Insurance, bonding and liability

Electrical work carries risks that no amount of skill removes completely. A fire can start years after a job is finished. A worker can be injured. A customer's equipment can be damaged by a surge during a tie-in. A contractor can go out of business halfway through a project and leave the owner with half a building. Insurance and bonding are how the construction industry spreads those risks, and liability law decides who pays when something goes wrong. Master and contractor exams test this area because regulators, owners and general contractors all rely on contractors carrying the right coverage, and because a certificate holder who lets coverage lapse can expose the company, and sometimes themselves, to losses far beyond the value of any job.

This lesson explains the main kinds of insurance and bonds that electrical contractors carry, how workers' compensation fits in, and the basic principles of liability. Insurance policies are contracts with detailed wording, and bonds are three-party guarantees with their own rules. Treat the descriptions here as general. When an exam question depends on specific coverage, it will give you the facts you need.

Why owners and regulators ask for insurance

Before Parkland Valley could start the Gaetz Avenue clinic, the general contractor asked for three documents: a certificate of insurance showing commercial general liability coverage with the general contractor and owner named as additional insureds, a workers' compensation clearance letter, and the bonds required by the tender. Before Ontario issues or renews an electrical contractor licence, ESA requires proof that the contractor holds the liability insurance set by the regulation and has the required workers' compensation coverage. In Alberta, permit issuers and customers routinely ask for similar proof. Each request has the same purpose: to make sure that if the contractor causes a loss, there is money to pay for it.

Commercial general liability

Commercial general liability, or CGL, insurance is the basic policy every contractor carries. It covers the contractor's legal liability to others for bodily injury and property damage caused by its operations, and usually for completed operations, which means work that has been finished and handed over. If a wiring fault at Aspen Ridge causes a fire two years after the job, the homeowner's insurer may pay for the damage and then pursue Parkland Valley, and Parkland Valley's CGL insurer would defend and, if the claim succeeds, pay up to the policy limits.

CGL policies have limits, deductibles and exclusions. A typical policy has a per-occurrence limit and an aggregate limit for the policy year. Common exclusions include the cost of redoing the contractor's own faulty work, pollution, professional design errors, and damage to property in the contractor's care, custody or control. Contractors who do design work, such as design-build projects, may need professional liability insurance, often called errors and omissions coverage. Contractors with vehicles need commercial auto insurance, and equipment such as lifts and tools may be covered by an equipment floater.

Certificates and additional insureds

A certificate of insurance is a summary issued by the insurer or broker showing the policy types, numbers, limits and dates. It is evidence of coverage, not the policy itself. Owners and general contractors often require to be named as additional insureds on the contractor's CGL policy, so that claims arising from the contractor's work are defended by the contractor's insurer rather than their own. Contracts may also require the insurer to give notice before cancelling the policy, and a waiver of subrogation, which stops the insurer from suing other parties that the contract protects.

Gord keeps a certificate folder for every client and a calendar of policy renewal dates. Priya learns why when a renewal arrives late one year: the general contractor on another job refused to let the crew on site until a current certificate arrived. On the exam, if a question asks what a contractor should do when its liability insurance is about to lapse, the answer is to renew it before it lapses, notify the regulator if the licensing rules require it, and stop work if coverage cannot be maintained. In Ontario, for example, the regulator's guideline requires a contractor whose required insurance lapses to notify ESA and stop operating until the requirement is met.

Workers' compensation

Every province has a workers' compensation system that provides no-fault benefits to workers injured at work, paid from premiums charged to employers. In exchange, workers covered by the system generally cannot sue their employer for the injury. Coverage is compulsory for most construction employers. Alberta's system is run by the Workers' Compensation Board, often called WCB-Alberta. Ontario's is run by the Workplace Safety and Insurance Board, or WSIB. Each province sets its own rules on who must register, how premiums are calculated, and how quickly injuries must be reported.

Two workers' compensation rules matter on almost every job. First, a principal, such as a general contractor or owner, can become liable for unpaid premiums of contractors it hires if those contractors do not have coverage, so general contractors ask for a clearance letter showing the subcontractor is registered and in good standing. Second, employers must report injuries to the board within a set period, keep records, and cooperate with return-to-work programs. A small contractor that treats an injury informally, paying for a worker's time off without reporting it, can face penalties and lose the protection the system provides.

Premiums depend on the industry rate group and the employer's own claims history. Contractors with fewer and less costly claims can earn rebates or lower rates, and contractors with many claims can pay surcharges. That gives safety a direct financial value, which is one reason the safety program in lessons 7 and 8 is also a business decision.

