How to Hire a Contractor in Canada 2025

Updated March 2025 · 12 min read

Hiring the right contractor is one of the most important decisions in any home renovation project. A skilled, honest contractor delivers quality work on time and on budget. The wrong one can leave you with incomplete work, hidden defects, and a legal battle. This guide walks you through every step of finding, vetting, and hiring a contractor in Canada.

Step 1: Define Your Project Scope

Before contacting contractors, have a clear picture of what you want done. Prepare a written scope of work — even a basic one — that describes the project, the materials you want (or leave it open for the contractor to specify), and any known constraints (permit requirements, condo board rules, etc.).

A clear scope enables contractors to provide accurate, comparable quotes. Vague requests lead to vague quotes that are hard to compare and invite scope creep later.

Step 2: Find Candidates

The best contractors in Canada are typically found through:

• Personal referrals: Ask neighbours, friends, and family who they've used and would recommend. A referral from someone whose renovation you can see in person is the gold standard
• HomeStars: Canada's largest contractor review platform — check ratings, read reviews, and look for verified reviews
• Google Reviews: Search the contractor's name and look for consistent feedback over multiple years
• BuildDirect, Houzz, or Thumbtack: Additional platforms with contractor listings
• Local trade associations: RenoMark (renovation-specific), CHBA (Canadian Home Builders' Association), RECA, local electrician or plumber associations

Step 3: Verify Credentials

WSIB / WCB Coverage

Workplace Safety and Insurance Board (WSIB) in Ontario, or Workers' Compensation Board (WCB) in other provinces, covers workers injured on the job. If a contractor or their crew is injured at your home and doesn't have coverage, you may be held liable. Always ask for a WSIB/WCB clearance certificate before work starts and verify it directly with the board — certificates can be forged.

Liability Insurance

A reputable contractor carries commercial general liability (CGL) insurance of at least $2 million. This covers property damage they cause during the renovation. Ask for a certificate of insurance naming you as additional insured for the duration of the project.

Trade Licences

In Canada, specific trades require provincial licences:

• Electricians: Licensed electrician required in all provinces; work must be inspected by ESA (Ontario) or equivalent
• Plumbers: Licensed plumber required; work typically requires municipal inspection
• Gas fitters: TSSA (Ontario) or equivalent licence required for any gas work (furnaces, fireplaces, stoves)
• General contractors: No universal licence in most provinces, but some municipalities require registration

Step 4: Get Three Written Quotes

Get at least three detailed written quotes for any project over $5,000. A proper quote should include:

• Detailed scope of work (what is and isn't included)
• Materials specified (brand, grade, quantity)
• Labour costs broken out
• Estimated timeline
• Payment schedule
• Warranty terms
• Whether HST/GST is included or extra

Be skeptical of quotes that are significantly lower than others — this often signals cut corners, inexperienced workers, missing insurance, or plans to upsell during the project.

Step 5: Check References

Ask for 2–3 references from projects similar to yours completed in the past 12–24 months. Actually call them and ask:

• Was the project completed on time and on budget?
• How did they handle unexpected issues?
• Was the site kept clean and professional?
• Would you hire them again?
• Can I come see the completed work?

Step 6: The Contract

Never proceed without a written contract. A good renovation contract includes:

• Full scope of work (detailed)
• Start and completion dates (with consequences for delays)
• Total price and payment schedule
• Change order process (any scope changes must be agreed in writing before work proceeds)
• Materials specifications
• Warranty (typically 1–2 years on workmanship)
• Dispute resolution process
• Lien holdback provisions (see below)

Lien Holdback: Protecting Yourself

Canadian construction lien laws in most provinces require you to hold back 10% of each payment for a period after project completion (typically 45 days). This holdback protects you if the contractor's subcontractors or suppliers file a lien against your property for unpaid bills. Never release the final holdback until the lien period expires and you're confident there are no outstanding claims.

Payment Schedule

A standard payment schedule for a major renovation:

• Deposit: 10–15% at contract signing
• Progress payments: 25–30% at defined milestones (e.g., framing complete, rough-ins done)
• Near completion: 25–30% when substantially complete
• Final holdback: 10% released after lien period (45 days)

Dispute Resolution

If a dispute arises, document everything in writing (emails, texts). For disputes under $35,000 (varies by province), Small Claims Court is an option. For larger disputes, arbitration or civil litigation applies. Some provinces have contractor licensing bodies that handle complaints. Prevention — a solid contract, clear scope, and thorough vetting — is far better than any dispute process.