What Should You Ask a Leak Detection Pro?
Leak detection is a service where a few questions before booking prevent nearly all the common surprises, separate repair bills, escalating costs, no documentation. The right questions also reveal whether you’re hiring a transparent pro or one who’ll nickel-and-dime you. Here’s what to ask, and why each answer matters.
Does the Detection Fee Apply Toward the Repair?
Ask this first. Because detection and repair are usually separate charges, whether the detection fee is credited toward the repair, if the same company does the fix, can save you the entire detection cost. Many pros credit it. This one question can meaningfully change your total bill, so lead with it, and let the answer weigh into which pro you hire. It also tells you something about how the company prices: one that credits the fee is betting on doing your repair and treating detection as a gateway, while one that charges separately for both may see them as independent profit centers. Neither is wrong, but knowing which you’re dealing with helps you compare quotes on equal footing.
Which Detection Methods Do You Use, and Why?
A good pro has more than one method, visual, acoustic, infrared, and chooses based on your leak, not on what bills highest. Asking this reveals whether they have the right tools for a hidden leak and whether they’ll match the method to the need. Be wary of anyone who jumps straight to the priciest method without explaining why your leak requires it, or of anyone with only one tool who may not be able to find a stubborn leak at all. (For more on this, see Hidden Costs of Leak Detection to Watch For.)
Will You Provide a Written Report?
Ask whether you’ll get documentation of what they find, the leak’s location, the method used, the recommended repair. A written report is valuable for arranging the fix (especially if a different contractor does it) and for insurance claims on the resulting water damage. A pro who provides one is doing thorough work, and the report becomes your reference point for every step that follows. (For more on this, see How to Find the Best Leak Detection Pro Near You.)
Do You Also Do the Repair?
Some detection specialists only find leaks; others find and fix. Knowing upfront tells you whether you’re hiring one company for the whole job or lining up a separate repair. If they do both, the fee-credit question becomes even more relevant, and a single company handling both can mean less coordination and a smoother path from finding to fixing. If they only detect, ask whether they can recommend or coordinate with a repair plumber, and make sure their written report is detailed enough to hand off. A detect-only specialist can be excellent, dedicated detection is their whole craft, but you’ll want the handoff to the repair to be clean rather than a game of telephone.
What Might This Cost, Start to Finish?
Even though the repair cost can’t be known until the leak is found, a good pro can give you a range for detection and a sense of what different repair scenarios might run, an accessible pipe fix versus a slab leak, for instance. Asking for the full picture, not just the detection fee, helps you budget for the two-step reality instead of being surprised by the second bill. (For more on this, see How to Budget for Leak Detection and Repair.) EPA WaterSense estimates the average household wastes about 9,300 gallons a year to leaks, and a single dripping faucet more than 3,000 gallons.
How Confident Are You, and What’s It Based On?
Especially before an expensive repair like opening a slab, ask how certain the pro is about the leak’s location and what that certainty rests on. A confident pro can explain what the equipment showed and why they’re sure. Vague certainty before costly, destructive work is a reason to slow down, or get a second opinion.
Are You Licensed and Insured?
Detection often precedes plumbing repair, so confirm the pro (or the company doing the repair) is licensed and insured. It’s basic protection, and a licensed pro is more likely to detect accurately and recommend the right fix rather than the most profitable one. Licensing means they’re accountable to a standard and know local code, which matters the moment detection turns into a permitted repair. Insurance protects you if something goes wrong during the work, especially relevant when detection involves moving furniture, accessing crawlspaces, or the eventual repair opens walls or slab. Ask to see proof rather than taking it on faith; a reputable pro produces it without hesitation.
Putting It Together
These questions, especially the fee-credit question and the written-report question, turn leak detection from a potential string of surprises into a transparent, plannable service. A pro who answers all of them clearly is one who’ll treat you fairly through both finding and fixing the leak. When you’re ready to get quotes from qualified local pros, connect below.
Frequently Asked Questions
Whether the detection fee applies toward the repair. Since detection and repair are usually separate charges, crediting the fee, if the same company fixes it, can save the entire detection cost.
Yes. A good pro has visual, acoustic, and infrared methods and chooses based on your leak, not on what bills highest. Be wary of anyone jumping straight to the priciest method.
It documents the leak's location, the method, and the recommended repair, valuable for arranging the fix (especially with a different contractor) and for insurance claims on the water damage.
Yes. Some specialists only detect; others detect and fix. Knowing upfront tells you whether it's one company for the whole job, and makes the fee-credit question more relevant.
Yes, since detection often precedes plumbing repair. Confirm the pro or repair company is licensed and insured, a licensed pro is more likely to detect accurately and recommend the right fix.