I’m planning to install a washroom exhaust fan and would like some advice from homeowners who have had one installed professionally.

The main goal is to improve ventilation and help manage moisture and odors in the bathroom. I’m trying to understand what factors should be considered before installation, including the fan location, electrical connection, ventilation route, and switch setup.

For anyone who has recently installed a bathroom exhaust fan, did you hire an electrician or handle any part of the installation yourself? What should I ask the contractor before getting started?

Any recommendations or practical tips would be appreciated.