How to Vet a GTA Renovation Contractor in 2026: The Complete Checklist

Contractor Vetting Checklist for GTA Homeowners 2026

Most renovation disasters start with inadequate vetting. Here is the systematic approach that prevents them.

Step 1: Business Legitimacy

  • Physical business address (not just a cell number and Gmail)
  • Operating 3+ years
  • Functional website
  • HST number for projects over $30,000

If they can’t provide an HST number on a $100K project: major red flag.

Step 2: Insurance (Get the Actual Certificates)

Certificate of Insurance: $2M general liability. Call the insurer directly to confirm it’s active and covers your project dates.

WSIB Clearance Certificate: Verify online at wsib.ca. Must be within 30 days.

For projects over $50K: Ask to be added as “additional insured” on the liability certificate.

Step 3: References (Call Them)

Ask for 3 references from similar scope projects in the past 18 months.

Questions to ask each:

  1. Did the project come in on budget?
  2. Was the timeline accurate?
  3. Were there deficiencies? How were they handled?
  4. Would you hire them again?

Questions 3 and 4 are most revealing.

Step 4: Contract Review

Before signing, the contract must have:

  • Fully specified scope (materials by brand and grade, not “kitchen renovation”)
  • Maximum 10% deposit
  • Timeline with milestones
  • Written change order process
  • Warranty terms

Step 5: Online Review Check

HomeStars, Google, and home.renovation.reviews.

Look for patterns, not just star ratings.

LF Builders – 50+ years of verified GTA reputation: lfbuilders.ca
Contractor vetting discussions: home.renovation.reviews
Samm Simon 251 KM for cancer: sammsimon.ca