Pre-purchase slab leak check services in Nevada: buying a boom-era home

Why a slab leak check is worth considering

A general home inspection covers the roof, the electrical, the heating and cooling, the visible plumbing and the structure. It generally cannot tell you whether a line under the slab is leaking, because the line is under concrete.

In the Las Vegas Valley, a large share of houses were built in the 1980s, 1990s and 2000s on slabs. The lines under them have been in service for a long time. Whether they leak is not a function of build year alone, but age is one reason buyers ask.

A leak check is a way to find out whether water is escaping at the time of the check. It does not predict the future, and it is not a promise. It is information, gathered quickly, that lets you decide how to proceed.

What a check usually involves

A leak check starts with the meter. With all water off in the home, the technician watches the meter for movement. If the house is vacant, this is easy. If it is occupied, the seller or agent can help arrange a quiet time.

If the meter moves, the technician isolates the hot and cold sides and may pressure test each. That tells you whether water is leaving the house side of the line and which line is involved.

If the meter is still, the technician may still check the floor with a thermal camera for unexplained warm spots and may listen at key points with an acoustic microphone. These are checks for current activity.

What a check cannot tell you

A still meter on the day does not rule out a small intermittent leak or a line that is weakening. The check is a snapshot. It cannot tell you how long the lines will last, and it does not give you an estimate of the number of years remaining.

It also cannot tell you what material is under the slab. That is confirmed only by exposure of the line, or by records. A technician may see pipe at accessible points, and the report may say what they saw. It will not claim to know what is under the concrete.

Nor does a check replace a general inspection. It sits beside it. If a general inspector notes signs of water, such as stains, warped baseboards or a musty smell, mention them to the leak technician.

Timing within a purchase

Buyers usually have a limited inspection window after an offer is accepted. A leak check can often be scheduled inside it. Ask your agent about the timeline, and ask the leak crew about availability early.

If the home is occupied, the check needs the seller’s cooperation. The agent can arrange access and a quiet period. If the water is off at the property, it needs to be turned on first.

This site does not give real-estate advice and does not state what any contract requires. If the check finds something, your agent or adviser can explain your options. The crew can tell you what they found and what the options would be.

If a check finds a leak

If the meter moves and the technician locates a leak, you will get a plain explanation of what was found and the options for repair. You can then decide with your agent how to proceed.

The technician may give you the repair options, including spot repair, reroute and, where relevant, repiping. Each comes with its own upfront price and disruption. The slab leak repair and replacement overview shows where each option fits.

If the leak is a second or third one, which can be learned from the seller’s disclosure or from the plumbing history, the conversation may move toward reroute or repipe. Repeat slab leaks describes that.

Questions to ask the seller and agent

• Has the house had any slab leaks, and where?
• Has any part of the plumbing been rerouted or repiped?
• Is there any record of what pipe was used?
• Has the water bill changed noticeably in the last year?
• Is the home in an HOA, and are there notice requirements for work?

Written answers are best. A seller’s disclosure may already cover some of this. If nothing is documented, say so to the technician.

Nevada considerations

In the Las Vegas Valley, many resale homes are from the boom decades, and buyers regularly ask about plumbing. Planned communities have HOAs, so access and notice may matter.

See boom-era home slab leaks for the decade picture and what each era commonly has under the floor.

In northern Nevada, older homes on crawlspaces and basements are easier to inspect, since the lines are visible. Newer slab homes follow the Valley’s pattern.

In rural Nevada, buyers of homes on wells should also ask about the pump and pressure tank, which are part of the water system the crew will see.

If you are the seller

A recent leak test with a still meter is a useful thing to have. It promises nothing, but it gives a buyer something factual. If you have repiped or rerouted, a note of when and what is helpful.

If you have had a leak repaired, keep a note of the location, the date and the option chosen. A buyer or inspector may ask.

If you suspect a leak, it is generally better to find out before listing than during a buyer’s inspection.

Reading the result of a check

A check usually ends with one of three results, and each leads somewhere different.

The first is a still meter and no signs. That is a good result for the day. It tells you no water is escaping at the time of the check, within what the methods can detect. It does not say anything about the future.

The second is a moving meter, with the leak found on the yard or irrigation side. That is not a slab leak, but it is information. The seller may want to handle it, and the technician can describe what was found.

The third is a leak under the slab. The technician can tell you which line, roughly where and what the options are. You will want to ask about the pipe near the leak and about the number of leaks the house has had.

In every case, ask for a short written note. It should say what was tested, when, and what was found. If there was a limit on the check, such as an occupied house that could not be quiet, the note should say so.

Take the note to your agent or adviser. They can help you decide what to do. This site does not advise on contracts or negotiations.

What age tells you and what it does not

Buyers often ask whether a house built in a certain decade is likely to have problems. Age is a fair prompt for a question, but a poor predictor on its own.

A house from the 1980s or 1990s has had decades of service on its lines. Some have been repiped. Some have had one or more leaks. Some have never had a problem. The technician cannot tell which from the build year.

What can help is history: the seller’s disclosure, records of repairs, bills over time and any known repiping. Ask for these, and share them with the technician.

What can also help is condition. If a line is exposed during a check, such as at the water heater or the main, the technician can say what they see.

Do not assume that a newer house is free of leaks. Newer houses can have problems at fittings and at points where lines rise through the slab. See PEX slab leaks.

The honest answer is that age is one input. A check tells you about the present, and history tells you about the past.

Where this comes up in Nevada

Buyers in every part of the state can ask for a leak check before closing. Local pages that cover the homes and conditions around this topic include Enterprise, Henderson, Reno and Minden.

Those pages describe the housing a buyer is likely to see in each place. More are on the areas page.

Common questions

Related reading: slab leak repair and slab leak detection.