Ontario’s Consumer Protection Act requires the building renovator to draft and present you with a written contract in advance of any work to be completed.  At a minimum the contract requires the following:
The legal business name, address and telephone number of the building renovator.
Your name and address.
An accurate and sufficiently detailed description of the work to be completed.
The total price for the aforesaid work.
A timeline for the commencement and completion of the work.
The date the contract is entered into.
If the contract is entered into at your home, the contract is also supposed to set out your 10-day cancellation rights under the Consumer Protection Act.
In any event, you are supposed to be provided with a written copy of the contract that you can keep for your records.