Performance bonds are often misunderstood. Many contractors treat them as a formality in tender documents. Owners and lenders treat them as a core control for schedule, quality, and completion risk. In Ontario, performance bonds are common on public work, large private developments, and projects where delays can cascade into real financial loss.
This guide explains what a performance bond in Ontario guarantees, how performance bond claims actually unfold, and what contractors can do to reduce the chance of a claim.
Who this applies to
This applies to contractors and trade contractors in Ontario who:
Bid on public tenders or institutional projects
Work on large private developments with lender oversight
Are being asked for performance and payment bonds by owners or general contractors
Want to increase bonding capacity to win higher value contracts
Need to understand how surety bond claims affect future approvals and pricing
If owners are asking you for a performance bond, you are moving into a higher tier of work. Your surety program needs to match that level.
Definitions
Surety bond: A three party agreement where the contractor guarantees an obligation to the owner, backed by a surety company.
Performance bond: A bond that guarantees the contractor will perform the contract in accordance with the contract terms.
Bond limit: The maximum amount the surety may be obligated to pay under the bond, subject to the bond form and conditions.
Default: A failure to meet key contract obligations, such as schedule, performance, or financial requirements, that triggers the owner’s right to invoke remedies.
Work in progress schedule: A summary of your active projects, percent complete, billings, costs, and expected margins used by surety underwriters to assess capacity.
Bond claim: A formal notice that the owner believes the contractor has defaulted and is seeking surety response under the bond.
What a performance bond guarantees
A performance bond guarantees completion of the contracted work according to the contract terms. It does not guarantee perfection, and it does not eliminate disputes. It provides the owner with a structured completion remedy if the contractor defaults.
If the contractor defaults, the surety may respond by:
Supporting the contractor to complete the work
Arranging completion through another contractor
Paying the owner up to the bond limit, subject to the bond terms
A performance bond is not a blank cheque. The surety response is tied to the bond form and the underlying contract.
What is covered and not covered (practical examples)
Performance bonds are about contract performance, not general risk transfer.
What is typically covered:
Failure to complete the contracted scope after an owner declared default under the contract
Financial inability to carry the work to completion
Abandonment of the project
Subcontractor failure that the contractor cannot remedy and that drives default
What is typically not covered:
Routine warranty work where there is no default
Minor deficiencies that do not rise to contract default
Owner driven scope disputes without a clear default event
Costs outside the bond form, such as certain penalties, depending on wording
Practical example
A contractor is behind schedule and cannot staff the project. The owner issues notices, milestones are missed, and the owner declares default. The surety may step in to support a completion plan or arrange a replacement contractor.
Practical example
A contractor has a deficiency list and the owner is unhappy, but the work is progressing and no default is declared. This is usually managed through contract administration, not the bond.
Common reasons performance bond claims arise
Most bond claims start with project stress and poor communication. The formal claim is often the last step, not the first.
Common triggers include:
Schedule slippage and missed milestones
Cash flow strain due to underpricing or slow payment
Labour shortages and subcontractor failures
Quality defects and rework that consume time and margin
Scope disputes that become unmanageable
Weak project documentation and change order control
Breakdown in owner contractor communication
Bond claims often follow a pattern: the project falls behind, the contractor runs out of working capital, trade performance declines, and documentation becomes thin. At that point, the owner is protecting the completion date.
How performance bond claims really happen in Ontario
Claims usually move through stages.
Stage 1: Early distress signals
The owner sees missed milestones, trade churn, or quality issues. Site meetings become more frequent, and requests for recovery schedules increase.
Stage 2: Formal notices under the contract
Owners issue written notices, demand cure plans, and ask for updated schedules. This is when contractors should involve internal leadership and their surety broker early.
Stage 3: Default and claim notice
If the contractor cannot cure the issues, the owner may declare default and provide notice to the surety under the bond form.
Stage 4: Investigation and response plan
The surety reviews the contract, project status, finances, and documentation. The surety then works toward a completion path that fits the bond form.
