Need help setting up a home network and Wi-Fi optimization

I'm looking for someone experienced in IT to help set up my home network. I recently moved into a new house and want to ensure my Wi-Fi coverage is strong throughout. The job includes configuring the router, setting up a secure network, and optimizing signal strength. Basic troubleshooting and advice on best devices would be appreciated. Ideally, you have experience with home networking and can explain things clearly.