Your Tarion Warranty Claim Was Denied in Ontario: What to Do Next

Getting a denial letter from Tarion after months of dealing with a defect in a new home is frustrating — especially when the problem is still sitting there unresolved. A denial isn't necessarily the end of the road. Ontario's new-home warranty system includes options after a claim is turned down, but using them well means understanding why claims get denied and moving within the right windows.

Why Tarion Claims Get Denied

Tarion administers Ontario's mandatory new-home warranty program, but that coverage isn't unlimited or automatic for every complaint a homeowner raises. Claims commonly run into trouble for reasons like these:

• The item isn't a covered defect. Tarion's warranty addresses defects in workmanship and materials as defined by its own construction performance standards — not every cosmetic issue, and not normal wear, settling, or maintenance items.
• The claim was submitted for the wrong warranty year, or outside that year's claim window. Tarion's coverage is structured in stages, and each stage has its own process and reporting period.
• The issue was already identified and addressed at an earlier inspection, such as the pre-delivery inspection, and the builder's response is considered to have satisfied the warranty obligation.
• The problem is attributed to something outside workmanship or materials — for example, homeowner alterations, lack of maintenance, or normal settling that falls within expected tolerances.
• Documentation gaps — insufficient evidence connecting the issue to a covered defect, or missing the reporting steps Tarion's process requires.

Understanding Your Warranty Year

Tarion's statutory coverage is commonly described in stages, often referred to as Year 1, Year 2, and Year 7 protection. Each stage covers different categories of items, and the later stage is narrower than people often assume.

As of mid-2026, Tarion's published maximum statutory warranty coverage is $400,000 for freehold homes under agreements signed on or after July 1, 2023, and $300,000 for condominium units — figures change, so verify the current maximum directly with Tarion before relying on it for your specific claim.

Knowing which year your claim falls under, and which category of defect you're describing, matters because a denial for a Year 1 issue and a denial tied to the Year 7 structural framework can turn on very different criteria.

Read the Denial Letter Carefully

A Tarion denial letter should tell you which specific items were denied (as opposed to a full denial of every item on your claim, which is less common than a partial denial), the stated reason for each denial, and what your next steps and deadlines are. Before deciding how to respond:

• Confirm exactly which items were denied versus approved — many claims include multiple issues, and outcomes often differ item by item.
• Note the specific reason given for each denial, since your response strategy differs depending on whether the issue is "not a covered defect" versus "insufficient evidence" versus "outside the reporting window."
• Identify any deadline stated in the letter for requesting further review or appealing — these windows can be tight, and missing one can end your options for that item.

Your Options After a Denial

1. Request a conciliation or further review through Tarion's own process, if your denial letter or Tarion's process indicates that step is available for your situation. This is often the fastest way to resolve a disagreement over the facts or the inspection findings.
2. Get an independent assessment. An inspector, engineer, or other qualified professional can document the defect and its cause in a way that directly responds to Tarion's stated reason for denial.
3. Appeal to the Licence Appeal Tribunal, which hears appeals of Tarion decisions in Ontario. There is a limited window to file an appeal after a denial — confirm the current deadline directly with Tarion or the Tribunal, since missing it can end your right to appeal that item.
4. Consider whether a separate claim against the builder exists outside the Tarion process. In some circumstances, an issue that Tarion's warranty program doesn't cover may still raise a separate question about the builder's obligations — this is worth a lawyer's assessment rather than assuming Tarion's decision is the final word on every avenue.

Building a Strong Appeal

• [ ] Collect the original claim, the denial letter, and every piece of correspondence with Tarion and the builder.
• [ ] Get independent, dated documentation of the defect — photos, an inspection report, or an engineer's opinion — tied specifically to Tarion's stated reason for denial.
• [ ] Identify the exact deadline in your denial letter and calendar it immediately.
• [ ] Organize your evidence by warranty year and defect category, since the applicable standard differs between them.
• [ ] Have a lawyer review the denial letter and your evidence before you file an appeal, so your submission directly addresses Tarion's stated reasoning rather than restating your original complaint.

Frequently asked questions