The best outcomes usually come from early visibility and a credible recovery plan.
How sureties evaluate performance bond risk
Sureties ask a simple question. Can this contractor finish this project even if things go wrong.
Underwriters look at:
Project size compared to your prior work
Your project management team and systems
Backlog and workload concentration
Financial strength and liquidity
Change order discipline and documentation
Subcontractor strategy and qualification process
Claims history and dispute pattern
Surety bonds function like credit, not insurance. Underwriters are extending trust based on evidence.
Cost drivers and underwriting questions brokers actually ask
If you are trying to qualify for performance bonds in Ontario, expect questions in these areas.
Financial strength
Working capital and net worth
Debt levels and banking support
Profit stability and margin quality
Owner draws and cash management discipline
Capacity and backlog
How many active projects you have
Whether backlog is concentrated with one owner or one project type
Whether you have the staffing to deliver the schedule
Project controls
How you manage RFIs, change orders, and daily reports
How you track cost to complete and forecast margins
How you handle subcontractor compliance and performance issues
Experience fit
Comparable completed projects with references
Experience with the same delivery method and contract terms
History of finishing on time and resolving issues without litigation
Better submissions and better documentation lead to better outcomes.
How to reduce the likelihood of a bond claim
Reducing bond claim risk is mostly operational discipline.
Price risk honestly
Underpricing is one of the most common root causes of default stress. If you cannot fund labour, materials, and rework, the schedule slips quickly.
Control cash flow
Bonded work can be cash intensive. Maintain tight billing, lien compliance where relevant, and a clear collections process.
Strengthen subcontractor qualification
Many defaults originate from trade failures. Qualify subs, verify capacity, and enforce contract terms early.
Document everything
Daily reports, meeting minutes, RFIs, and change orders protect you and reduce disputes. If you cannot prove scope changes and approvals, you lose leverage.
Escalate early
Sureties prefer early visibility rather than last minute surprises. Early intervention can prevent a formal default.
Mistakes that cause bonding problems
These issues commonly lead to reduced capacity or tougher terms.
Big step up in project size without proven history
Weak work in progress reporting and outdated financials
Overloaded backlog and concentration with one owner
Volatile margins and weak job costing
Late change order submissions and unclear scope boundaries
Poor communication with owners during schedule stress
Waiting too long to involve the surety broker
Checklist for performance bond readiness
Use this checklist before bidding a bonded project.
Financial statements are current and clean
Work in progress schedule is up to date
Project size is within a realistic step up range
Subcontractor plan is confirmed and capacity is verified
Billing and collections plan is clear
Project documentation process is defined
Owner communication plan is set, including escalation steps
FAQ
Is a performance bond required on every Ontario project?
No. It depends on owner policy and project risk. Public and institutional owners use them more often.
Does a performance bond replace insurance?
No. Bonds and insurance address different risks. Owners often require both.
Can a performance bond limit increase as I grow?
Yes, but it usually requires updated financials and evidence of successful delivery at the next size tier.
What is the difference between a bid bond and a performance bond?
A bid bond supports the tender and confirms you will sign and provide required bonds if awarded. A performance bond supports completion after award.
Do performance bonds cover subcontractor non payment?
That is usually addressed by labour and material payment bonds, not performance bonds.
How long does it take to get a performance bond issued?
For established programs, issuance can be quick once the bond form and contract details are clear. New programs require underwriting.
What should I do if a project is slipping on a bonded job?
Escalate early, document the recovery plan, and involve your internal leadership and surety broker before the situation becomes a default notice.
Request a performance bond program review
If owners in Ontario are starting to ask you for performance bonds, it is time to formalize your surety program. We can review your current capacity, identify constraints, and map a path to smoother approvals.
Request a quote or talk to a surety specialist.
What we need from you:
Last year end financial statements and most recent interim statements
Current work in progress and backlog summary
List of completed comparable projects with references
The bond form and contract requirements for the next project
Ownership and signing authority details
Banking information and available credit facilities
Any prior bonding history and claims, if applicable
