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№ 128 Case Study — Litigation

Cracked Foundations: Winning a Cottage Build Deficiency Claim

A custom cottage near Huntsville developed structural problems within a year of completion. Expert reports turned a builder's denials into a settlement that covered nearly all of the repair cost.

Litigation6 min readHuntsville, OntarioRenovation disputes
All Litigation case studies
ClientEitan and Nikhil, surgeons who built a custom cottage near Huntsville
The issueStructural deficiencies in a $1.45 million custom build, denied by the builder
ServiceConstruction litigation and deficiency claim
ResolutionSettled at mediation for roughly $780,000, close to the full claimed loss

The situation

Eitan and Nikhil had spent three years planning a four-season cottage on a lake near Huntsville, meant to be a retreat from demanding schedules as surgeons at a Toronto hospital. Eitan also ran a small private medical clinic on the side, and the couple used a mix of savings and a line of credit secured against the clinic to fund the build. The construction contract, signed with a custom home building company run by a builder named Deepa, came to roughly $1,450,000 for a timber-frame home with a walkout basement, in-floor heating, and a stone foundation designed to sit on a sloped, rocky lot.

Construction finished in the spring, and the couple moved furniture in over the following months, using the cottage on weekends through the summer. By the following winter, cracks had appeared in the basement slab, and Nikhil noticed water pooling against the foundation wall on the lake side after a heavy rain. A door frame on the main floor had begun to bind, no longer closing flush. None of this had been visible during the walkthrough before final payment, when the finishes looked complete and the basement floor looked level.

What the inspection found

The couple hired an independent structural engineer to assess the cracking before raising it with the builder. The engineer's report was more serious than either of them expected. The foundation had been poured without the drainage and grading detailed in the approved plans, so water was collecting against the foundation wall instead of being carried away from it. Over a freeze-thaw cycle, that trapped water had pushed against the wall and contributed to the slab cracking. Separately, a structural beam supporting the main floor had been installed a size smaller than the engineered drawings called for, which the report linked to the binding door frame and a slight downward deflection measured across the room above it.

The engineer's estimate to fix both problems, including excavating around the foundation to install proper drainage, repouring sections of the slab, and replacing the undersized beam with the correct one, came to roughly $850,000. That figure reflected the scale of the work: reaching the foundation on a rocky, sloped lot meant significant excavation, and the beam replacement required temporarily supporting the floor above it while the work was done.

The couple brought the report to the builder directly, expecting a straightforward conversation about a fix under the standard warranty terms in the contract. Instead, the builder disputed the findings, argued the cracking was ordinary settling that any new build experiences, and offered a token repair covering only the visible slab cracks, worth a small fraction of the engineer's estimate. With a fully funded family retreat now unusable through a second winter and a construction line of credit still being paid down, the couple needed a lawyer who could turn expert findings into leverage rather than simply file a claim and hope.

What we did

  1. Reviewed the contract and the holdback position. Ontario's Construction Act requires owners to retain a holdback percentage of the contract price until the standard lien period expires, precisely so that deficiency claims like this one have funds to draw against. We confirmed how much holdback remained available and how it interacted with the couple's claim, since that amount would factor into any negotiated resolution.
  2. Sent a formal deficiency notice and demand. Rather than filing suit immediately, we set out the engineer's findings in detail, attached the report, and gave the builder a defined window to respond with a credible remediation plan or a serious settlement offer. This step matters even when a dispute looks headed for court: it creates a clear record that the builder was given a fair opportunity to fix its own work before litigation began.
  3. Commenced a civil claim in the Superior Court. When the builder's response fell well short of the engineer's estimate, we issued a claim for breach of contract and negligent construction, seeking the cost of repair plus related losses, including the cost of the couple's independent engineering assessment.
  4. Retained a second expert for litigation support. Because the builder's own engineer produced a competing report minimizing the deficiencies, we brought in a second structural engineer to review both reports, inspect the site again, and prepare an opinion capable of withstanding cross-examination. Having two aligned expert opinions, rather than relying on the original inspection alone, strengthened the claim considerably going into examinations for discovery.
  5. Used discovery to narrow the builder's defence. Examinations for discovery are sworn, out-of-court interviews where each side's representative answers questions under oath before trial. Questioning the builder's own site supervisor produced admissions that the beam substitution had been made without re-checking the engineered drawings, undercutting the builder's later claim that the change was an acceptable equivalent.
  6. Negotiated at mediation from a position of strength. With two supporting expert reports and a damaging discovery transcript on the table, we entered mediation, a structured settlement negotiation with a neutral third party, well ahead of the trial date. The builder's litigation risk had grown substantially by that point, which shifted the settlement conversation from a fraction of the claim to a number close to the full amount.

The outcome

The case settled at mediation for roughly $780,000, plus reimbursement of the couple's original engineering report. That figure covered nearly all of the $850,000 repair estimate, with the shortfall reflecting a modest discount both sides accepted to avoid the cost, delay, and uncertainty of a trial that was still many months away. The settlement also included a schedule for the builder to complete the excavation and drainage work directly, with the couple retaining the right to hire an independent contractor at the builder's expense if the work fell behind or failed a follow-up inspection by their engineer.

The full dispute, from the first cracks noticed that winter to the signed settlement, took a little over two years. That is a realistic timeline for a construction claim of this size: it included the initial inspection and demand period, roughly a year of pleadings and expert reports before examinations for discovery could be scheduled, and several more months before a mediation date was available. Eitan and Nikhil kept using the cottage through most of that period, working around the affected areas, while the claim moved through the court system in the background.

By the following summer, the drainage and beam work were complete, verified by the couple's own engineer before the final settlement funds were released. The clinic line of credit, which had briefly carried the weight of both the original build cost and the threat of an uncovered repair bill, was paid down using the settlement proceeds.

What made the difference in this case was the gap between the two competing narratives about the cracking, and the couple's willingness to invest in expert evidence early rather than accepting the builder's first explanation. A single inspection report can be dismissed as one opinion against another. Two independently retained structural engineers, backed by a discovery transcript showing the builder's own supervisor had deviated from the approved drawings, left very little room for the builder to argue at trial that the damage was ordinary settling. That evidentiary weight is usually what converts a stalled dispute into a fair settlement, without ever needing a judge to decide the matter.

What you can learn from this

  • Get an independent expert opinion before confronting a builder about deficiencies. A builder's own assessment of its own work carries an obvious conflict, and a documented third-party report is the foundation of any later claim.
  • Know your holdback position early. Ontario's Construction Act requires a holdback to be retained during the lien period specifically to fund deficiency repairs, and understanding what remains available shapes your negotiating strategy.
  • A formal demand letter before litigation is not a formality — it creates a record that the builder had a genuine chance to fix its own mistakes, which matters if the dispute later goes to court.
  • Competing expert reports are common in construction disputes. Retaining your own second opinion, rather than relying on a single inspection, protects your claim when the other side's expert pushes back.
  • Mediation works best once your case is strong, not before. Entering settlement talks after discovery has exposed weaknesses in the other side's position produces far better outcomes than negotiating too early.
This case study is entirely fictional. It does not describe any real client, file, or matter handled by Treadstone Law, and it is not a real file with details changed. All names, people, properties, businesses, dollar amounts, dates, and events are invented, and any resemblance to a real person, business, or situation is coincidental. Fictional scenarios like this one illustrate the kinds of legal issues people in Ontario commonly face and how a lawyer can help. They are general information, not legal advice — no two matters unfold the same way, and nothing here predicts the outcome of any real case. Reading a case study does not create a lawyer-client relationship. If you are facing something similar, speak with a lawyer about your specific circumstances.

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