General Contractor Contractors in London
6 verified general contractor contractors in London. Compare ratings and reviews.
General Contractor in London — What You Need to Know (2026)
Looking for the best general contractor contractors in London? Our directory lists 6 verified general contractor companies in London, Ontario, ranked by Google reviews and ratings. Compare general contractor contractors near London to find the right fit for your project.
General Contractor Cost in London (2026 Ontario Rates)
General Contractor cost in London varies by project scope, materials, and contractor experience. Ontario rates in 2026 reflect rising material costs and strong demand across the Golden Horseshoe. Get at least three written quotes from general contractor companies in London to ensure competitive pricing. Ask for a detailed breakdown of labour, materials, permits, and cleanup.
What to Look for When Hiring a General Contractor Contractor in London
When hiring a general contractor contractor in London, verify their credentials before signing. Check for WSIB (Workplace Safety and Insurance Board) clearance at wsib.ca, confirm liability insurance coverage of $2 million or more, and ask for references from recent projects in London or nearby communities. Licensed, insured, and Ontario Building Code compliant contractors protect your investment and your property.
Best Time for General Contractor Work in London
Timing matters for general contractor work in London. Ontario's seasonal weather patterns affect both scheduling and pricing. Book your general contractor project during shoulder seasons (spring or fall) for better availability and potential savings. Emergency services are available year-round, though expect premium rates during peak demand periods.
Every general contractor contractor in our London directory has a verified Google Business Profile with real customer ratings and reviews. Our marketing gap analysis helps you identify established companies with strong reputations versus newer entrants that may lack adequate documentation.
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Data from 6 verified Google Business Profiles
Showing 6 of 6 general contractor businesses in London
Sunnyvale General Contracting
London Builders Inc.
Owen Sound Renovations
London Construction Co.
Sarnia Renovations Ltd.
Woodstock Builders Inc.
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Hiring a General Contractor in Ontario
$15,000
Year-round
What to Look For
- WSIB and liability insurance
- Detailed contract with payment schedule
- Established sub-contractor relationships
Tips Before You Hire
- 1.Verify they pull all required permits
- 2.Ask for a detailed timeline with milestones
- 3.Never pay more than 10% upfront deposit
General Contractor Cost Guide — London (2026)
Typical price ranges for general contractor work in London. Get at least 3 quotes to compare.
Prices in CAD. Based on typical Ontario contractor quotes, 2026. Actual costs vary by scope, materials, and access.
General Contractor Licensing in Ontario
Required Licence
No single mandatory license, but must comply with OBC
General contractors should carry comprehensive liability insurance, WSIB, and pull all required permits. For new home construction, must be registered with Tarion.
Red Flags to Watch For
- No WSIB
- No liability insurance
- Won't pull permits
- Not Tarion registered for new builds
- No written contract
London Homeowner Resources
Official municipal links for permits, bylaws, and services
Ontario Contractor Verification
Verify licences, insurance, and credentials before hiring
What to Book This Season
March — May in London
Spring is peak booking season. Contact contractors in February for the best availability.
Before You Hire a Contractor in London
- Get at least 3 written quotes for comparison
- Verify WSIB clearance certificate (protects YOU from liability)
- Check Google reviews AND ask for local references
- Confirm they will pull all required permits
- Never pay more than 10-15% deposit upfront
- Get everything in writing — scope, timeline, payment schedule
- Verify their business insurance is current
- For regulated trades (electrical, plumbing, gas), verify their license number
Ontario law: Ontario's Construction Act provides a 10% holdback right on construction projects. Learn more
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Frequently Asked Questions — General Contractor in London
- How many general contractor contractors are in London?
- There are currently 6 verified general contractor contractors listed in London, Ontario in our directory.
- Do general contractor contractors need a licence in Ontario?
- No single mandatory license, but must comply with OBC. General contractors should carry comprehensive liability insurance, WSIB, and pull all required permits. For new home construction, must be registered with Tarion.
- Do I need a building permit for general contractor work in London?
- Most general contractor work in London may require permits from the local building department. Your contractor should handle the permit process. Always confirm permits are included in your quote.
- How much does general contractor work cost in London?
- General Contractor costs in London vary by project. Kitchen Remodel: $15,000-$75,000 (complete). Bathroom Remodel: $8,000-$35,000 (complete). Get at least 3 quotes to compare.
- How do I verify a general contractor contractor's insurance in London?
- Request a current Certificate of Insurance and verify WSIB (Workplace Safety and Insurance Board) coverage at wsib.ca. This protects you from liability if a worker is injured on your property.
- Do general contractors need to be registered with Tarion in Ontario?
- Yes, if building new homes or condos. Tarion registration is mandatory for new residential construction in Ontario. For renovations, there's no mandatory licence, but the contractor should carry liability insurance, WSIB, and pull all required permits.
- What is the 10% holdback rule in Ontario construction?
- Under Ontario's Construction Act, you have the right to hold back 10% of each payment for 60 days after substantial completion. This protects you from subcontractor liens. Never waive this right — it's your strongest protection.
- How long does a kitchen renovation take in Ontario?
- A typical kitchen renovation takes 6-12 weeks from demolition to completion. This includes 1-2 weeks demo, 2-3 weeks rough-in (plumbing, electrical), 1-2 weeks drywall/flooring, and 2-3 weeks cabinets, countertops, and finishing. Permit approval adds 2-4 weeks upfront.