends so it cannot keep leaking under the slab.

After the reroute

Once the new line is in, watch the meter with everything off to confirm the leak has stopped. Keep the invoice, which also counts as proof of repair for the City of Leander's leak adjustment within 90 days. Note where the new line runs in the attic, so future work up there, such as insulation or HVAC changes, does not damage it.

How long a reroute takes and what to expect at home

A single-line reroute in a typical Leander home is often finished in a day, though longer runs or two-story layouts can take more. Water is usually off for part of that time, while the old line is cut off and the new one is connected. Most providers plan the shut-off for a few hours, not the whole day, and tell you in advance.

Expect some noise and dust at the access points, and plan for someone to be home so the plumber can reach the attic and the rooms where the line will connect. Once the new line is tested, the access openings are left neat and ready for drywall repair. Some providers include patching; others leave it to a drywall or handyman service. Ask which applies before work starts, so you know what the finished job will look like.

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Questions people in Leander ask

What does rerouting a pipe mean?

The leaking line under the slab is capped and abandoned, and a new line is run through the walls, ceiling or attic to supply the same fixtures. The floor is usually left alone.

Is a reroute better than a slab repair?

It depends. A reroute avoids opening the floor and replaces an old line with a new one, which helps when leaks repeat or flooring is costly. A spot repair can be faster and simpler for a single leak.

How much wall will be opened?

Usually a few small openings where the line turns or reaches a fixture. The rest of the run goes through the attic or inside walls. Drywall patching and paint are often separate.

What pipe is used for reroutes?

Many providers use PEX for reroutes because it is flexible and needs fewer joints. Copper is also used. Ask what material they plan to use and why.

Will a reroute line in the attic freeze?

Attic lines need proper insulation and placement, which matters in a region that saw the 2021 freeze. A careful provider routes and insulates the line to protect it.

Can the whole house be repiped this way?

Yes. A full repipe runs new lines to every fixture overhead. It is a bigger job, usually considered when a home has had several slab leaks.

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Pipe Rerouting work photos

Assorted pipe sections and fittings laid on a table
Assorted pipe sections and fittings
Pair of copper water pipes running along a wall
Copper supply lines along a wall
A plumber bends copper pipe with a pipe bender in a workshop
Copper pipe being bent with a bender
A worker in a black hoodie holding a pipe tool, a plumber at work on a home repair job
Worker holding a pipe tool
White plumbing pipes attached to an interior wall
White plumbing pipes on a wall
A wooden wall with pipes running along it.
Pipes running along a wooden wall

Representative photos of the kind of work local providers handle.

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Get pipe rerouting handled in Leander today

One call connects you with an independent plumber who works in Leander. They explain the likely cause and give a price before any work starts.

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