Will renovating my new home void my Tarion warranty?

Renovating your new home does not automatically void your entire Tarion warranty, but it can affect coverage for defects that are causally connected to your renovations. The principle is that Tarion covers builder-caused defects, not defects caused or contributed to by owner actions.

If you renovate in a way that causes or worsens a defect, Tarion may deny coverage for that specific defect on the basis that it was caused by your alteration rather than by a builder failure. For example, if you remove drywall and damage the building envelope in the process, any resulting water infiltration may not be covered because your renovation contributed to the problem.

The safest approach is to complete any significant renovations after the major warranty claims periods have passed or, at minimum, to photograph and document the pre-renovation condition of every area you are modifying. If a defect exists before your renovation, report it to Tarion before you renovate so it is on record as a pre-existing builder issue.

Consult Tarion's website and Construction Performance Guidelines, or speak with a lawyer, before undertaking renovations that affect structural elements, the building envelope, mechanical systems, or anything else covered under the longer warranty periods. A targeted renovation need not cost you your warranty coverage if it is done carefully.