Well, there's a proposal in the pan-Canadian framework that first ministers agreed to for a retrofit code to be developed through a consultative process involving provinces and territories, and then subsequently for it to be implemented by them. Other areas looked at included home labelling of energy efficiency improvements, which again would be up to provincial and territorial governments to implement. But to my knowledge not elaborated, in that context, was any requirement on homeowners to retrofit their homes.
On November 2nd, 2017. See this statement in context.