Ontario.
Start with the context.

A practical local question.

For a condominium or leased premises, identify who may approve unit work, common-area access and shared-system assessment. Do not assume one approval covers all three.

Confirm the requirements.

Ask the qualified provider which requirements apply to the proposed activities, materials and property. Work methods and regulatory responsibilities should be confirmed for Ontario, rather than copied from a different jurisdiction.

City resources

Prepare the conversation.

Bring together the observed issue, property type, known affected areas, existing assessments and the contact authorised to approve the next step. A national website does not establish that a specialist is available for your city or requested date.