Hot Tub Wiring Installing hot tub wiring is quite a dificult task, especially if, like most people, you are unaware of spa devices and equipment. So if you're a rookie, you shouldn't install the wiring on your own, and insetad have a professional do it for you - wrong installation can be dangerous to your health or even life. In most areas installation of the hot tub wiring must be performed by a licensed and insured electrician. This is essential, as an unlicensed specialist will be practically not responsible for any shortcomings or damages during the installation.