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About the Ontario New Home Warranty Program

Tarion Warranty Corporation is the new name for the Ontario New Home Warranty Program. Our new name is just one of the changes we’ve made to make your new home warranty protection and service better than ever. Although our name has changed, we’re the same company that has been protecting new home buyers in Ontario for the past 27 years.

Tarion Warranty Corporation is responsible for administering the Ontario New Home Warranties Plan Act, which outlines the warranty protection that new home and condominium builders must provide, by law, to their customers


The primary purpose of Tarion is to ensure that builders abide by this legislation, and to step in to protect consumers when builders fail to fulfill their warranty obligations. Over the years, Tarion has paid out over $190 million in claims from its guarantee fund.

Financed entirely by builder registration, renewal and home enrolment fees, Tarion receives no government funding and has guaranteed warranty protection for well over 1.2 million new homes.

The Role of Tarion


As the regulator of Ontario’s new home building industry, Tarion registers new home builders and vendors, enrols new homes for warranty coverage, investigates illegal building practices, resolves warranty disputes between builders/vendors and homeowners, and promotes high standards of construction among Ontario’s new home builders. Tarion also works with the building industry to help educate new home buyers about their warranty rights, and about how to protect and maintain their warranty.

For more information, we encourage you to visit the Ontario New Home Warranty program website at New Home Warranty Inforamtion

Tarion Warranty Corporation is a private corporation under the laws of Ontario launched in 1976 to administer the Ontario New Home Warranties Plan Act. Every new home and condominium unit purchased in Ontario comes with statuatory warranty coverage from the builder that is backed by Tarion Warranty Corporation. Only registered builders are legally permitted to build new housing units in Ontario.