Surety bonds

A surety bond is a three-party guarantee. The contractor, called the principal, arranges for a surety company to guarantee its performance or payment obligations to the owner, called the obligee. If the contractor fails, the surety pays or completes the work, up to the bond amount, and then seeks to recover its loss from the contractor and, usually, its owners under an indemnity agreement. A bond is therefore not insurance for the contractor. It is credit, and the surety only issues it after examining the contractor's finances, experience and capacity.

Three bonds are common on Canadian construction projects. A bid bond, submitted with a tender, guarantees that a successful bidder will enter into the contract and provide the required performance and payment bonds. A performance bond guarantees that the contractor will perform the contract. A labour and material payment bond guarantees that the contractor will pay its subcontractors and suppliers. On public projects and many larger private ones, performance and payment bonds are each commonly set at half the contract price, and standard bond forms are published by the Canadian Construction Documents Committee.

Liability basics

Liability is the legal responsibility to compensate someone for a loss. For contractors, it comes from three main sources. Contract liability arises when the contractor breaks a promise in the contract, such as failing to complete on time or failing to meet the specifications. Negligence arises when the contractor fails to take the care a reasonable contractor would take, and someone is harmed as a result. Statutory liability arises when a law imposes a duty, such as the duties of permit holders, employers and constructors, and a breach causes harm or results in penalties.

Negligence is the source of most serious claims. To succeed, a person who was harmed generally must show that the contractor owed them a duty of care, that the contractor fell below the standard of care, and that the failure caused the harm. The standard of care for electrical work is closely tied to the Code and the manufacturer's instructions. A contractor whose work violates the Code will find it very hard to argue that it took reasonable care. Following the Code does not guarantee that a contractor will never be liable, but failing to follow it makes liability far more likely.

Liability can also be personal. Employees can be personally liable for their own negligence, although employers are usually vicariously liable for employees acting in the course of their work. Directors and officers can face personal liability under some statutes, such as occupational health and safety laws, which can impose duties on directors to take reasonable care that the corporation complies, and the trust provisions of lien laws. Incorporating a business limits some risks, but it does not remove all personal exposure.

Limiting liability in contracts

Contracts often contain clauses that allocate liability: indemnities, in which one party agrees to cover another's losses; limitations of liability, which cap damages; and exclusions of certain kinds of damages, such as lost profits. Owners and general contractors often try to pass as much risk as possible down to subcontractors. Contractors should read these clauses carefully, compare them with their insurance coverage, and negotiate when a clause would make them responsible for risks their insurance does not cover. A broad indemnity that makes Parkland Valley responsible for losses caused by others' negligence, for example, may be uninsurable.

Courts look closely at exclusion and limitation clauses and may refuse to enforce them in some circumstances, such as when they are unconscionable or contrary to public policy. Consumer protection laws also limit what contractors can exclude in contracts with homeowners. The safest approach is to do the work properly, document it, carry insurance that matches the contract's risk allocation, and get advice from a broker or lawyer on unusual clauses.

# Does the CGL policy cover what the contracts require?
policy = {"per_occurrence": 2_000_000, "aggregate": 5_000_000, "completed_operations": True}
contracts = [
    ("Gaetz Ave clinic", 5_000_000, True),
    ("Hartley Farms", 2_000_000, True),
    ("Riverbend EV retrofit", 2_000_000, False),
]
for job, required, needs_completed_ops in contracts:
    ok = policy["per_occurrence"] >= required and (policy["completed_operations"] or not needs_completed_ops)
    gap = "" if ok else "  -> raise limit or add an umbrella policy"
    print(f"{job:<24} requires {required:>9,}  covered: {ok}{gap}")

Gaetz Ave clinic         requires 5,000,000  covered: False  -> raise limit or add an umbrella policy
Hartley Farms            requires 2,000,000  covered: True
Riverbend EV retrofit    requires 2,000,000  covered: True

The limits in the calculator are invented. Real requirements come from each contract and from licensing rules. When a contract requires a higher limit than the base policy, contractors often add an umbrella or excess liability policy rather than raising every limit.

Reporting a claim

Insurance policies require the insured to report claims and circumstances that could lead to a claim promptly, often as soon as practicable. A contractor that hears a customer blame its work for a fire, a flood or an injury should notify its broker or insurer right away, even if the contractor believes the claim has no merit. Late notice can give the insurer grounds to deny coverage. The contractor should also avoid admitting liability or promising to pay, because that can prejudice the insurer's defence, and should preserve all records and physical evidence related to the job.