Signing a construction contract and bond

Surety Bonds for Ontario Contractors

Bonding capacity decides which projects you can bid. We connect Ontario contractors with licensed brokers who have surety markets and can help you get bonded, grow your limits and meet public contract requirements.

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Service & Support:

  • Follow-up from a licensed broker within 24 hours
  • Policy Review and Comparison
  • Risk Assessment
  • Help with certificates of insurance, policy changes and contract reviews
  • Renewal planning well before your policy expires

Quick answer

What are surety bonds for contractors in Ontario?

Construction surety bonds guarantee that a contractor will perform the work (performance bond), pay its subcontractors and suppliers (labour and material payment bond) or honour its tender price (bid bond). Under Ontario's Construction Act, public contracts of $500,000 or more require a performance bond and a labour and material payment bond, each for at least 50% of the contract price.

How construction bonds work

A surety bond is a three party guarantee between the contractor, the project owner and a surety company. If the contractor fails to perform or pay, the surety steps in, then looks to the contractor to repay it. That is why bonding is underwritten much like credit.

For Ontario public contracts of $500,000 or more, the Construction Act requires a labour and material payment bond and a performance bond, each covering at least 50% of the contract price, in the prescribed forms. Many private owners and lenders also ask for bonds on larger projects.

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How CommercialInsurance.ca works

We are not an insurer or a broker. We find you the right one.

  • Matched by industry

    We connect you with a broker who works with businesses like yours, not a generic call centre.

  • Licensed Ontario brokers

    Insurance brokers in Ontario are licensed by the Registered Insurance Brokers of Ontario (RIBO).

  • Fast follow up

    Once we receive your information, a professional in our network will connect with you within 24 hours.

  • No cost to be matched

    Our referral service is free for businesses. You deal directly with the broker for quotes and coverage.

Common construction bonds

These are the bonds Ontario contractors are asked for most.

Bid bond

  • Submitted with a tender
  • Guarantees you will sign at your bid price
  • Often 10% of the bid

Performance bond

  • Guarantees completion of the contract
  • At least 50% on Ontario public contracts over $500,000
  • Form 32 on public work

Labour and material payment bond

  • Protects subs and suppliers if you do not pay
  • At least 50% on Ontario public contracts over $500,000
  • Form 31 on public work

Maintenance bond

  • Covers warranty period defects
  • Sometimes required after completion
  • Shorter term

Licence and permit bonds

  • Required by some municipalities
  • Road cut and right of way permits
  • Small, fixed amounts

Lien bonds

  • Used to vacate a construction lien
  • Keeps funds flowing on a project
  • Arranged through a surety

How to get bonded and grow your capacity

What sureties look at

Sureties underwrite character, capacity and capital: your experience, the size and type of work you have completed, and your financial statements, ideally prepared by an accountant who knows construction.

  • Year end financial statements and work in progress schedules
  • Completed project history
  • Bank line and working capital
Contractor signing bond documents
Public infrastructure project

Start before you need it

Bonding takes time to set up. Talk to a surety broker months before your first bonded tender so your limits are in place when the right project comes up.

  • Set a single job and aggregate limit
  • Share your pipeline
  • Keep the surety updated as you grow

Bid bigger public and private work

Tell us about your construction company and the work you want to bid, and we will connect you with a licensed Ontario broker with surety markets who can set up or grow your bonding program.

See also general contractor insurance.

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High rise under construction

Surety Bond FAQs

Signing bond documents

Are bonds mandatory on Ontario public construction projects?

Yes. Under the Construction Act, public contracts with a price of $500,000 or more require a performance bond and a labour and material payment bond, each for at least 50% of the contract price, in the prescribed forms.

Is a surety bond the same as insurance?

No. Insurance protects you. A bond protects the owner, subcontractors and suppliers, and the surety expects the contractor to repay any claim it pays.

How much does a surety bond cost?

Bond premiums are usually a percentage of the bonded amount and depend on your financial strength and experience. A surety broker can quote once they review your financials.

Can a small contractor get bonded?

Yes. Smaller contractors can often start with modest limits based on their financial statements and experience, then grow them over time.

What happens after you request commercial insurance?

  1. Insurance broker on a discovery call taking notes1

    Discovery Call
    (30 to 45 min)

    Understand operations, contracts, assets, and loss history.

    We will request your
    expiring policies and loss runs.

    Get Started Now!
  2. Broker and business owner reviewing a risk checklist together2

    Risk Mapping
    (1 to 3 days)

    Document exposures, limits, sublimits, deductibles, and endorsements that fit your contracts.

    Get Started Now!
  3. Comparing side by side insurance proposals on a desk3

    Market Placement
    (2 to 5 days)

    Approach the right markets
    and negotiate terms, exclusions, and deductibles.

    Get Started Now!
  4. Business owner signing an insurance policy with a broker4

    Proposal & Bind


    Side-by-side options in clear wording, so you can choose with confidence.

    Get Started Now!

Protect your team too

Offer health, dental and life benefits your employees will value.

We also connect Ontario businesses with licensed benefits advisors, from two person teams to growing companies.

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    I was always the type of customer that never believed in insurance and only really got it because I had to. Then I connected with a broker through Commercial Insurance.ca and they asked me questions no one else ever did and that's how I knew something was different. They took the time to understand and evaluate the risks. Well, I ended up getting some extra coverage (legal expense) and thank goodness I did. Something fairly innocent turned into something quite nasty and I didn't have to do too much... my coverage took care of it. Now I look at Insurance as a security blanket for my business.

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