Check that the report covers the proposed work
Ontario’s guidance describes examinations and reports for materials likely to be disturbed. Give the assessor a clear account of the rooms, layers and building systems involved. An inspection for a different purpose may not answer the demolition questions.
Read the limitations with the results
Look for material locations, sampling information, areas not accessed and any assumptions about untested materials. Ask the assessor what those limitations mean for the work. Do not interpret one negative result as a statement about the whole building.
Pass the findings to the people planning removal
Make the report available before scope and sequencing are finalised. Where affected material requires specialist handling, identify the appropriate qualified parties and the required conditions for subsequent work. Do not disturb suspect materials to investigate them yourself.
Bring these details to the conversation
Keep these items together so the people assessing the work are looking at the same scope.
- The current proposed disturbance
- Material locations and report limitations
- Untested or inaccessible areas
- The assessor’s recommendations for planning
Official information
Check the applicable requirements for your property and proposed work with the responsible authority or qualified professional.
Source references reviewed October 5, 2026.