I’ve included 3 choices for internet. I’ve used Sentex for 23 years, they are great.
Natural gas in Waterloo is Enbridge. Here’s the link to sign up
Electricity is Enova
Taxes and water are the City of Waterloo
How to change address for Ontario Government documents
How to change address for Federal Government
You’ll need a mover, I highly recommend these guys. AMJ Campbell.
You’ll need to contact your insurance company before you move and get home insurance.
Let the bank, credit card company, other services you use, doctor, dentist, schools, employer know of your new address.
You’ll need to give 60 days notice if you are on a month to month tenancy.