A HIRING GUIDE FOR COMMERCIAL PROPERTY OWNERS & MANAGERS
When to Hire a Commercial Water Leak Detection Company—and How to Choose One
You have a water problem to resolve, a building to keep operating and a contractor to select. Before approving a leak detection visit, establish whether specialist investigation is the right next step. Then compare companies on their ability to investigate your particular system and give you evidence you can use.
This guide helps commercial property owners and managers make those two decisions. It includes a hiring decision table, questions for interviewing companies, examples of stronger and weaker answers, and a comparison worksheet you can take into a procurement discussion.
Do you need a water leak detection company?
A leak detection company is useful when you need to reduce uncertainty about a suspected leak before deciding where or how to repair it. You may already have a maintenance contractor capable of doing that work. The important question is whether the proposed team can investigate the problem, rather than simply replace accessible components or make exploratory openings.
If water is actively creating a hazard, arrange the emergency response first. Keep people away from water near electrical equipment or unstable finishes, and follow the building’s response procedures. Do not enter standing water to reach electrical controls. OSHA explains the danger in its guidance on electrical hazards in flooded areas. Emergency mitigation and a later specialist investigation may both be necessary.
| Your situation | Useful first step | When specialist detection becomes relevant |
|---|---|---|
| A visible fixture or exposed connection is leaking | Have an appropriate maintenance or plumbing professional assess the known fault. | The source is unclear, the problem recurs, or evidence suggests another concealed fault. |
| Consumption has risen without an explanation | Check billed volume, reading dates and operating changes; obtain meter data where available. | Water use remains unexplained after known demand has been considered. |
| A ceiling or wall repeatedly becomes wet | Record location and timing, including weather and nearby equipment use. | You need to distinguish possible sources and plan targeted testing. |
| A buried service line or concealed supply is suspected | Gather drawings, meter information and previous findings. | The repair team needs a better-supported search area before opening surfaces. |
| A previous repair did not resolve the symptoms | Assemble the original diagnosis, work record and continuing observations. | The source, extent or original explanation needs reassessment. |
| You want protection against future incidents | Define the spaces, water supplies and alarm response you want to protect. | You need a monitoring-system assessment; this is a different scope from locating an active leak. |
What evidence makes a specialist visit worthwhile?
Useful evidence includes an unexplained consumption pattern, repeated moisture at the same location, a documented failed repair, or a proposed opening whose location has not been adequately supported. None proves a particular cause. Together, these details help define the investigation you are purchasing.
A moving meter alone is insufficient to diagnose a commercial leak. Cleaning, irrigation, tenants and equipment may still be using water. EPA’s commercial leak detection and repair guidance (PDF) describes reviewing consumption, observing building water uses and investigating anomalies. Its quiet-period meter check assumes water uses can actually be stopped. Do not interrupt essential services to create that condition without an authorized plan.
Where available, hourly or other interval readings can help establish when the change began. EPA’s meter-data guidance for facility managers explains how that information can support investigations. If you need help organizing the initial evidence, use our high-water-bill checklist and water-leak observation log.
Are you hiring the right kind of specialist?
Describe the symptom before naming the service you think you need. “Water appears above Unit 12 after heavy rain” gives a provider a useful starting point. “We need acoustic testing” selects a method before someone has established that it fits the suspected source.
Ask each company which systems it investigates: domestic supply piping, buried water services, drainage, mechanical equipment, or the building exterior. An organization may cover several of these, but experience with one does not establish capability in all of them.
For recurring rain-related moisture, a building-envelope investigator may be appropriate. Rimkus describes investigating commercial building water-entry paths, including targeted testing of the exterior. For an identified mechanical equipment issue, the relevant service contractor may be the better first call.
A company that refers you to another specialty after reviewing the evidence may be demonstrating sound judgment. That is more useful than an immediate assurance that one tool can resolve every possible source.
Give every candidate the same investigation brief
Comparisons become much easier when companies respond to the same problem description. Prepare a short brief with the property type, affected locations, dates, photographs, available consumption data and previous repairs. Mark uncertain information as uncertain.
