Louis Jones Construction Ltd. v. Rocque: Transition Provisions, Multiple Improvements, and Last Supply Under the Construction Act
The decision in Louis Jones Construction Ltd. v. Rocque (2026 ONSC 3159) addresses two issues that continue to generate uncertainty under Ontario’s Construction Act: (1) how to determine the scope of an “improvement” for the purposes of the transition provisions of the Construction Act; and (2) what constitutes the “last supply of services or materials” for lien preservation.
Both issues go directly to a recurring practical question for practitioners and contractors: when does the lien clock start to run and which lien regime applies?
Facts
The case arises from renovation and reconstruction work to a cottage property owned by Roxanne Rocque. In early 2017, she retained her nephew, Jonathan Rocque, operating as J‑Rock Construction, to perform renovation work.
Following flooding in May 2017, the project evolved. What began as a renovation became a more substantial undertaking involving raising the cottage and constructing a new foundation. The work proceeded in stages as the scope developed.
Two contractual relationships framed the dispute.
The first was between the owner and J‑Rock Construction for the overall project. That arrangement pre‑dated July 1, 2018, the key date for the transition from the Construction Lien Act to the current Construction Act.
The second arose in the fall of 2018, when J‑Rock Construction retained Louis Jones Construction Ltd. to carry out the concrete and foundation work. That agreement was oral and on a time‑and‑materials basis. There was a dispute as to whether a cost cap applied, but it was not disputed that the plaintiff’s scope was confined to the foundation work.
The plaintiff completed its work and issued invoices. Certain materials and equipment remained on site after the work was substantially complete. The plaintiff subsequently registered construction liens.
The defendants challenged the liens as out of time. This raised two familiar questions under Ontario construction lien law:
- Was this work part of the same “improvement” as earlier work, for the purposes of the transition provisions?
- Did leaving materials or equipment on site extend the lien preservation period?
Transition provisions and the definition of “improvement”
The applicable lien regime depended on s. 87.3 of the Construction Act. If the work formed part of the same “improvement” as the earlier project, the pre‑July 1, 2018 regime—including the 45‑day lien preservation period—would apply.
While the Court ultimately determined that the 45-day lien preservation period applied regardless of whether there was one improvement or two, the Court’s analysis of the issue is notable.
Construction projects are often treated as a single improvement for lien purposes. This decision makes clear that the analysis is more nuanced. The question is not simply how the project is described in general terms, but whether, as a matter of statutory interpretation, the work forms part of the same improvement.
Importantly, the Court confirmed that there can be multiple improvements at the same property. Sequential or related work will not necessarily be treated as a single improvement, even where it forms part of a broader redevelopment of the property.
On the facts, however, the Court concluded that there were two distinct contracts: the first concerned the initial renovations and the second was for repairs following the 2017 flood, which involved different work, including raising the cottage and laying a new foundation.
The decision refines the analysis by emphasizing that the “improvement” inquiry is a legal one. It may, in some cases, divide what appears to be a single project into multiple improvements.
Last supply of services or materials
The second issue was whether the plaintiff had preserved its lien within the applicable time period. That turned on identifying the last supply of services or materials.
The lien claimant argued that the lien period was extended because materials and equipment remained on site after the work was otherwise complete.
The Court rejected that argument. In doing so, it addressed a common question in construction lien practice: does leaving materials or equipment on site extend the lien period?
The answer, on these facts, was no. The materials left on site were not requested by the general contractor, were not required by the contract, and were not material to the completion of the work.
As a result, they did not form part of the plaintiff’s “supply” for the purposes of the Construction Act. The lien period was not extended by their presence.
The last supply was tied to the completion of the contracted foundation work, not to the subsequent removal—or non-removal—of incidental materials or equipment.
Key Takeaways
Ultimately, Louis Jones Construction Ltd. v. Rocque is a useful reminder that construction lien rights in Ontario are highly technical and intensely fact‑driven. Seemingly minor details can determine both the applicable lien regime and whether a lien is preserved in time. Where payment issues arise, delay can be costly. Early legal advice is often critical to identifying the correct lien period, preserving rights, and avoiding missteps that cannot be remedied after the fact.