How long does plumbing last in a slab?

Author: Ms. Serena Cruickshank  |  Last update: Thursday, November 27, 2025

If your home is undergoing a renovation or remodel, you may want to consider repiping a house built on a slab during the construction project. It's easier to replace pipes inside walls before hanging drywall. Brass and copper pipes tend to last 80 to 100 years. Galvanized steel may only last 70 to 80 years.

How much does it cost to replace a slab drain pipe?

Broken Drain Pipe Under Slab

If the broken drain pipe is located under the slab, it can be one of the most expensive pipe repairing projects, costing anywhere between $500 to $4,500 to detect and repair the pipe. The high cost results from the need for the plumber to break through the slab to reach the damaged pipe.

Can you Repipe a house on a slab?

We recently went through this as well with a slab leak in a 40 year old house next to the master bath. Yes, there are two options: cut into the slab and directly patch the pipe, or abandon that line and pipe around it in the attic (aka repipe).

Can a pipe burst in a slab foundation?

When a water pipe leaks or bursts under the concrete foundation, this is a slab leak. Often, a homeowner does not even realize water is leaking under and around the slab. These leaks can cause a list of problems, and eventually, the damage can evolve into structural instability and collapse.

How does plumbing run in a slab home?

Many homes nowadays are built on concrete slabs. Prior to pouring the concrete, the plumbing pipes are laid in the dirt. This allows for your tubs, toilets, and other drains in your home to drain down, under the slab, and out into your main sewer line or septic tank. This is referred to Slab Under Plumbing.

Plumbing Basics in 4 minutes. New house slab plumbing explained.

How long does under slab plumbing last?

If your home is undergoing a renovation or remodel, you may want to consider repiping a house built on a slab during the construction project. It's easier to replace pipes inside walls before hanging drywall. Brass and copper pipes tend to last 80 to 100 years. Galvanized steel may only last 70 to 80 years.

Will pipes freeze in a slab house?

There is no risk of freeze damage, so they don't need to be deep. However, if the pipes are too close to the surface, the water won't be cold during the summer because it'll be too exposed to heat above the ground.

Does homeowners insurance cover broken pipes under slab?

Homeowners insurance generally does not cover maintenance issues or wear and tear. So, if a slab leak results when tree roots damage your plumbing, or from plumbing lines that are simply past their prime, a typical homeowners insurance will not pay for repairs.

How do you repair plumbing in a slab?

How to Fix a Slab Leak: The Top Four Ways
  1. Jack-Hammer the Slab. The key step for this type of repair is accurately locating the leak. ...
  2. Tunnel Under the House. Digging a tunnel is the least invasive way (for the interior of the home) to make the repair. ...
  3. Re-Route Through the Attic. ...
  4. Pass-Through the Old Line.

How common are slab leaks?

Homes with older plumbing, especially those with aging copper pipes, are more vulnerable to corrosion, which can lead to slab leaks over time. While slab leaks are not an everyday occurrence, they are common enough that homeowners should be vigilant and watch for the signs to avoid extensive damage.

How much does it cost to replumb a house on a slab?

Repiping your house in California can cost anywhere from $3,000 to $15,000 or more, depending on factors like home size, pipe type, damage extent, labor costs, and location. To determine the cost, collect quotes from reputable plumbers or plumbing companies.

How long does it take to replace a sewer line under a concrete slab?

There are many benefits to the trenchless method, most notably that it takes just 1 – 3 days to complete the job. You won't have a plumbing crew invading your home for weeks. Call Before You Dig Up That Concrete Slab!

Will insurance pay to repipe a house?

It just depends. Insurance policies may cover repiping if there is significant damage due to a fire or natural disaster. If there is extremely cold winter weather and your pipes freeze and then burst, your insurance policy may cover related expenses, but not always.

Does homeowners insurance cover sewer line replacement?

Does homeowners insurance cover your sewer line if it's damaged? Damage to your sewer line may be covered by your policy if it is caused by perils such as hail or windstorms, explosions, lightning or fire, damages caused by vehicles, vandalism or falling objects.

Is Roto Rooter more expensive than other plumbers?

Roto-Rooter is a national service available in every U.S. state, including Alaska and Hawaii. Flat-rate pricing might be slightly higher in states with a higher cost of living, such as California or New York, but most plumbers charge between $45 and $200 per hour.

Can you change plumbing in a concrete slab?

The traditional way of installing plumbing would be to cut through your concrete slab so you can lay the plumbing and connect it to your existing sewer point. This will give you the most seamless result, and the end result will be similar to if you had laid it in the slab from the beginning.

How much does it cost to fix a broken pipe under a slab?

Under-slab repair: After locating a leak, a plumber must demolish a portion of the foundation to access the pipe. Depending on the location of the leak and the severity of the damage, this can cost anywhere between $500 to $4,000.

Can pipes burst under slab?

Most of the time, slab leaks can go unnoticed by homeowners. A pipe may burst anytime and begin to leak water into the surrounding soil.

Will homeowners insurance pay for plumbing repairs?

Typically, a basic homeowners insurance policy will cover plumbing if the damage is sudden and accidental, rather than gradual. “Sudden and accidental” is a phrase that most insurance carriers use to determine which plumbing claims are covered and which are not.

What happens if you don't fix a slab leak?

Foundation Damage

Ignoring a slab leak can spell disaster for this crucial structure. As water seeps into the ground beneath your foundation, it causes the soil to shift and erode, compromising the stability of your home.

Does a home warranty cover slab leaks?

A few home warranty providers offer add-on or enhanced coverage for water leaks or slab leaks that might include limited funds for accessing the leak behind walls or under floors. However, they still typically exclude the expenses for cosmetic restoration or replacement of damaged materials once the leak is repaired.

Which house pipes most likely to freeze?

No matter the strength of a container, expanding water can cause pipes to break. Pipes that freeze most frequently are: Pipes that are exposed to severe cold, like outdoor hose bibs, swimming pool supply lines, and water sprinkler lines.

Do you need to drip faucets in a house on a slab?

Yes, according to the Red Cross, the short answer to that question is you should.

How deep are plumbing pipes under a slab house?

If you stay in a warmer region (e.g., California), you may only need to run the pipe around 12 – 24 inches (3.48 – 60.96 cm) underground. Since there is no intense cold, there is no risk of freeze damage. If you stay in a colder region (e.g., Alaska), you will need to go deeper.

Previous article
Why does my oven keep clicking on and off?
Next article
What are 3 fan laws?