How to Prepare for Leak Detection Visit

How do you prepare for leak detection visit at home?

Prep has one goal: let the company reach every test point fast, and let the tests read clean. Clear a path to the meter, the water heater, and every fixture shutoff, so no test point sits behind stored boxes or furniture. Note where signs show and when they started, in plain words, with dates if you have them. Keep pets out of the work area for the whole visit, so listening gear hears the pipe and not a pet moving through the room. Have the water bill handy, because a bill that jumped at the same time as the signs helps the company read the case. Leave walls closed until testing marks the spot, because an early opening spreads the wet area and can miss the spot. The checklist below puts that prep in visit order.

1. Clear a path to the water meter so the company can reach it at once
2. Clear access around the water heater and every fixture shutoff
3. Write down where each sign shows and when it first started
4. Keep pets out of the work area for the whole visit
5. Have the water bill handy for the company to read
6. Leave walls and floors closed until testing marks the spot
7. Note any stiff shutoff valve for the company instead of forcing it

If a shutoff valve is stiff or stuck, do not force it. Note it for the company instead, so the company can plan around it. If a pet cannot leave the home, set up one closed room away from the work area, with water and a bed, and tell the company where that room sits. Prep is not a test. It only clears the way for the tests to do their job.

Why does clear access matter so much?

Detection tests run at fixed points: the meter, the water heater, fixture shutoffs, and the walls and floors near the signs. A test point behind boxes, a parked car, or a stack of stored items costs time and can blur a reading, because the company cannot place gear flat or listen clean at a blocked point. Clear a path wide enough to walk through with gear, and clear the floor around the water heater and the meter. A clear path to both, on the morning of the visit, keeps the first test, the meter test, from starting late. The two minute meter test shows why that first reading matters: it tells the company if water is leaving at all, before any other test runs.

What notes help the company most?

Notes beat memory on a visit, because signs that seemed small at first often matter later. Write down where each sign shows, in plain words: a damp patch by the hall bath, a warm spot on the kitchen floor, the sound of running water at night. Write down when each sign started, and if it grew, shrank, or stayed the same. Note any event tied to a sign: a watering run, a spill, a fixture repair, a bill that jumped. Note which fixtures were in use when a sign showed, and if the sign shows with all fixtures off. Hand the notes to the company at the start of the visit. The company reads the notes, checks them against the meter and the moisture readings, and plans the test order from them.

Why leave walls closed until testing marks the spot?

Water travels. It runs along framing, under flooring, and down a slab before it shows, so the wet patch on view often sits far from the break. An opening cut before testing can land on the wet patch and miss the break, and it spreads the wet area while the search goes on. Testing reverses that order. The meter test shows water leaving. Moisture readings map the wet section. Listening gear pins the spot inside that section. Only then does the company mark a spot for opening. Your plumber opens the marked spot and repairs the line from there. After the leak is found covers that next order in full: report, repair, and retest, each in turn. Leave the wall closed, and the opening stays small and lands on the break.

What about pets, bills, and shutoffs?

Pets matter because listening tests need a quiet house. A dog moving through a room, a cat on a floor above a slab line, or a pet at a door can mask the sound the company listens for. Keep pets out of the work area for the whole visit, in a closed room or outside the home if that fits. The water bill matters because it dates the case. A bill that jumped in the same month as the signs points to a leak that started then, and the company can match that date to the meter reading on the day. Shutoffs matter because pressure tests isolate sections of pipe at shutoff points. What a detection report holds shows what the company writes up from all of it: the spot, the tests run, and the notes your plumber works from.

Which test fits your signs?

Prep also helps you see why the company picks one test before another. A climbing bill with no visible water points to the meter test first. A warm floor points to thermal imaging, then listening on the warm section. A damp wall points to moisture readings, then listening on the wet section. A drain symptom points to a camera inside the drain line. Which test fits each symptom matches each symptom to its test in plain terms, and how a detection visit runs follows that order from meter to mark.

What happens on the day of the visit?

On the day, the company starts at the meter, reads the notes, and walks the signs with you. Then the tests run in order, and each test narrows the search. When two tests point at the same spot, the company marks it and writes the report. You hand that report to your plumber, and the plumber opens the marked spot. That whole order is why prep matters: clear access, plain notes, pets out of the way, the bill handy, and walls closed until the mark. Do that prep, and you prepare for leak detection visit in the way that helps the tests most: nothing opened early, nothing blocked, and every test point ready when the company arrives.

Frequently asked questions

Related

• How Leak Detection Works
• How to Check Your Water Meter for a Leak
• After the Leak Is Found
• What a Leak Detection Report Includes
• Contact

Last updated: November 1, 2026.