The Ontario Tarion Warranty Program: What New Home Buyers and Builders Should Know

November 24, 2025

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Introduction

The Tarion Warranty Corporation administers new home warranties in Ontario on behalf of buyers of new homes and establishes legal obligations for builders and vendors under the Ontario New Home Warranties Plan Act. Compliance is mandatory — failure to comply with the Act and Tarion rules can result in regulatory penalties, licence suspension, loss of warranty eligibility, homeowner claims, and litigation. Builders and vendors operating in Ontario must understand their duties, deadlines, and risk exposure. This article provides a basic summary of what builders need to know.

1. What is the Tarion Warranty Program?

The Tarion Warranty Corporation administers Ontario’s new home warranty protections for buyers of new homes, covering defects, deposits, delayed closing compensation and major structural issues.

Official resource:
https://www.tarion.com/homeowners/the-new-home-warranty

In 2021, the Home Construction Regulatory Authority (HCRA) was introduced to regulate builder licensing and compliance:
https://www.hcraontario.ca/

2. Licensing Requirements

Before offering, selling or building a new home in Ontario, a builder/vendor must:

New Homes cannot be sold or constructed until enrolment is approved.

3. Key Builder Obligations

a) Enrolment & Documentation

Tarion requires builders to submit enrolment documents, including the purchaser's contact information, within 30 days of signing. Required documentation includes:

  • Tarion Addendum

  • Warranty Information Sheet

  • Certificate of Completion and Possession (CCP)

b) Pre-Delivery Inspection (PDI)


A Pre-Delivery Inspection is mandatory before possession and establishes the baseline home condition.

More information:
https://www.tarion.com/homeowners/pre-delivery-inspections

c) Warranty Coverage

Time Period

Warranty Coverage

1-Year

Workmanship & materials

2-Year

Electrical, plumbing, heating systems, and water penetration

7-Year

Major structural defects

Coverage details:
https://www.tarion.com/homeowners/warranty-coverage-overview

4. Common Builder Risks & Pitfalls

Risk

Consequence

Failure to enroll a home

Liability for full repair costs + enforcement penalties

Missed deadlines (PDI, claims response, delayed closing rules)

Compensation exposure + Tarion intervention

Poor documentation

Legal vulnerability in disputes

Misleading marketing or contract terms

Legal action for misrepresentation

5. Regulatory Changes to Watch

Upcoming requirement: Purchaser Notice to Tarion

Effective July 1, 2025, purchasers of new freehold homes, including homes on parcels of tied land, are required to notify Tarion of their purchase and particulars of the transaction within 45 days of signing an agreement of purchase and sale.

6. Role of Legal Counsel

A law firm supporting Ontario home builders should provide:

  • APS and construction contract drafting and review

  • Tarion compliance audits

  • Warranty claim dispute support

  • Regulatory change updates

  • Risk-management systems and internal documentation controls

Proper legal advice reduces costly warranty claims and protects the builder's reputation.

Conclusion

The Ontario Tarion Warranty Program is a homebuyer protection tool that includes a strict legal compliance system. Builders must understand their obligations, maintain accurate documentation, communicate transparently with purchasers, and respond to claims efficiently.

Legal counsel with Tarion experience can assist in preventing regulatory penalties, litigation, and financial loss.

Please note these materials have been prepared for general information purposes only and do not constitute legal advice. Readers are advised to seek legal advice by contacting Frank Feldman regarding any specific legal issues.

All content is provided for general information purposes only and does not constitute legal advice. No communication shall result in a retain of Frank Feldman Law unless confirmed in writing.