Before You Renovate: A Due-Diligence Checklist for Canadian Homeowners

Consumer protection rules for home renovations vary across Canadian provinces. Some jurisdictions require written contracts. Some require contractor licensing. Some offer statutory caps on cost overruns. Others rely on general consumer protection frameworks and leave the specifics to the homeowner.

The challenge isn't that rules don't exist. It's that they're different depending on where you live, and most homeowners don't know which ones apply until a project has already gone sideways. This checklist won't tell you what the rules are in your province (that's the job of your provincial consumer protection office). What it will do is give you the right questions to ask and the right sources to check before you sign a renovation contract.

How to Verify a Contractor Before Hiring in Canada

Verification is the single most effective step a homeowner can take before signing a contract. The steps below cover what to check, where to look, and what to ask. Each one maps to a specific risk that shows up repeatedly in Canadian renovation disputes.

How to Check if a Contractor Is Licensed in Your Province

What to check: Whether your province or municipality requires general contractors to hold a license for the type of work you need.

Licensing requirements differ significantly across Canada. Quebec requires contractors to be registered with the Régie du bâtiment du Québec (RBQ), which maintains a searchable public registry. British Columbia requires builders of new homes to register with the HomeOwner Protection Office, but renovation contractors are not covered under that requirement. Alberta does not have provincial contractor licensing for renovations, though individual trades (electricians, plumbers, gas fitters) must hold provincial licences.

Even where the province doesn't require a general contractor licence, your municipality may. Some cities require business licences, contractor registrations, or specific trade permits. Call your local building department to confirm what applies in your area.

Question to ask the contractor: "Are you licensed or registered for this type of work in this province and municipality?" Then verify independently through the relevant registry or office.

What Should a Renovation Contract Include?

What to check: Whether your province requires renovation contracts to be in writing above a certain dollar amount, and what that contract must include.

Regardless of what your province requires, every renovation contract should include:

• Detailed scope of work describing exactly what will be done, what materials will be used, and what is excluded

• Total cost or cost estimate with a clear statement of whether the price is fixed or subject to change

• Payment schedule tied to milestones (not calendar dates)

• Start and completion dates with provisions for delays

• Change order process describing how changes to scope or cost are handled and who must approve them in writing

• Warranty terms for both workmanship and materials

• Dispute resolution process (mediation, arbitration, or court)

• Cancellation and termination clauses

If a contractor is unwilling to put these terms in writing, that is a significant red flag. Reputable contractors expect written agreements because they protect both parties.

Where to look: Your provincial consumer protection office website (linked below) can tell you which Act governs renovation contracts in your jurisdiction.

How to Protect Yourself from Renovation Cost Overruns

What to check: Whether your province places a statutory limit on how much a renovation can exceed the original estimate without a signed change order.

Cost overruns are the most common source of renovation disputes in Canada. They happen when the scope changes mid-project, when the contractor encounters unforeseen conditions (structural damage, mould, outdated wiring), or when the original estimate was incomplete.

Some provinces cap cost overruns at a percentage of the original estimate unless the homeowner signs a written change order. Even if your province doesn't mandate a cap, you can include one in your contract. A common approach is to limit overruns to 10% of the original estimate without written approval from the homeowner.

Question to ask the contractor: "What happens if the project costs more than the estimate? Is there a written change order process?" If the answer is vague, write the process into the contract before you sign.

How to Verify Contractor Insurance in Canada

What to check: Whether the contractor carries commercial general liability (CGL) insurance and workers' compensation coverage (WCB/WSIB, depending on province).

Commercial general liability insurance protects you if the contractor damages your property or a third party is injured during the renovation. Workers' compensation coverage (called WSIB in Ontario, WCB in most other provinces) protects you from liability if a worker is injured on your property.

How to verify:

1. Ask the contractor for a current certificate of insurance naming you as a certificate holder

2. Contact the insurer directly to confirm the policy is active and covers the type of work being performed

3. Confirm the policy hasn't lapsed or been cancelled since the certificate was issued

4. Check WCB/WSIB status through your provincial workers' compensation board website (most allow public searches by company name)

Do not rely on photocopies of policy documents provided by the contractor. Certificates can be outdated, and policies can lapse between the time a certificate was issued and the time work begins.

What Is a Milestone-Based Payment Schedule?

What to check: Whether the proposed payment schedule ties payments to completed work rather than front-loading deposits.

A milestone-based payment schedule means you pay as work is completed, not before. This protects you from paying for work that hasn't been done and gives the contractor an incentive to complete each phase before moving to the next.

A standard milestone structure looks like this:

• 10% to 15% deposit at contract signing (to cover initial material purchases)

• Progress payments at defined milestones: demolition complete, rough-in inspected, drywall complete, fixtures installed

• 10% holdback on final payment, released after a walkthrough and deficiency list completion

Be cautious of any contractor who asks for more than 20% upfront or requests full payment before work is complete. Large upfront payments are one of the most common patterns in renovation fraud cases across Canada.

