The answer to 'when to replace outlet' is that you should replace an electrical outlet when it shows signs of wear, damage, or becomes outdated. Outlets typically last 10-20 years, but can fail sooner if they are heavily used or exposed to moisture. Signs it's time to replace an outlet include cracks, discoloration, loose fit, or if the outlet no longer properly holds plugs. Replacing old or damaged outlets is important for safety and to ensure reliable power to your home's devices.
Homeowners should also consider replacing outlets when upgrading or remodeling their home's electrical system. Newer outlets with safety features like tamper-resistant shutters and ground fault circuit interrupters (GFCIs) can provide better protection against electrical shocks and fires.