A commercial leak-detection quote should name the system and area being investigated, proposed methods, access and shutdown needs, deliverables and limits. Ask whether repair, opening finishes and restoration are included. Detection narrows uncertainty within the inspected scope; it should not be sold as a guaranteed location for every hidden leak or as proof that all piping is sound.
What information should you provide?
Send the building and suite, affected system if known, symptoms, timing and relevant meter readings. Include accessible plans, earlier repair findings and areas that cannot be entered during normal operations. Note whether water is actively escaping or the concern is a bill increase without visible damage.
Commercial submeter checks and overnight water-use investigation can help organize the evidence. Do not close unknown valves to produce a cleaner data set.
Which parts of the diagnostic proposal need clarity?
Ask for specific scope statements:
| Scope item | Question to ask |
|---|---|
| System and boundary | Which piping, equipment or area will be investigated? |
| Method | What does the proposed test or survey detect? |
| Access | What spaces, records or exposed connections are needed? |
| Disruption | Is an agreed shutdown or equipment interruption required? |
| Deliverable | Will you receive observations, test scope and marked findings? |
| Limitations | Which concealed or inaccessible areas remain unresolved? |
| Followup | What happens if the first method does not resolve the question? |
A sewer camera views the interior of the accessible drain route; it is not a camera inside a pressurized water line. Camera inspections and supply leaks explain that distinction. The quote should identify why its method fits the system.
Are repair and restoration part of detection?
Get a written answer. Opening a wall, excavating, repairing piping and rebuilding finishes may be separate scopes. Arizona's ROC recommends detailed written estimates and clear responsibilities. Comparing a plumbing quote is easier when these inclusions and exclusions are visible.
Plan occupied-area access with the commercial access guide. After investigation, ask for the evidence, inspected boundary and next recommended step. Use the closeout record checklist when repairs follow. A useful finding states what was observed and what remains uncertain, without turning a limited test into a warranty for the entire building.