Include the conditions that could change the work: shared meters, occupied units, restricted rooms, limited parking, tenant notice, escort requirements and acceptable service-interruption windows. Identify who can authorize further testing or an opening.
Then state the decision you need the investigation to support. For example: “Determine whether the unexplained supply use can be narrowed to a branch and explain what evidence is needed before opening the corridor floor.” That is a more useful instruction than “find all leaks in the building.”
Send the brief without suggesting that every contractor must use the same equipment. You want comparable outcomes and boundaries, while allowing each company to explain its reasoning.
12 questions to vet a commercial water leak detection company
Use these questions during the initial conversation and confirm the important answers in the written proposal. The stronger answers below are evaluation criteria, not promises that any particular company has met them.
1. Have you investigated this type of system in a comparable commercial property?
Request: A relevant example, a redacted report or a reference the company has permission to provide. Ask what was uncertain at the start, which evidence narrowed the search, and what the client received.
A stronger answer connects the example to your system and operating conditions. Experience in an occupied multi-tenant property may matter more to your assignment than a large number of unrelated residential jobs.
Clarify further if the answer consists only of years in business, a service-area list or general reviews. Those may support reputation, but they do not establish experience with your problem. Respect confidentiality; a redacted example can still demonstrate the quality of the work.
2. Who will actually attend, and who is responsible for the findings?
Request: The attending technician’s relevant experience, the supervisor or reviewer where applicable, and the name of the business contracting with you. Ask whether subcontractors will carry out any part of the assignment.
A stronger answer explains the responsibilities of the people assigned to your job and gives you a contact for technical questions.
Clarify further if the company describes a senior expert during the sales call but cannot explain that person’s involvement. Relevant training matters, but a certificate or equipment brand should be tied to the work the person will perform.
3. What credentials and insurance apply to the work you are proposing?
Request: Relevant license details where required, the name of the license holder and evidence of insurance for your organization’s review. Confirm which credentials apply to diagnosis, repair, excavation or other separately proposed work.
A stronger answer lets you verify the applicable credentials with the issuing authority and directs insurance questions to the appropriate contact. For Georgia properties, use the Georgia Secretary of State’s plumbing-license information and license-search link when plumbing licensure is relevant. Ask the licensing authority about requirements for the actual scope if these are unclear.
Clarify further if “licensed and insured” is offered without verifiable details. Do not assume a business registration, training certificate or unrelated license covers the proposed activity. Have your insurance or procurement contact assess whether the supplied coverage meets the property’s requirements.
4. What would you investigate first, and why?
Request: A staged outline based on your brief: what the first assessment can establish, what would justify a particular test and what result would trigger another step.
A stronger answer explains how the team will distinguish plausible sources and narrow the search. It may identify missing drawings or usage information that should be obtained before attendance.
Clarify further if extensive opening work is proposed before the provider has reviewed the available evidence, or if a precise repair location is promised from a telephone description. Targeted access can be appropriate; the proposal should explain the reason and approval process.
5. Which methods suit this assignment, and what are their limitations?
Request: The reason for selecting the proposed methods, conditions that could affect the result and how findings will be checked. You are assessing the explanation, not buying the longest equipment list.
A stronger answer connects the method to the suspected system. It explains how the team would respond if the initial evidence is inconclusive.
Clarify further if a tool is presented as universally decisive. FLIR explains that thermal imaging identifies temperature patterns that need interpretation; it does not provide an X-ray view through walls or automatically prove a pipe failure. Our leak detection methods guide gives additional questions for that discussion.
6. How will you manage tenant access and necessary service interruptions?
Request: Expected access needs, equipment or supply interruptions, the people who must authorize them and arrangements for restoring service.
A stronger answer identifies dependencies before scheduling. It distinguishes ordinary access from activities that affect essential operations or require coordination with another specialist.
Clarify further if the plan depends on trying unidentified valves during the visit. Fire protection needs particular care: NFPA’s discussion of sprinkler-system impairments explains why a compromised fire-water supply is a separate issue. Any work affecting it needs the appropriate qualified team and site procedures.
