The meter dial and its small triangle or star indicator show even a slow drip. Reading it twice, 15 minutes apart, with all water off confirms an active leak.
High Water Bill Leak Investigation in Tustin: Find Where the Water Goes
High Water Bill Leak Investigation in Tustin is for homeowners whose bill jumped and no faucet, toilet, or sprinkler explains it. We start with a meter test, then work through the supply lines, irrigation, and slab until the loss is found.
Serving Tustin and nearby areas.
How big is the investigation?
Sectional test
Isolating service line, supply lines, and irrigation to narrow the loss to one run.
- 1. Quick check A meter test and fixture check, often enough when a toilet or valve is the cause.
- 2. Sectional test Isolating service line, supply lines, and irrigation to narrow the loss to one run.
- 3. Slab search Listening and imaging to locate a hidden leak under the floor, planned in writing first.
Drag the needle to compareTouch and drag the needle
- 9Services from one local team
- 18Areas served around Tustin
- Meter firstThe meter test comes before any other equipment
- Rule outEasy causes are checked before the slab
What the Investigation Includes
The investigation covers testing and reporting. Repairs, if any are needed, are quoted separately in writing after the source is found.

Work order
High Water Bill Leak Investigation- Meter and bill review: A meter test with all fixtures off, plus a review of recent bills to date the increase. This tells us whether a leak exists and roughly how much water is being lost.
- Sectional pressure testing: The service line, cold supply, hot supply, and irrigation are isolated and tested one at a time, narrowing a house-wide problem to a single run of pipe.
- Fixture and irrigation checks: Toilets, faucets, water heater connections, hose bibs, and irrigation valves are checked for slow leaks that look minor but add up to hundreds of gallons a month.
- Slab leak detection scan: If the evidence points under the floor, acoustic listening and thermal imaging locate the leak and mark it, without opening the slab.
- Written findings report: A summary of tests, meter readings, and the located source, with repair options and tradeoffs, so you can decide next steps and share results with the water provider.
What the first visit covers
First visit
A meter test, a review of the bill timeline, fixture and irrigation checks, and sectional pressure tests to find which part of the plumbing loses water.
Bill investigations at homes
Most calls start with a bill that rose and no visible leak.
Doubled water bill
Usage jumped with no change in household habits.
Moving meter at rest
The dial turns with every fixture and appliance off.
Low water pressure
Pressure dropped throughout the house without an obvious cause.
Sound of running water
Hissing or trickling heard when nothing is in use.

Bill investigations at small businesses
Small commercial properties can lose water through fixtures, irrigation, or slab lines just as homes do.
Small offices
Restroom fixtures and slab lines behind finished walls.
Retail shops
Restroom and mop sink leaks that run unnoticed.
Multi-unit buildings
A shared meter makes one leak hard to place.
High Water Bill Leak Investigation in Tustin Explained
A high water bill is a signal worth following. Testing the meter first, then isolating sections, finds the source faster and keeps repairs limited to the part of the plumbing that is actually losing water.
High Water Bill Leak Investigation in Tustin is a diagnostic service that finds hidden water loss behind an unexplained bill increase by testing the meter, the supply lines, and the fixtures in a set order. It starts with the meter: all water is shut off inside and out, and a moving dial or flow indicator means water is leaking somewhere. Technicians then divide the system into sections, test each under pressure, and use acoustic listening equipment and thermal imaging to narrow the source. The result is a clear answer, not a guess.
A bill spike has many possible causes, and a slab leak is only one of them. Toilet flappers, irrigation valves, a failing water heater connection, and a leaking service line all raise usage. Tustin homes on concrete slabs add another possibility, since copper lines under the floor can leak for months without any visible sign. A water bill that keeps climbing with no visible leak is the long-tail problem we hear most, and ruling causes out in order is what makes the answer reliable.

- What it is
- A step-by-step test to find hidden water loss behind a bill increase.
- When it helps
- When the bill rises and no fixture, hose, or sprinkler explains it.
- What you get
- Test results, a located source, and a written plan for any repair.
How does the investigation work?
The investigation moves from simple checks to specialized equipment, stopping as soon as the source is found.
Tools and Methods We Use
Each method answers a different question. Together they leave very little to guess.
These close off sections of plumbing so each can be tested alone, showing which run of pipe is losing water.
A gauge on an isolated line shows whether pressure holds or falls, and how quickly, which indicates the size of the leak.
Ground microphones pick up the sound of water escaping from a pressurized line, tracing a hidden leak through concrete or soil.
An infrared camera shows temperature differences on floors and walls, revealing the warm path of a hot line leak or cool dampness from a cold one.
When to Request an Investigation
A Tustin Meadows household opens a bill showing twice the usual usage, with no new family members, pool, or watering schedule changes.
We run the meter test, divide the plumbing into sections, and test each one.
HomesA Laurelwood homeowner hears a faint hiss at night near the hall bathroom and notices the floor there is slightly warm.
The meter test confirms a leak.
HomesA Red Hill owner finds that the bill rose after summer irrigation, but zones look dry and the sprinkler timer seems normal.
We test the meter with irrigation off, then isolate the irrigation valve manifold and the main line.
HomesA Tustin Legacy homeowner sees no leak after checking every fixture, yet the meter keeps turning when the house is empty.
Since visible checks came up empty, we perform sectional pressure testing and a slab leak detection scan, using acoustic equipment on the…
Homes
Bill Investigations in Tustin Homes
High Water Bill Leak Investigation in Tustin often begins with a household that has checked every faucet and still sees the meter move.
Tustin Ranch
A master-planned community started by the Irvine Company in the 1980s, where extensive landscaping and irrigation zones are tested early in a bill investigation.
Old Town Tustin
The historic core of Tustin, where varied lot layouts and older plumbing runs make sectional isolation valuable for narrowing down a leak.
Cowan Heights
A hillside area on Tustin's northern edge, where longer service line runs from the meter make the main line a priority check.

