We only use American Leak Detection for any leak issues and have done so for years. They have the depth necessary to repair all kinds of leaks if asked after the problem has been found. They partner with you. Their initial visit is not inexpensive however you do get the full value of what you are paying for. They are also reasonable people to guide you. We had Mr. Dan Fitts out recently. Could not ask for a more professional Senior Technician. Mr. Fitts didn't let go until he found the problem and created the solution with experience. This only validates why we continue to use this company. I count on them for final solutions. They deliver. I'm very pleased.