7. What written evidence will we receive?
Request: A sample or description of the deliverable: systems assessed, tests performed, observations, photographs, marked areas where relevant, limitations and recommended next steps. Agree when it will be supplied.
A stronger answer distinguishes a confirmed finding from a suspected area and identifies the evidence supporting each. It explains what a repair contractor can reasonably do with the report.
Clarify further if the only deliverable is a verbal instruction to dig or open a wall. A short report can be sufficient for a small assignment; what matters is whether it supports the decision you need to make.
8. What happens if the first visit does not confirm the source?
Request: The process for documenting an inconclusive result, recommending additional work and obtaining authorization for further charges.
A stronger answer acknowledges uncertainty and explains the value of what can still be established. Ruling out a proposed source or narrowing the system can be useful if the evidence is documented.
Clarify further if the company either promises an unconditional result without assessing the assignment or offers unlimited open-ended investigation without decision points. An honest limitation is preferable to unsupported certainty.
9. Does your fee cover detection, repair or both?
Request: Separate descriptions of diagnosis, access, repair, drying and reinstatement. Identify which activities are included, optional or provided by someone else.
A stronger answer makes the commercial arrangement clear. A detection-only specialist and a company that also repairs can both be appropriate. For an integrated service, agree how findings will be documented before additional repair work is approved.
Clarify further if a small attendance fee is presented as a complete solution while necessary testing or documentation remains unspecified. For a detection-only assignment, confirm how findings will be handed to your repair contractor.
10. What can change the price, and when will you seek approval?
Request: The pricing basis, included attendance or testing allowance, travel or out-of-hours charges where applicable, report costs, and the process for additional work.
A stronger answer states the boundaries of the quote and gives you a clear approval point before costs expand. If the fee is hourly, ask for a budget allowance or review point rather than assuming hourly work is unsuitable.
Clarify further if exclusions are missing or the provider will not explain a large price difference. The FTC’s consumer guidance on checking contractors and comparing written estimates supports basic checks such as verifying credentials and considering more than the lowest price. Your commercial agreement also needs your property’s specific requirements.
11. What does any accuracy guarantee or return-visit policy actually cover?
Request: The written terms, including the defined outcome, exclusions, time limits and available remedy. Ask how the policy applies if opening the marked area does not confirm the suspected fault.
A stronger answer explains the commitment in terms you can evaluate alongside the proposed scope and evidence.
Clarify further if “guaranteed” is used without terms or is taken to mean every possible leak will be found. A guarantee does not replace a suitable method, competent personnel or a useful report. Absence of a blanket guarantee does not, by itself, disqualify a company.
12. How will your findings support the repair and verification process?
Request: The proposed handover, any recommended confirmation before access work and whether a return test is included or separately available.
A stronger answer distinguishes the investigation’s conclusion from proof that a later repair resolved the problem. It identifies who is responsible for the next step.
Clarify further if the proposal treats locating a suspected area, repairing a fault and confirming the building is ready for normal use as the same outcome. Use our questions to resolve before authorizing repair to define those responsibilities.
How to compare companies and choose the strongest fit
First confirm the essentials: the provider accepts the relevant scope, can supply appropriate people, meets applicable credential and site requirements, and offers a clear agreement. A lower price should not compensate for a missing essential requirement.
Then compare the evidence behind the proposals. Prefer demonstrated relevance over broad claims. A recognizable brand, high review count or expensive-looking instrument does not answer whether the assigned team can investigate your system and provide the required findings.
| Comparison item | Company A | Company B | Company C |
|---|---|---|---|
| Relevant commercial example or reference | ________ | ________ | ________ |
| Assigned technician and responsibilities | ________ | ________ | ________ |
| Applicable credentials checked; insurance reviewed | ________ | ________ | ________ |
| Investigation boundary and reasoning | ________ | ________ | ________ |
| Access, interruption and restoration plan | ________ | ________ | ________ |
| Written findings and limitations included | ________ | ________ | ________ |
| Fee, exclusions and additional-work approval | ________ | ________ | ________ |
| Inconclusive result and return-visit terms | ________ | ________ | ________ |
| Unanswered questions before selection | ________ | ________ | ________ |
Write down the evidence received, not just “yes” or “no.” “Redacted report from an occupied office building; attending technician explained the test limits” is more useful than “experienced.” This worksheet is a decision aid, not a certification or an objective ranking of contractors. Print or save it using your browser; it submits no information through this website.
