Shut off all the water in your house/building – make sure the hot water heater and toilets are not filling up.
Go out to your meter and look to see if dials are moving – even very slowly.
If moving – there is a leak.
Go back into the house/building and shut off the main valve to the house/building which is usually near the hot water heater.
Go back and look at the meter, if it is still moving the leak is somewhere between the house and the meter (underground). If it is not moving, the leak is in the house/building.
Please call us if you have confirmed that there is a leak before you contact a leak detection company.