Our certified and experienced environmental consultants can help assess your whole property, or specific indoor areas that are to be demolished or renovated. We have the know how and experience to safely complete designated substances and hazardous materials surveys for small and large projects. We can also complete your designated substances and hazardous materials report in a timely manner that meets your important timelines.


Prior to beginning any demolition work in Ontario, workers must know what designated substances may be present within the building being demolished. Additionally, toxic substances must be removed from a building structure that is to be demolished, dismantled or moved. Therefore, we can help you complete a designated substances and hazardous materials survey that will not only protect workers, but also minimize your exposure to liabilities.


Has the Ministry of Labor placed a stop order on your renovation or demolition project? We can help get your project going again. Generally, we can conduct an assessment with sampling, and have final analysis results as well as a final DSR ready as fast as the next business day following the completion of a designated substance and hazardous materials survey. Please contact us for additional information and pricing.


The above Ontario law deals with defining what materials are considered designated substances.

They are as follows:

  • Acrylonitrile
  • Arsenic
  • Asbestos
  • Benzene
  • Coke oven emissions
  • Ethylene oxide
  • Isocyanates
  • Lead
  • Mercury
  • Silica
  • Vinyl chloride

Designated substances and hazardous materials are particularly of serious concern, especially when adequate controls are not in place to protect workers. They can cause cancers, strong allergic reactions, liver and lung problems, and effects on the nervous system.

This is why it is crucial to identify Designated Substances and Hazardous Materials materials that will be or are likely to be disturbed, handled, or removed as part of a project.

Why is it also important as an owner of a building to have a Hazardous Materials and Designated Substances Survey completed?

  • An owner is liable to the constructor as well as every contractor and subcontractor for loss or damages if a list was not provided or designated substances were not identified.
  • An owner can be fined under the Occupational Health and Safety Act.
  • The Ministry of Labour can issue a “stop work” order or the contractor may refuse to complete the work. This can cause delays and cost money.
  • Employers can put controls in place to protect workers.

For more information please call us at (613)366-5226.


Phone: 613-366-5226


Business Hours

Mon-Fri: 9:00 am to 5:00 pm

Saturdays: 9:00 am to 2:00 pm

Sundays: closed

  • OIES
    150 Elgin Street, 8th Floor
    Ottawa, ON, K2P 1L4

  • OIES
    2310 St. Laurent Blvd, Unit 216
    Ottawa, ON K1G 5H9


Our technicians are Post-Graduates Certified in Environmental Management & Assessments.