Fix Leaking Water Heater Connection

My water heater itself is fine, but the pipe or fitting right above it has started to drip steadily. I need someone who can pinpoint the exact spot, replace or reseal the connection, and leave the area bone-dry when you’re done... (Budget: $250 - $750 USD, Jobs: Construction, Electrical Engineering, Engineering, Matlab and Mathematica, Mechanical Engineering, Plumbing)