- Tustin Ranch
- Old Town Tustin
- Cowan Heights
- Peppertree
From problem to finished result.
Slide to compare the photo with an illustrative inspection view. It is generated from the photo, not a measurement.
PhotoDoubled bill, stuck irrigation valve
Before: A homeowner saw usage double over two cycles. The meter moved with every fixture inside turned off, and the household assumed a slab leak because of the size of the jump.
After: Sectional testing closed the irrigation valve and the meter stopped. The leak was a valve stuck partly open in a front-yard zone. Replacing the valve ended the loss, and no floor work was needed.
Quiet hiss, warm hall floor
Before: A household heard a faint hiss at night and felt a warm patch in the hallway. The meter moved with the house valve closed, and bills had climbed for three months.
After: Pressure testing isolated the hot line and thermal imaging marked the leak. A written plan compared a short tunnel with rerouting, and the owner chose the method that fit the floor finish.
Pressure drop, leaking service line
Before: Water pressure dropped across the house and the bill rose steadily. A damp area appeared near the front planter, though no visible pipe was exposed.
After: The meter test pointed to the main service line. Isolating it confirmed the loss between the meter and the house, and the leak was located and repaired. Pressure returned to normal and the meter held still.
Problems This Investigation Solves
Homeowners usually come to us with a symptom, not a diagnosis.
The water bill doubled and nobody can explain why
A hidden leak can waste hundreds of gallons daily. Each extra billing cycle adds to the bill and may soak soil beneath the foundation.
Water pressure dropped throughout the house with no clear cause
A leak between the meter and the fixtures can reduce pressure everywhere. The drop often worsens as the leak widens, and it can strain appliances.
A warm floor spot and a rising bill together
The combination suggests a leaking hot line under the slab. The leak wastes water and energy, and moisture under the foundation keeps spreading.
Wet patches in the yard and a bill that keeps climbing
A leaking service line or irrigation pipe can saturate soil and raise usage for weeks. Standing water may also damage landscaping and hardscape.
What a Bill Investigation Gives You
An investigation turns a vague worry about the bill into a specific answer.
A definite answer
The meter test and sectional pressure tests rule causes in or out, so you know whether the leak is inside, outside, or under the…
Stops the running meter
Once the source is found and repaired, the meter should stand still with every fixture off.
Avoids needless replacements
Swapping toilets, valves, and faucets without testing can cost more than the investigation itself.
Records for the utility
A written summary of the tests and findings gives you something to bring to the water provider when asking about the bill.
What does an investigation cost?
The investigation itself is priced from a written estimate after inspection, because scope depends on how many tests the house needs.
Included
Quoted after a first look
- Meter and bill review
- Sectional pressure testing
- Fixture and irrigation checks
- Slab leak detection scan
What changes the scope
Quoted after a first look
- Size of the property
- Where the leak sits
- Number of leaks found
- Access to shutoffs and meter
What you receive in writing
Clear records you can keep and share.
Meter test readings
Readings taken with all water off, before and after any repair.
Sectional test results
Which sections held pressure and which lost water.
Repair options summary
Located source, access choices, and tradeoffs, in a written estimate.
Diagnosing Hidden Water Loss
Tracing a bill spike takes a methodical order of operations.

Low-flow indicator
The small dial on the meter turns with even a slow drip, showing a leak that is too small to hear.
Pressure hold curve
How a gauge on an isolated section falls over minutes shows whether that section is the one leaking.
Bill timeline
A sudden step up points to a new leak, while a slow climb often points to wear or seasonal use.
Do we cover your part of Tustin?
Type your ZIP code or town to check. If yours is not listed, ask us anyway.
Tustin ZIP codes
- 92780
- 92782
- 92623
- 92781
Towns we serve.
Based in Tustin and covering the places around it. Pick one for local details.
Frequently Asked Questions
Short answers for the first few minutes. The team can cover the rest.
Describe what you are seeing and we will point you to the right next step.
(657) 359-9075Shut off every fixture and appliance, then check the meter: if the dial or low-flow indicator moves within 15 minutes, water is leaking somewhere. A bill that rises with no change in habits, low pressure, the sound of running water, and warm floor spots all support that result. A still meter means usage, not a leak, is the more likely cause.
The investigation is priced from a written estimate after inspection, since scope depends on how many tests the house needs. A simple find, such as a toilet flapper, costs far less than a slab repair.
Yes, a slab leak can run for months with nothing visible, because the water drains into soil under the foundation. The bill and the meter are often the only clues. Other signs include a warm floor spot, low pressure, or a hissing sound. Acoustic listening and pressure testing can locate the leak without opening the floor.
Do the meter test first: turn everything off and watch the meter for 15 minutes. Then check toilets by adding a few drops of food coloring to the tank and waiting 10 minutes without flushing. Look at irrigation zones and hose bibs for wet ground. If the meter still moves and nothing is dripping, call for a leak investigation.
Get Answers About Your High Water Bill
(657) 359-9075A surprise bill deserves a real answer. Call (657) 359-9075 and describe what you are seeing, and we will walk you through a meter test and schedule an investigation if the dial is moving.
Contact Tustin Slab Leak Repair
Call (657) 359-9075 and tell us what you are seeing, whether that is a warm floor, a high bill or a meter that will not stop. We will ask a few questions about your home and the water meter, and then set up an inspection for your address in Tustin or a nearby Orange County city.








