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ARTICLE · 03 JUNE 2026

Recent Amendments To The Construction Act: A Guide For Design Professionals And Their Insurers

Singleton Urquhart Reynolds Vogel LLP
Singleton Urquhart Reynolds Vogel LLP
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Singleton Urquhart Reynolds Vogel LLP

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The Construction Act (the “Act”) governs Ontario’s construction industry, establishing the framework for key industry mechanisms to regulate cash flow, and prescribe alternative dispute resolution on construction projects throughout the Province. Originally enacted as the Construction Lien Act in 1983, the statute has been subject to significant reform in response to evolving industry practices and concerns voiced from stakeholders.

CanadaReal Estate and Construction
Jennifer Roberts
Jennifer Roberts
Eric Lee
Eric Lee

The Construction Act (the “Act”) governs Ontario’s construction industry, establishing the framework for key industry mechanisms to regulate cash flow, and prescribe alternative dispute resolution on construction projects throughout the Province.  Originally enacted as the Construction Lien Act1 in 1983, the statute has been subject to significant reform in response to evolving industry practices and concerns voiced from stakeholders.  In 2017, Bill 142 first introduced sweeping amendments and formally renamed the statute the Construction Act, with the amendments coming into force as of July 1, 2018.2 More recently, further amendments were introduced through Bill 60 and 216, now in force as of January 1, 2026.  

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