The Holdback Clock That Ran Out Before the Call Came In

The situation

Heather runs a general contracting business that builds large custom homes across the Whitby area. In 2025 she took on her biggest project yet: a roughly $9,000,000 build for Piotr, an investment advisor, and Marek, a dentist who owns his own practice. The two were building a large custom home and had the capital to move quickly through the build without financing delays, which made the project attractive to Heather from the start.

Construction went well for the better part of a year. Heather's crews and subcontractors moved through the framing, mechanical, and finishing phases roughly on schedule, and Piotr and Marek paid progress draws as invoiced — minus the statutory holdback. Under Ontario's Construction Act, an owner must hold back 10% of the value of the work at every stage, and cannot release it until a set period after the contract is substantially performed or completed, provided no one has registered a lien against the property in that window. On a project this size, that holdback added up: roughly $900,000 sitting with Piotr and Marek, meant to protect Heather's subcontractors and suppliers if anything went wrong.

Substantial performance was certified, the home was substantially finished, and Heather expected the holdback period to run its course and the funds to be released. Instead, Piotr and Marek came back with a list of alleged deficiencies — issues with finishing work, some mechanical items, a handful of items Heather's team disputed outright — and declined to release any of the holdback until the list was resolved.

The problem

Heather tried to resolve the deficiency list directly with Piotr and Marek for several months. Some items she agreed to fix. Others she considered unreasonable or already addressed. The conversation dragged, emails went unanswered for weeks at a time, and the holdback sat untouched while Heather's business absorbed the cash flow strain of a $900,000 gap on a single project.

What Heather did not realize — because no one had explained it to her — was that her right to secure that holdback with a construction lien was not open-ended. Under the Construction Act, a contractor has a strict window after the last supply of services or materials on a project to register a claim for lien against the property, and a further strict window after that to perfect it by starting a court action. Miss either deadline, and the lien right is gone — permanently, not extendable by agreement or good faith negotiation.

The complication was that Heather's project had run in phases, and the framing and structural work — a significant early piece of the job — had wrapped up well before the finishing trades. Each phase of supply carries its own clock. By the time Heather called Treadstone, the lien preservation deadline tied to that early framing work had already passed. The clock on the more recent finishing work was still open, but a portion of the $900,000 holdback — the part tied to work completed months earlier — could no longer be secured by a lien at all. It could still, in principle, be pursued as an ordinary debt for breach of contract, but without the lien's built-in security against the property, a debt claim is only as good as the other side's ability and willingness to pay.

What we did

1. Mapped every phase of supply against its own deadline. The first task was reconstructing, phase by phase, when Heather's crews and subcontractors had last supplied services or materials on each part of the project. This showed exactly which portion of the $900,000 holdback was still within the lien preservation window and which had already lapsed — roughly $150,000 tied to the early framing phase was no longer securable by lien.
2. Registered a claim for lien immediately on the preserved portion. On the remaining roughly $750,000, there was no time to lose. A claim for lien was registered against the property right away, both to stop any further clock from running and to give Heather real leverage in the deficiency dispute — an unsecured negotiation and a secured one look very different to the other side.
3. Sorted the deficiency list into what was owed and what was defensible. Not every item on Piotr and Marek's list held up. Our team worked with Heather to separate genuine, documented deficiencies from items that had already been corrected or that fell outside the scope of the original contract, building a record that would hold up if the dispute went further.
4. Negotiated a resolution on the secured holdback. With the lien registered and the deficiency claims sorted, we opened settlement discussions with Piotr and Marek's lawyer. After accounting for roughly $100,000 in deficiencies both sides agreed were legitimate, the parties settled the secured portion for about $650,000 — released once the lien was discharged as part of the settlement.
5. Pursued the lapsed portion as a separate debt claim. The roughly $150,000 tied to the early framing work, no longer securable by lien, was pursued directly as a claim for money owed under the contract. Without lien security, this piece carried more risk and less leverage, and it settled for about $50,000 — roughly a third of its value.

The outcome

Heather recovered a total of about $700,000 of the original $900,000 holdback: $650,000 from the secured lien claim and $50,000 from the separate debt claim on the lapsed portion. The $200,000 gap broke down cleanly — $100,000 in deficiencies that turned out to be legitimate, and $100,000 lost because part of her lien rights had already expired by the time she sought legal help, of which only a third was recoverable through ordinary debt collection.

The registered lien mattered more than the dollar figures suggest. On the $750,000 that was still within the deadline, having a lien in place gave Heather real security and turned a stalled, informal dispute into a negotiation the other side had a genuine incentive to resolve. Once Piotr and Marek's lawyer understood that the lien would remain registered against the property until resolved, and that Heather was prepared to start the court action needed to perfect it, the pace of the deficiency discussion changed noticeably. On the $150,000 that had already lapsed, there was no such leverage — just a debt claim against two individuals who, however creditworthy, had no legal obligation to prioritize it, and it showed in the settlement value.

Heather was candid afterward that the outcome, while workable for her business, was avoidable. Had she called a lawyer when the deficiency list first arrived rather than several months later, every phase of the project would still have been within its lien window, and the full $900,000 — minus whatever genuine deficiencies existed — would likely have been recoverable on secured footing. The lesson for her business going forward was straightforward: track lien deadlines by phase of supply from the day work starts, not from the day a dispute begins. She has since built a simple internal calendar that flags the preservation deadline for every phase of every project, so a holdback dispute never again quietly runs past the point where it can be secured.

What you can learn from this