Slab Leaks

Santa Fe Slab Leak Detection

What is a slab leak?

A slab leak, also called a foundation leak or concrete slab leak, is a water leak in the pipes under the concrete foundation of your home or business. This type of leak can cause significant damage to a building’s structure and lead to the development of mold. It’s important that foundation leaks are repaired as soon as possible by a licensed professional to prevent further damage.

What Causes Slab Leaks?

Foundation movement

If the foundation shifts, the pipes can move as well, which could cause them to pull apart, crack, or break. Foundation movement can be due to Santa Fe’s unique soil expanding and contracting with the changing weather or poor-quality foundation repairs.

Corroded copper or cast iron pipes

Over time, water and chemicals in and around pipes can cause them to break down or rust. Common causes include the use of water softeners and cleaning solutions. Corrosion can also happen when the water velocity in the pipes is too high, if pipes are sitting in wet soil, and where copper pipes come into contact with the steel rebar in the concrete foundation.

Pipes that are broken or cracked by tree roots

Poor installation of sewer lines or incoming water lines

What are the Symptoms or Problems of a Slab Leak?

Because slab leaks happen below the foundation of your home or business, you may not notice signs of a leak until water has built up and already caused damage. If you notice any of these things, you may have an under slab leak.

Water bill is unusually high

Unfortunately, this is usually how many home or business owners discover they have a leak in their water supply line. Even a small “pinhole” leak can waste over 10,000 gallons of water in just a month.

Excess water around the foundation

Unfortunately, a sewer line can leak under the foundation for years before being noticed. With the expansive soils in New Mexico, a sewer leak could cause the soil to swell. You may notice wet flower beds or soggy dirt around the building’s foundation. Over time, all that water can cause the slab to erode.

Structural damage to the building

If enough water is present, New Mexico’s expansive soil can swell up enough to actually lift a building. When this lifting, or heaving, is due to a water leak, you’ll see the foundation buckle. Cracks in floors or walls, floors that are uneven, or doors dragging on the floor are all signs that there could be a water leak under your building’s concrete slab.

Sound of running water

If you can hear water running through the pipes when there isn’t any water being used, that’s a good sign that there could be a leak.

Damp or warm spots on floor

When there’s a leak under the slab, water can seep up through the concrete and onto your flooring. Wet floors, carpet, or baseboards are all possible signs of a leak. Mildew under your flooring is another indicator. If areas of the floor feel warm or even hot, you could have a hot water line leaking out under your foundation.

Remember, these problems will only get worse with time, so it’s important to call the professionals at James’ Plumbing & Heating as soon as you suspect a slab leak. We’ll find and fix the leak, so you can be sure your home or business is a stable, safe, healthy place to be.

Slab Leak Detection

Before a leak can be fixed, we have to confirm that there is a leak, and find exactly where it’s located. James’ Plumbing & Heating starts investigating a slab leak by visually inspecting your property for the signs listed above. Based on this evidence, we can usually determine whether the source of the leak is more likely to be a sewer pipe or water supply line. Then we can begin the actual testing.

Detecting leaks from a sewer line

To check for sewer line leaks, hydrostatic testing is used. A special ball is placed in the main sewer line and inflated until it’s big enough to plug the line. Then we attempt to fill the entire system with water. After 20 minutes, if the lines can’t be filled or they’ve lost water, there’s a slab leak. Once we’ve confirmed a sewer line leak, we have to figure out where it is. We use a special camera to go into the sewer lines and inspect them visually. We can also perform a leak isolation test, which involves filling different sections of pipe with water to see if it will hold.

Detecting water supply line leaks

A pressure test checks for leaks by checking the water pressure delivered from the main supply at the street and comparing it to the pressure in the lines after the supply from the street is turned off. If the pressure in your home’s water lines drops, there’s a leak somewhere.

After a water supply line leak is confirmed, the location is determined by first checking faucets and toilets for drips and leaks. If there are none found, acoustical listening devices can be used to detect the sound of leaking water under the building.

James Plumbing also recommends slab leak detection in these situations:

  • Before any foundation work is started
  • After foundation repair has been completed
  • Before you buy a home
  • Once a year in areas where foundation cracks are common

Once we’ve discovered where the leak under your slab is located, we can fix it.

