A performance bond is a type of surety bond that guarantees a contractor will complete a construction project according to the contract terms. In Ontario and across Canada, owners require performance bonds to reduce completion risk, protect project timelines, and limit financial losses when a contractor cannot finish the work.
Performance bonds are common on public sector construction projects, large private developments, and lender financed builds. If you bid or build in Toronto, the GTA, or anywhere in Ontario where owners demand strict procurement standards, performance bonding is often a requirement, not a preference.
What a performance bond is
A performance bond is a three party agreement:
The principal is the contractor who must perform the contract
The obligee is the owner, municipality, lender, or general contractor who requires the bond
The surety is the bonding company that backs the guarantee
Unlike insurance, surety is credit based. If the surety pays a claim, it may seek reimbursement from the contractor. That is why underwriters assess financial strength and project controls before they approve bonding capacity.
How performance bonds work on construction projects
A performance bond guarantees contract performance. If a contractor defaults, the surety steps in to ensure completion, subject to the bond form and claim process.
Depending on the situation, the surety may:
Support the existing contractor to complete the project
Arrange a replacement contractor to finish the work
Provide funding up to the bond amount, subject to the bond terms
The purpose is to protect the owner from delay, re procurement costs, and disruption. Performance bonds also help protect subcontractors and suppliers when paired with labour and material payment bonds.
Why construction projects require performance bonds
Owners require performance bonds because construction risk is expensive and time sensitive. A single default can create major financial losses through schedule delays, re tendering, and escalating costs.
A performance bond helps owners manage:
Completion risk and project timeline exposure
Budget shocks tied to replacing a contractor mid build
Contract disputes and legal costs that follow delays
Coordination issues across multiple trades and scopes
Lender requirements for funded projects
For contractors, performance bonding can unlock higher value work and improve bid credibility. It signals to owners that the contractor has been vetted by a surety underwriter.
When performance bonds are required in Ontario and across Canada
Performance bond requirements depend on the owner, contract type, and project risk profile. They are most common on:
Public sector construction projects in Ontario
Large private developments with tight schedules
Projects financed by lenders that require completion security
Contracts where the owner wants standardized risk control across bidders
Higher risk scopes where failure would disrupt critical path timelines
In many tenders, bid bonds come first and performance bonds follow at award. If a tender requires performance bonding and you cannot provide it quickly, you may lose the contract even with a strong price.
How performance bonds fit with insurance and contract terms
Performance bonds do not replace insurance. Owners often require both bonding and commercial general liability insurance because they address different risks.
Insurance responds to bodily injury or property damage claims, subject to policy terms, exclusions, and coverage limits. Bonding guarantees contract performance.
On many construction projects, contracts also include wrap up liability coverage and project specific builders risk. Coordination matters. If responsibilities are unclear, disputes can increase legal fees and slow claim resolution.
Contract terms that commonly affect risk include:
Wrap up liability requirements and enrollment rules
Project specific builders risk responsibilities for materials and work in progress
Municipal permitting and building code compliance expectations
Hold harmless and indemnification clauses that shift risk between parties
Completed operations exposure that can remain for years after turnover
Contractors should align contract obligations with their insurance protection and surety program so coverage and bonding work together during a dispute.
What surety underwriters look for before approving performance bonds
Surety underwriters focus on financial strength, capacity, and project controls. They want proof that you can finish the job even when conditions change.
Underwriters often review:
Financial statements and working capital
Liquidity, net worth, and financial ratios
Credit history and existing surety lines
Work in progress schedules and backlog concentration
Experience with similar project size and complexity
Job costing, change order discipline, and reporting controls
Key personnel, supervision strength, and safety culture
If your business is growing, current financial reporting and clear backlog documentation can improve bonding capacity and reduce underwriting friction.
Common reasons performance bond claims happen
Most bond claims start with project stress that goes unmanaged. Common triggers include:
Cash flow strain from underpricing or slow payments
Schedule slippage and missed milestones
Subcontractor failures and labour shortages
Quality issues and rework disputes
Weak documentation on change orders and scope
Poor project reporting that hides problems until they escalate
Strong project controls reduce claim risk. They also improve how sureties price and support your bonding program.
Frequently asked questions
Does a performance bond cover the owner for every loss
No. The bond responds according to the bond form and the contract. The claim process determines the surety response and limits.
Is a performance bond required on every project
No. It depends on owner policy, project size, lender requirements, and risk profile. Public and institutional owners use them more often.
Does a performance bond replace commercial general liability insurance
No. A performance bond guarantees contract completion. Commercial general liability insurance helps cover bodily injury or property damage claims and related legal costs, subject to policy terms.
How do I increase performance bond limits over time
Build a consistent surety relationship, keep financial statements current, maintain strong working capital, and prove success on progressively larger construction projects.
Talk to Boardwalk
If your next project in Ontario requires a performance bond, do not wait until the tender deadline. We help contractors and developers structure bonding programs that support growth across Ontario and Canada.
Send your tender documents, the required bond wording, your bid amount, and your most recent financial statements. We will confirm feasibility, identify capacity constraints early, and move the bond request quickly so you stay competitive.
