Tarion’s process gives a builder a fixed window — a 120-day initial repair period triggered by the homeowner’s form — and the work that decides whether you use it well is front-loaded: reading the claim properly, asking the clarifying question early, and scheduling the trades. Software shortens the reading, the triage and the correspondence. It does not decide what the warranty covers.
Key takeaways
Warranty administration is where a small builder’s margin quietly goes. The claims themselves are rarely the problem; the problem is fifty items arriving as free text across four homes, each needing to be read, understood, assigned to a trade, scheduled, and answered inside a window that started without you doing anything.
Tarion states that the builder’s warranty is divided into 1, 2 and 7 year periods, and that to be eligible for Tarion’s assistance a homeowner must submit the relevant form within the relevant timeframe. The first-year forms run on dates counted from possession: the Initial Form can have items added from one day after possession and is automatically submitted on day 41; the Mid-Year Form accepts items from the 42nd day and is automatically submitted on day 183; the Year-End Form accepts items from day 183 and is automatically submitted on day 365, with a 10-day grace period added for items missed before the deadline, manual submission during the grace period, and written evidence required that the items were reported to the builder within the one-year warranty period. A Second Year Form may be submitted at any time during the second year, as many times as necessary. A Major Structural Defect Form may be submitted any time after the second year but no later than seven years from possession.
Then the repair clock starts. Tarion states that when a homeowner submits a warranty form, it triggers a 120-day initial builder repair period during which the builder should repair or otherwise resolve items on the form that are covered by the warranty, that repairs must be scheduled during business hours at a mutually convenient time agreed in advance, and that certain areas and situations demand longer or shorter timeframes — exterior work, emergencies, and Major Structural Defect claims, to which the 120-day period does not apply. If items are unresolved at the end of the period, the homeowner may contact Tarion to request a conciliation.
Tarion’s guide for builders is unusually concrete about the review step, and it is the step most often skipped. It directs the builder to contact the homeowner for clarification and ask for details about the defects, giving the example that where a claim refers to squeaks “throughout” the flooring, the builder should ask exactly where the squeaks are. It directs the builder to use the Ontario Building Code and Tarion’s Construction Performance Guidelines as primary resources when determining whether an item is covered; to investigate the cause where an item points to a deeper issue, using specialised trades or consultants if necessary; to communicate the intent to resolve or not resolve each item; and, where an item is not covered, to provide an explanation and be prepared to support it.
Resolution takes one of two forms — repairing, or offering cash compensation that satisfies the warranty obligation, in each case including where the homeowner declines. Tarion also offers Early Intervention, which a builder can request at any time before or during the regular claims process, and refers builders to Registrar Bulletin 1 for the process in full detail.
Separately from the warranty, the right to build and sell is licensed. The Home Construction Regulatory Authority is the licensing body for Ontario builders and vendors, and publishes its expectations of licensed builders on its own site. Warranty performance and licence standing are different systems with different consequences, and it is worth keeping that distinction visible internally.
Where the time actually goes
Reading. Forty free-text items in a homeowner’s words, no two describing the same defect the same way.
Sorting. Which trade, which unit, which room, which are duplicates of an item already on an earlier form.
Answering. A defensible written explanation for every item you are not repairing.
Chasing. Access appointments, trade attendance, and proof that the item was resolved before the deadline.
Triage. Free-text claim items are a classification problem: assign each to a trade, a location and a probable warranty period, group near-duplicates, and separate items that are plainly maintenance from items that need an inspection. A tradesperson reviewing a sorted list works several times faster than one reading raw text, and the sort is reviewable — a wrong assignment is obvious at a glance.
Calendaring. Every date in the process derives from the possession date. Deriving them automatically per home — form windows, the 120-day repair deadline, exceptions — removes the most expensive failure mode, which is a deadline missed because nobody counted.
Drafting correspondence. The acknowledgement, the clarifying question, the appointment request, and the first draft of a not-covered explanation with the relevant Construction Performance Guideline reference attached for the reviewer to check. Tarion expects that explanation to be supportable, which means a person must confirm the reference actually says what the draft claims.
Evidence capture. Photographs before and after, tied to the item and dated. This is ordinary field-capture work, and it is what makes a resolution defensible at conciliation.
Coverage. Whether an item falls inside the one, two or seven year warranty, whether it meets the Construction Performance Guidelines, and whether a crack is cosmetic or structural are judgments a builder is accountable for and must be prepared to defend with supporting information. A model can retrieve the relevant guideline and summarise it; it cannot apply it to a house it has not seen, and a generated coverage denial is a liability rather than a time saving.
The same goes for tone. Warranty correspondence is read by a homeowner who is frustrated and may later be read by a conciliator. Drafting is a reasonable use; sending unread is not.
The following is illustrative — a composite of how the workflow is usually assembled, not a measured result.
A builder closing forty homes a year receives Year-End Forms in clusters. Each form is ingested and its items classified by trade and room, with likely duplicates of Initial Form items flagged. Across eleven homes, thirty-one drywall items resolve into a single drywall visit per home rather than thirty-one appointments, and nine items are identified as needing an inspection before anyone commits to a position.
The site manager reviews the sort in twenty minutes, moves four items between trades, and marks two as requiring a consultant. Clarifying questions go out the same day — including the “where exactly are the squeaks” question Tarion itself recommends — and the 120-day deadlines sit on the calendar per home. The gain is not that a machine handled warranty. It is that the review step happened in week one instead of week nine.
You can ask for clarification, and Tarion expects you to. What you cannot do is treat clarification as a delaying tactic: the repair period runs from submission regardless, and an unresolved item at the end of it is an unresolved item.
Communicate the position with an explanation and be prepared to support it, which is what Tarion’s builder guidance requires. If it cannot be resolved, Tarion may assist through an Investigative Inspection, and the homeowner may request a conciliation at which Tarion assesses whether the items are covered. Where the dispute becomes a legal one, our sister firm covers what happens when a contractor will not fix warranty deficiencies and what the Tarion warranty covers and for how long.
Not directly, but deficiency lists and holdback set-off interact, and both are settled in the same period as final billing. See assembling a progress draw package for how the payment side is documented.
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