Questions to Ask Before Hiring a Pool Leak Detection Company
A few smart questions up front tell you whether a company will actually find your leak — or just guess and hand you a bill. Here’s exactly what to ask.

Before hiring a pool leak detection company, ask how they find leaks (they should describe pressure, dye, and acoustic testing), whether the fee is flat or hourly and if it’s credited toward repair, whether you get a written report, and if they’re licensed and insured. Vague answers — or a rush to “just drain it” — are your signal to keep looking.
Hiring the right company matters as much as detecting the leak itself. The good news: a handful of questions to ask before hiring a pool leak detection company will quickly separate the pros from the guessers. You don’t need to be an expert — you just need to know what a solid answer sounds like.
Group your questions into four areas: how they work, what it costs, who they are, and what you walk away with. Here’s what to ask in each.
Questions About Their Process
How a company finds leaks tells you almost everything. Ask:
- How do you locate a leak? You want to hear about pressure testing, dye testing, and acoustic or electronic equipment — not “we’ll take a look around.”
- Do you find leaks without draining the pool? The right answer is usually yes; draining should be a last resort, not step one.
- How do you confirm you’ve found the actual leak? Good technicians cross-check with a second method before marking a spot.
- How long does a typical detection take? Most jobs are a single visit — here’s how long detection usually takes.
Questions About Pricing
Clear pricing up front prevents surprises later. Ask:
- Is the fee flat or hourly, and what’s included? A flat fee with the tests spelled out is easiest to compare.
- Do you credit the detection fee toward a repair? Many companies do — it’s always worth asking.
- Are there extra charges for underground pressure testing, a diver, or a return visit?
- Will I get the price in writing before you start? Yes should be automatic. For typical ranges, see our pool leak detection cost guide.
Questions About Credentials and Experience
You’re letting someone diagnose an expensive asset. Make sure they’re qualified:
- Are you licensed and insured? Insurance protects you if something is damaged during testing.
- How long have you been finding pool leaks specifically? Leak detection is a specialty — experience shows in accuracy.
- Can you share reviews or references? Reputable companies are happy to.
- Do you also do repairs, or just detection? Either is fine — but if they do both, an independent, documented diagnosis keeps things honest.
Questions About What You Get
The deliverable matters as much as the visit. Ask:
- Will I get a written report? A report with the leak’s location and recommended fix is your protection at repair time.
- Will you show me exactly where the leak is? You should leave knowing the precise spot, not a vague area.
- What happens if you don’t find a leak? An honest company will tell you it’s likely evaporation rather than invent a repair.
Those answers also tell you how accurate their detection is likely to be — precision comes from process, not price.
What Good Answers Sound Like
You’re listening for confidence and specifics. A strong company explains its testing methods plainly, quotes a clear fee, offers a written report, and never pressures you toward draining or an immediate repair before finding the leak. If the answers are vague, evasive, or lead with worst-case scenarios, keep looking — and remember that a precise diagnosis is almost always worth paying for. When you’re ready, a professional pool leak detection service should welcome every one of these questions.
Keep reading: Pool Leak Detection Red Flags to Watch For
Frequently Asked Questions
What’s the most important question to ask?
How they actually find leaks. If they describe pressure, dye, and acoustic testing, you’re talking to a pro. If they can’t explain their method, that’s the biggest red flag of all.
Should I get more than one quote?
For a straightforward detection, one reputable company is usually enough. But if answers feel vague or the price seems high, a second opinion is cheap insurance — especially before any repair.
Is it rude to ask about licensing and insurance?
Not at all. Any legitimate company expects it and will answer without hesitation. Hesitation itself is your answer.
What if they push me to drain the pool right away?
Be cautious. Modern detection finds most leaks with the pool full, so leading with “we need to drain it” before any testing is a sign to ask more questions or call someone else.
The Bottom Line
Ask how they find leaks, what it costs, who they are, and what you get — clear answers point you to a company that will actually solve the problem.
Not sure where your leak is yet? Take our free 60-second assessment first, so you walk into any conversation already informed.