What Warranty Should a Contractor Offer on Renovations?

What to check: Whether the contractor offers a written warranty on workmanship and materials, and what it covers.

A reasonable warranty for renovation workmanship is one to two years. Material warranties are typically covered by the manufacturer, but the contractor should specify which materials are warranted and provide documentation.

The warranty should be in the contract, not a verbal promise. It should specify:

• What's covered (workmanship, materials, or both)

• The duration of coverage

• How to make a warranty claim

• What's excluded (normal wear and tear, homeowner modifications)

Question to ask the contractor: "What warranty do you offer on workmanship? On materials? Is it written into the contract?"

How to Compare Renovation Quotes Fairly

What to check: Whether you've received at least three written quotes based on the same scope document.

When three contractors quote against the same written scope, their numbers become directly comparable. Without a shared scope, you're comparing different interpretations of a conversation at different price points. One contractor's $30,000 quote might include demolition, disposal, and permit fees. Another's $25,000 quote might exclude all three.

To compare fairly:

1. Write a detailed scope of work before contacting any contractor

2. Send the same scope document to every contractor you invite to quote

3. Ask each contractor to provide an itemized breakdown (labour, materials, permits, disposal)

4. Note any exclusions or allowances in each quote

5. Compare the total cost, but also compare what's included at that price

The cheapest quote is not always the best value. A quote that's significantly below the other two may indicate missing scope items, lower-quality materials, or an incomplete understanding of the project.

Red Flags When Hiring a Renovation Contractor

Not every contractor who exhibits one of these behaviours is unreliable, but each one warrants further investigation before you commit:

• No written contract offered. A contractor who resists putting terms in writing is a contractor you cannot hold accountable.

• Asks for more than 20% upfront. Large deposits before any work begins are a common pattern in renovation fraud.

• Cannot provide proof of insurance. If a contractor can't produce a current certificate of insurance, do not proceed.

• Pressures you to decide quickly. Legitimate contractors expect homeowners to take time to compare quotes and check references.

• No fixed business address. A contractor who operates without a verifiable business address or only communicates through a personal cell phone may be difficult to hold accountable if something goes wrong.

• Refuses to pull permits. If your renovation requires a building permit, the contractor should either pull it or clearly explain why one isn't required. Skipping permits can create problems when you sell your home.

• No references from recent projects. A contractor with experience should be able to provide references from projects completed within the last 12 months.

What to Do if a Renovation Goes Wrong in Canada

If a renovation project goes off track, your options depend on your province and the terms of your contract:

1. Document everything. Take photos, save all communications (texts, emails), and keep copies of all invoices and receipts.

2. Put your concerns in writing. Send the contractor a written notice describing the issue and the resolution you expect, with a reasonable deadline.

3. Contact your provincial consumer protection office. They can advise you on your rights and may offer mediation or complaint investigation services.

4. File a complaint with the Better Business Bureau. While the BBB cannot enforce resolutions, a formal complaint creates a public record and may prompt the contractor to respond.

5. Consult a construction lawyer. For disputes involving significant amounts, legal advice is worth the cost. Many construction lawyers offer initial consultations at a fixed fee.

6. Consider small claims court. For disputes under your province's small claims limit (typically $25,000 to $50,000 depending on province), small claims court is designed to be accessible without a lawyer.

The strength of your position in any dispute depends almost entirely on your documentation. A written contract, a clear scope, and a record of communications are your most valuable tools.

Provincial Consumer Protection Offices by Province

These are the offices that administer consumer protection rules in each province. They can tell you which rules apply to renovation contracts in your jurisdiction.

Quick Checklist: 10 Questions to Ask Before Signing a Renovation Contract

1. Is the contractor licensed or registered where required?

2. Do I have a written contract with scope, cost, timeline, and payment terms?

3. Does the contract include a change order process with written approval requirements?

4. Have I verified insurance and WCB/WSIB independently?

5. Are payments tied to completed milestones, not calendar dates?

6. Is the deposit 15% or less of the total contract value?

7. Is the warranty in writing with clear terms and duration?

8. Did I get at least three quotes against the same written scope?

9. Have I checked references from projects completed in the last 12 months?

10. Do I know which provincial consumer protection office to contact if something goes wrong?

If the answer to any of these is no, the place to start is your provincial consumer protection office. They can tell you exactly which rules apply where you live and what your options are.

Sources

This article is for general educational purposes only and does not constitute legal, regulatory, or licensing advice. buy better® does not provide legal interpretations, contractor licensing verification, or regulatory compliance services. Consumer protection rules vary by province and are subject to change. The checklist above is intended to help you identify the right questions to ask and the right offices to contact, not to explain or apply the rules themselves. Consult your provincial consumer protection office or a licensed legal professional for advice specific to your jurisdiction and circumstances.