Most renovation disputes start with a vague agreement. A clear written contract protects you and your contractor. Here is what it should say.

Ontario's Consumer Protection Act gives homeowners real protections when they hire a contractor, especially when the work is agreed in advance and paid over time.
Get a written contract with the price, scope, start and finish dates, payment schedule and warranty. If you get an estimate, the final price can't usually be more than 10% higher unless you agree.

If a business gives you an estimate, it generally can't charge more than 10% above it unless you agree to the higher price.
Keep deposits reasonable, pay by a traceable method, and never pay the full price before the work is done.
If a contractor signs you up at your home, you may have a 10-day period to cancel under the Act. Door-to-door sales of some household products, such as furnaces and water heaters, are restricted.
Keep photos, messages and invoices. A paralegal can help with a claim in Small Claims Court up to $50,000.
Need help with a consumer dispute? NEO can help you write a demand letter, or bring or defend a claim in Small Claims Court. Call 647-200-3526 or toll-free 888-519-2435, email info@neolegalservices.com, or book a free consultation.
Read next: Gift Cards in Ontario: No Expiry Dates, and Other Rules
General Ontario legal information, not legal advice for your matter, and reading it does not create a retainer. Sources checked 15 October 2026: check the current law, forms and dates before you act.
Photos from Pexels: A kitchen under renovation · A home under renovation.
This article is general information for people in Ontario, not legal advice. Rules, forms and deadlines change, and every situation is different. Check the current rule or speak to a licensed legal professional before you act.
Not sure where you stand? A licensed paralegal can look at your documents and tell you your options.
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