FIND IT FIRST
Leak Detection in Tempe, AZ
A meter that will not settle, a warm patch on the tile, a water bill that jumped for no reason. We find the leak before a single tile comes up.
- Licensed and insured
- Diagnosed and quoted first
- Answered 24 hours
The hardest leaks in Tempe are the ones you cannot see. Slab-on-grade construction means the supply lines often run inside or beneath the concrete, so a pinhole does not drip somewhere obvious. It wicks through the slab and shows up as a warm spot underfoot, a section of floor that never quite dries, or a water bill that climbed while your habits stayed the same.
Opening concrete to go looking is expensive and destructive, and doing it in the wrong spot is worse. The entire point of proper detection is to locate the leak to within a small area first, so that any repair is surgical rather than exploratory.
How we locate a leak without digging
We start with the simplest, cheapest test: isolate the system, watch the meter, and confirm there is genuinely a leak on the pressurized side rather than a running toilet or an irrigation valve. From there we use acoustic listening equipment to hear pressurized water escaping, and thermal imaging to read the temperature difference a hot-water slab leak leaves on the floor above it. Line tracing and pressure testing narrow it further.
Only once the leak is pinned to a small, confident area do we talk about access. Often the fix is a spot repair; sometimes, especially with a hot-water line, it makes more sense to reroute that run overhead than to keep opening the slab, which is where our slab leak repair work takes over.
Signs worth a detection call
These are the patterns that usually mean a hidden leak rather than a fixture problem:
- The water meter's low-flow indicator keeps turning with every fixture and the irrigation off
- A warm or damp spot on a tile or concrete floor that has no explanation
- The sound of running water in a wall or under the floor when nothing is on
- A water bill that stepped up and stayed up without a change in the household
- Cracking or lifting in flooring over a slab, or a musty smell near a wall base
Why Tempe gets more slab leaks than most cities
Two local facts stack up here. The water is very hard, in the mid-teens grains per gallon and higher, which is corrosive to copper over decades and thins pipe walls from the inside. And the caliche layer under the slab shifts as it wets and dries between monsoon storms and long dry spells, flexing the pipe at its weak points until a pinhole opens. Older copper in a 1960s or 1970s Tempe home has had a long time for both to do their work.
What a hidden leak quietly adds to your bill
A slab leak rarely announces itself with a flood; it shows up on the water bill. Tempe homes are metered, so every gallon a pinhole loses under the concrete is billed at the city rate, month after month, often long before anyone connects the rising bill to a plumbing fault. On a hot-water line the loss is worse, because you are also paying to heat water that runs straight into the ground and the caliche below it. That is why we treat an unexplained jump in the bill as a leak until proven otherwise, and why finding it early is not only about avoiding damage. Every month of delay is another month of paying for water nobody used, and the cost of detection is usually recovered quickly once the leak is actually stopped.
Detection is the front end of several repairs. Once a leak is pinned we handle the slab leak repair or reroute directly, and if the finding is failing pipe throughout the house we will talk honestly about a repipe rather than chasing one pinhole after another. A recorded camera inspection does the same locating job on the drain side.
Questions
Leak Detection questions
Can you really find a leak without breaking anything?
Yes, that is the whole method. Acoustic sensors, thermal cameras, meter isolation and pressure testing let us locate a hidden leak to a small area with the floor intact. Access only happens once we are confident where the leak is, which keeps the repair small.
My bill doubled but I see no water anywhere. Is that a slab leak?
It can be, and it is one of the most common ways a slab leak announces itself. Before assuming the worst we rule out toilets, the water heater and irrigation, then isolate and test the pressurized lines. A slow slab leak can waste water for months while showing almost nothing above the surface.
Is a warm spot on the floor always a leak?
Not always, but a persistent warm patch over a slab is a classic hot-water slab-leak sign, because the escaping hot water heats the concrete above it. We confirm with thermal imaging and pressure isolation rather than guessing from the symptom alone.
What does it cost to find one?
Detection is priced on the job, and it is far cheaper than opening concrete in the wrong place. The plumber assesses the situation and gives you a real number before any work starts.
Need a plumber in Tempe?
Call and describe the problem. You will reach a plumber who diagnoses and quotes before any work starts.