You need to have your contract reviewed by an atty. Without seeing it, no one can actually opine. I've attached a link to contracts you have a statutory right to cancel and their time frames. Hope this helps.
My colleague's right. Generally the act proving for a consumer's right to cancel within 3 days doesn't apply if the contract is entered into at the home improver's premises, but it depends how much the contract is for, whether you initiated the negotiations, etc.
See the attached, linked again.
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