The answer to 'when to replace outlet installation' is that you should typically replace electrical outlets every 10-15 years or if they show signs of wear or damage. Outlets can become loose, crack, or wear down over time, which can pose a fire hazard or cause electrical issues. It's important to inspect your outlets regularly and replace them if you notice any problems.
Replacing outlets is a relatively straightforward DIY project, but it's important to take safety precautions and turn off power to the circuit before working. If you're not comfortable doing it yourself, it's best to hire a licensed electrician to ensure the work is done properly and safely.