Mechanic's Lien
Learn about mechanic’s liens in Canadian real estate — what they are, how they work, and how they protect contractors and suppliers.

August 08, 2025
What is a Mechanic's Lien?
A mechanic’s lien is a legal claim by a contractor, subcontractor, or supplier for unpaid work or materials provided for a property.
Why Mechanic's Liens Matter in Real Estate
In Canadian construction and real estate, mechanic’s liens secure payment for work performed and can delay property sales or financing.
Key points:
- Filed in the land registry by unpaid construction professionals
- Creates an encumbrance on property title
- Must be resolved before transferring clear title
Understanding mechanic’s liens helps property owners, buyers, and lenders manage financial risk.
Example of a Mechanic's Lien in Action
The contractor filed a mechanic’s lien after not being paid for renovations to the building.
Key Takeaways
- Legal claim for unpaid construction work or materials
- Filed in the land registry and clouds title
- Must be cleared before property sale or refinancing
- Protects contractors and suppliers from non-payment
- Requires owners to verify payments to avoid liens
Related Terms
- Lien
- Holdback (Construction Financing)
- Encumbrance
- Title Insurance
- Draw Schedule


A rendering of the first two buildings, 119 and 151 Bruce Street, which will total 500 homes. (Courtesy of Medallion Corporation)
A rendering of a proposed park that would add significant green space to downtown Oshawa. (Courtesy of Medallion Corporation)






A drawing of ReHousing Co-Founder Michael Piper's triplex in Toronto's east end/ReHousing
Some of the housing configurations available through the design catalogue/ReHousing 





Renderings of the tower proposed for 1394 Robson Street in Vancouver. (Arcadis, Asia Standard Americas)
Renderings of the tower proposed for 1394 Robson Street in Vancouver. (Arcadis, Asia Standard Americas)
Source: CREA Stats XML via HomiesAI.com AI Harness for Realtors
Source: CREA Stats XML via 

Annacis Island
The Vue at 2830 Peatt Road in Langford, British Columbia. (Boardwalk REIT)