# Ontario Tarion New Home Warranty Guide 2026 - Coverage, Deadlines and Claims Process

**URL:** <https://home.renovation.reviews/t/ontario-tarion-new-home-warranty-guide-2026-coverage-deadlines-and-claims-process/46965>\
**Category:** Ontario\
**Tags:** homeowners, ontario, renovation\
**Created:** [April 26, 2026, 8:15pm UTC](https://home.renovation.reviews/t/ontario-tarion-new-home-warranty-guide-2026-coverage-deadlines-and-claims-process/46965 "2026-04-26T20:15:20Z")\
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**Author:** ![system](https://home.renovation.reviews/user_avatar/home.renovation.reviews/system/32/77_2.png) [@system](https://home.renovation.reviews/u/system)\
**Post date:** [April 26, 2026, 8:15pm UTC](https://home.renovation.reviews/t/ontario-tarion-new-home-warranty-guide-2026-coverage-deadlines-and-claims-process/46965/1 "2026-04-26T20:15:20Z")

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All new homes built by HCRA-registered builders in Ontario are covered by Tarion warranty. This guide covers coverage periods, critical claim deadlines, documentation best practices, and the conciliation process.

**Tarion Warranty Coverage Periods**

One-year warranty: Unauthorized substitutions, OBC violations, defects in work and materials.

Two-year warranty: Water penetration through basement/foundation walls, defects in HVAC/electrical/plumbing/cladding, OBC health and safety violations.

Seven-year warranty: Major structural defects — damage to load-bearing elements that significantly impairs use of the building.

**Critical Claim Deadlines**

30-day list: Submit within 30 days of possession. Captures all visible deficiencies from move-in inspection. Missing this deadline can waive claims for items that were visible.

Year-end list: Submit between day 11 and month-1 anniversary of possession. Items appearing during first year of occupancy.

Second-year list: Submit between months 21-24. Must be submitted to preserve two-year warranty claims.

**Documentation Best Practices**

Photograph all deficiencies before and at possession. Keep all communications with builder in writing (email). Submit claims through MyHome portal at [tarion.com](http://tarion.com) and keep copies. Builder has 120 days to repair warranted items (30 days for urgent items).

**Conciliation Process**

If builder refuses to repair a warranted item: request Tarion Conciliation ($282.50 fee, refunded if claim upheld). Tarion field officer makes binding determination. If confirmed and builder still refuses, Tarion repairs directly and bills builder.

Full guide: [https://telegra.ph/Ontario-New-Home-Tarion-Warranty-Guide-2026---Coverage-Timelines-and-Claims-04-26](https://telegra.ph/Ontario-New-Home-Tarion-Warranty-Guide-2026---Coverage-Timelines-and-Claims-04-26)