The average price of leak detection in Pinellas County is $178-$350, depending on how long it takes to find the leak. With most leaks, We are able to find them within the hour for $178 total. We charge an $89 service call plus $89 for the first hour of detection, which is how we get to $178, and leak detection is capped at $350 so the price stays fair. Our main goal is to save you money and time and explain the best way to fix your leak.