Can a handyman replace a bathroom exhaust fan?
Yes. A handyman can replace a bath fan when the wiring and the duct already exist. The old fan comes out, the new one goes into the same opening and connects to the same switch, and the duct is checked and reconnected.
Bath fans wear out from steam and dust. Bearings dry out and the motor gets loud, or the blades load up with dust and move less air. A like-for-like swap is the simplest version: same opening, same wiring, same duct. The work starts with the power off at the breaker. The old fan is pulled from below or, where there is attic access, from above. The new fan's housing is chosen to match the opening, which is why a photo of the grille and a measurement help. A fan with a light or a night light takes extra wiring, and a fan on a shared switch with the light may need the wires sorted so both still work.