Canadian homeowners undertaking renovations face a hidden risk: if your contractor doesn't pay their subcontractors or suppliers, those parties can file a construction lien against your home — even if you paid the contractor in full. Every province has construction lien legislation (e.g. Ontario's Construction Act, Alberta's Prompt Payment and Construction Lien Act) that requires owners to hold back a percentage of each payment to protect against this. Before you sign a renovation contract, understand the holdback rules in your province and the contractor's obligations to deliver statutory declarations.
What is a Lien Protection?
A home renovation contract is a construction services agreement between an owner and a contractor for improvements to real property. It is governed by provincial construction lien legislation, which imposes mandatory holdback obligations (typically 10% of each payment) and creates statutory trust protections for subcontractors and suppliers.
Red flags to watch for
Holdbacks are mandatory under provincial lien statutes (e.g. Ontario Construction Act s 22) — contractors cannot contract them away. Owners who release holdback early face direct exposure to subcontractor liens.
Without contractor declarations that all subs and suppliers are paid, owners cannot safely release funds.
Many provinces require licensing of residential builders or new home warranty enrollment. Unlicensed contractors cannot enforce lien or contract claims.
Large upfront deposits are a consumer protection red flag — provincial consumer protection acts (e.g. Ontario CPA) limit advance payments for certain direct agreements.
Open-ended billing creates disputes and allows contractors to overdraw relative to work completed.
The prime contractor is responsible for the overall work. Disclaimers are generally unenforceable.
Your legal rights
Each province has construction lien legislation protecting owners and subcontractors. Ontario: Construction Act (mandatory 10% holdback, prompt payment adjudication). Alberta: Prompt Payment and Construction Lien Act. BC: Builders Lien Act (10% holdback). Quebec: Civil Code legal hypothec of construction. These statutes create trust obligations, holdback requirements, and dispute adjudication. Provincial consumer protection laws (e.g. Ontario CPA, BC Business Practices and Consumer Protection Act) provide additional rights for residential owners.
Questions to ask before you sign
- 1What is the statutory holdback percentage in this province, and how will it be held?
- 2Will you provide statutory declarations that subs and suppliers are paid before each draw?
- 3Are you licensed, insured and (where applicable) enrolled with the new home warranty program?
- 4What happens if a subcontractor files a lien on my property?
- 5What is the progress payment schedule tied to, and who certifies completion of milestones?
- 6What is the procedure for change orders and pricing?
Disclaimer: This guide is for educational purposes only and does not constitute legal advice. Contract law varies by jurisdiction and individual circumstances. Always consult a qualified legal professional before making decisions based on this information.