Is the home seller responsible for turning on disconnected utilities?

If a property has had its water and electricity disconnected, is the seller required to bear the cost of turning on water and power once under contract so the buyer can conduct due diligence?

If standard offer to purchase form 2-T is used - - yes.

Paragraph 8c) discusses this scenario, saying that the home seller shall provide reasonable access to the property, including providing existing utilities operating at the Seller's cost, including any connections and de-winterizing.

If the parties involved don’t wish to have the seller pay for this cost, an addendum would need to be added to the contract to sell this out.