Compare scope before comparing price
Imagine two proposals: one includes attendance and a verbal finding; another includes staged testing, marked observations and a written handover. Their prices are not directly comparable until you establish which outcome your property requires.
Ask each candidate to identify missing items and price the same defined assignment where feasible. Record the reason for the selection: relevant experience, credible plan, useful evidence, manageable disruption and clear cost exposure. That creates a more defensible purchasing decision than choosing solely on the headline fee.
Which warning signs deserve further scrutiny?
Pause and clarify a proposal when the company cannot identify the contracting business or attending team, offers unverifiable credentials, promises certainty before reviewing the problem, or will not define what the fee buys. Pressure to authorize unrelated major work before you receive the findings also deserves scrutiny.
Be equally cautious about unsupported comparisons such as “all plumbers use destructive methods” or “only our technology can find commercial leaks.” Ask for the reasoning and evidence relevant to your assignment. Useful specialization can exist in a small business, a larger investigation firm or a full-service contractor.
An unavailable reference is not automatically evidence of poor work, particularly where a client’s operations are confidential. Ask for another way to assess capability, such as a redacted deliverable and a detailed explanation of the investigation process.
Before booking, define what you are authorizing
Keep a written record of the investigation boundary, agreed fee, assigned contact, access arrangements and deliverables. Identify which activities require further approval, especially openings, excavation, service interruptions and repair. Agree how unexpected hazards or evidence outside the original scope will be handled.
Make the outcome concrete. An illustrative first-stage instruction might be: “Review the supplied consumption records, assess the identified domestic-water system and report what is confirmed, what remains uncertain and which next test or access step is justified.” This is an example of defining a purchasing outcome, not a technical test specification or a report from an actual job.
Prepare records and access using our leak detection appointment checklist. After the visit, check the received findings against the agreed deliverables before approving the next work package.
Common questions about hiring a commercial leak detection company
Are leak detection companies worth hiring?
They can be valuable when uncertainty about a concealed source prevents a sound repair decision. The purchase should produce evidence that helps you choose the next step. If the fault is already visible and straightforward, an appropriate repair contractor may be sufficient. Use the decision table above to define what specialist investigation would add.
Should we choose a detection-only company or one that also repairs?
Either model can work. Detection-only requires a clear handover to the repair team. An integrated provider requires clear approval boundaries between diagnosis and additional work. Compare the assigned people, proposed investigation and documentation rather than assuming either business model is inherently more qualified.
Can we use our existing plumber?
Yes, if the company can demonstrate the capability needed for the assignment. Ask the same questions about comparable investigations, methods, deliverables and limitations. If the work extends beyond its capability, ask whether it recommends a specialist and who would contract with that specialist.
How much should we budget for commercial leak detection?
There is no single price that reliably describes every commercial assignment. Request a scoped quote for the affected system, access conditions and required report. For uncertain work, compare a defined initial assessment and approval points for further investigation. Separate those costs from repairs and permanent monitoring.
What is the most important question to ask?
Ask: “What will you give us that explains what was confirmed, what remains uncertain and what should happen next?” A useful answer connects the investigation to the decision the property owner must make. Then verify that the experience, people and scope support that promise.
Choose the company that can support your next decision
Start with the problem you need resolved. Establish whether a specialist investigation is necessary, give candidates a consistent brief and compare the evidence behind their answers. Select the strongest fit for your system and property requirements, with a clear investigation scope and a usable handover.
If you are seeking help in Georgia, review Georgia Water Leak Detection’s service information and use the questions in this guide to confirm its fit for your commercial property, required system and documentation needs. The link reflects SteelToe Digital’s marketing-client relationship; it is not an independent ranking or a finding that the company meets every requirement above.