Deposit rules
No statute caps the deposit amount, but the consumer protection rules do something stronger for contracts solicited or signed at your home: the contractor is an itinerant merchant and generally may not require or accept any payment during the 10 day cancellation period. New home deposits are protected by the mandatory GCR plan up to $50,000.
Office de la protection du consommateur: terms of payment for renovations (opens in new tab) · GCR: new home deposit protection (opens in new tab)