The workers seems sparse and are in a hurry at least with leak detection with my hot tub. They used high pressure air to check for leaks. They did Find a leak behind the spa light. They applied silicon and put the light fixture back in the canister before it could dry. Within a day or two it gave out and the leak was worse. The technician E. Came back and I discussed leaving the light fixture out so the compound could effectively dry. They did not seem to want to stay long or come back to reinstall the light. So I asked them to leave it out of the canister and had someone else reinstall the light. It appears the leak was fixed. However. Many leaks popped up on the pool plumbing after they used the high pressure air. I'm having to have someone else reseal those pipes to get the air out of the system and stop minor leaks. I would recommend them if they have time to provide more than 30 minutes for the $300 leak detection fee and the $125 silicon application. Otherwise use someone else.