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Local Reviews

James' Plumbing and Heating Rated 5.0 out of 5 stars based on 139 customer reviews

Map of Santa Fe, NM

Great service




Review of James' Plumbing and Heating

Right on time,got the job done quickly, very happy...


Map of Santa Fe, NM

Great service!




Review of James' Plumbing and Heating

I’ve used this company 3 times. Friendly, competent service every time.


Map of Santa Fe, NM

fast. knowledgeable. friendly




Review of James' Plumbing and Heating

Dominic was incredible. Fixed my issue as well as answering my many questions as a new home owner. Will use this company exclusively for my plumbing and heating and cooling!


Map of Santa Fe, NM

Extremely happy and COOL!




Review of James' Plumbing and Heating

James very quickly provided a fair and accurate quote for 2 new evaporative coolers installed. He and his team completed the job in good time and did not hesitate to stay late to make this happen. We had some water come into the house during a bad storm and James was fast on the scene. Clearly the water was not from the cooler installation and he provided photos of the true culprit! I highly recommend James Plumbing and Heating for his professional service and outstanding customer care!


Map of Santa Fe, NM

Isaac was great! Explained everything to me in great detail and fixed the problem. Had the company who installed the unit in twice and they couldn’t




Review of James' Plumbing and Heating

I will be calling James plumbing and heating for all my needs and will recommend to family and friends.


Map of Santa Fe, NM

Fantastic!




Review of James' Plumbing and Heating

Very professional and personable service. Quick, thorough, tidy, friendly. Highly recommend!


Map of Santa Fe, NM

Timely but incomplete




Review of James' Plumbing and Heating

Thomas was a very pleasant young man but his work has left us with very little hot water pressure in the kitchen. I guess I should have pushed for a like kind replacement valve instead of the option he had available.


Map of Santa Fe, NM

Great Service




Review of James' Plumbing and Heating

Efficient service helpful advice


Map of Santa Fe, NM

Great service




Review of James' Plumbing and Heating

Really good


Map of Santa Fe, NM

Great service as always!




Review of James' Plumbing and Heating


Thomas M.

Thomas M.

Repairing toilet flange in Santa Fe

Near Rabbit Rd, Santa Fe, NM 87508
Thomas M.

Thomas M.

Drain Cleaning in Santa Fe

Near Clark Rd, Santa Fe, NM 87507
Dominic M.

Dominic M.

Rebuilt toilet with fill valve flapper and gasket for bowl no leaks

Near Agua Fria St, Santa Fe, NM 87507
Dominic M.

Dominic M.

Homeowner stated that kitchen faucet was leaking. Remove and replace both hot and cold cartridges. No leaks

Near Don Gaspar Ave, Santa Fe, NM 87505
Thomas M.

Thomas M.

Drain Cleaning in Santa Fe

Near Cll Celestial, Santa Fe, NM 87506
Dominic M.

Dominic M.

Kitchen sink backing up. Ran snake down 8 cables and pulled up lots of grease. Filled up kitchen sink 4-5 times and is know draining properly.

Near Calle Miquela, Santa Fe, NM 87505
Thomas M.

Thomas M.

Removing bathroom fixtures in Santa Fe

Near Cll Celestial, Santa Fe, NM 87506
Dominic M.

Dominic M.

Lavatory faucet was leaking from fixture itself. Remove and replace one lavatory faucet and pop up assembly

Near Calle Primavera, Santa Fe, NM 87505
Dominic M.

Dominic M.

Kitchen sink draining slowly. Ran drill snake down 50ft and kitchen sink is know draining properly.

Near Colonitas Campestres, Santa Fe, NM 87501
Dominic M.

Dominic M.

Remove and replace one flapper and fill valve on toilet no leaks homeowner satisfied with work completed

Near Vallecita Dr, Santa Fe, NM 87501

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About Us

James’ Plumbing & Heating has been solving Santa Fe’s plumbing, heating, and cooling needs for over 30 years. With 24/7 service and the best service technicians in town, it’s no wonder why we have some of the highest online reviews in the area! Call today to learn more.

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