• Resources_HERO


What Building Officials need to know about Tarion

By law, all new homes in Ontario built by a licenced vendor or builder comes with a statutory warranty under the Ontario New Home Warranties Plan Act (ONHWPA).

This statutory warranty protection follows the home and is valid for seven years from the original date of possession, regardless of who owns the home. 

Tarion ensures new home buyers receive the statutory warranty coverage they are entitled to under the Act.   

Every day, Tarion helps to build confidence in Ontario’s new home building industry by backstopping the new home warranty protection provided to homeowners. This section contains resources that may be helpful to you, your building department, and your local association.

If you have questions about Tarion, the warranty program or would like us to speak to your building department or local chapter, please contact us at stakeholderrelations@tarion.com.

General Resources for Municipal Building Departments

To learn about Tarion and ensure homebuyers and homeowners understand the warranty program, these resources provide the important information you need.

Hard copies of any online publications are available and can be ordered by reaching out to stakeholderrelations@tarion.com

Warranty Coverage for New Homes in Ontario 

The two versions of this e-brochure outline the warranty coverage that comes with new homes and condominiums in Ontario as well as the roles and responsibilities of homeowners, builders and Tarion with regard to the warranty. 

Click here for the freehold/contract homes edition

Click here for the condominium edition

Quick Tip: Feel free to share this with local new homeowners. 

Types of Homes Covered and Not Covered

The new home warranty covers the majority of homes built in Ontario but there are circumstances where certain types of homes may not be eligible for warranty coverage. These resource pages provide information on what types of homes are covered and not covered, and help clarify the limitations of the warranty coverage.

Quick Tip: If you have questions as to whether a home should be enrolled in the warranty program, please send an email to ismyhomecovered@tarion.com

Online Video Library

Our online video library provides access to a growing number of short, informative videos on a wide range of warranty topics, including illegal building and radon. 

Quick Tip: The share icon in the top right corner of each video, gives you the YouTube link. Feel free to copy this link and share it with your local homeowners and builders.

The Construction Performance Guidelines

The Construction Performance Guidelines (CPG) for Freehold Homes and Condominium Units and for Common Elements provide objective and uniform criteria that set out the minimum performance required in the construction of new homes in Ontario. It also provides advance guidance as to how Tarion will decide disputes between homeowners and builders about defects in work or materials.

Quick Tip: Tarion is conducting an ongoing review of the CPG for Freehold Homes and Condominium Units. If you have feedback or would like to share an idea on how the CPG can be improved, please submit them here.


Radon and The New Home Warranty Program

Radon is an invisible, odourless, naturally occurring gas found in soil. In high concentrations, it may pose health risks. This resource page contains helpful information about radon and warranty coverage. It also explains how to test for radon and how to make a warranty claim for excessive radon.

Quick Tip: When testing for radon, the test must be certified through the Canadian National Radon Proficiency Program in order to be eligible for warranty coverage.

The Home Construction Regulatory Authority: Illegal Building and the OBD

Effective February 1, 2021, the Home Construction Regulatory Authority (the HCRA) has been designated as Ontario’s regulator of new home builders and vendors under the New Home Construction Licensing Act 2017 (NHCLA).  

The HCRA will be responsible for: 

•    Licensing new home builders and vendors; 
•    Enforcing high professional standards for competence and conduct; 
•    Investigating illegal building practices; and, 
•    Administering the Ontario Builder Directory. 

You can find information on the HCRA’s activities and the Ontario Builder Directory by visiting: www.hcraontario.ca.