Question 5 of 6: Insurance — bid bonds, performance bonds and construction liens

Question 5: Insurance — bid bonds, performance bonds and construction liens (20 marks)

Question text not reproduced: the examination questions are © Engineers and Geoscientists BC. Open the official past paper (linked at the top of this page) to read the question, then follow the worked solution below.

Surety bonds and construction liens are the two principal devices by which the construction industry protects itself against a party that cannot or will not perform. They work in opposite directions — a bond protects the owner looking down the contractual chain, a lien protects those who supplied work and material looking up it — and a candidate is expected to see both the difference between the two bond types and the very different legal machinery of the lien.

Surety bonds are not insurance. The distinction governs everything that follows. Insurance is a two-party contract in which the insurer accepts a risk of fortuitous loss and expects to pay claims out of pooled premiums. A bond is a three-party undertaking: the principal (the contractor), the obligee (the owner), and the surety, which guarantees the principal's performance to the obligee. The surety underwrites the contractor's character, capacity and capital rather than a random hazard, expects no losses, and — critically — holds a right of indemnity against the contractor for everything it pays out. The premium is therefore a fee for the extension of credit, not a pooling of risk, and a contractor whose bond is called does not walk away: it owes the surety.

The bid bond. Submitted with the tender, a bid bond guarantees that if the bid is accepted the contractor will enter into the contract at the price tendered and will furnish whatever performance and payment security the tender documents require. Its penal sum is customarily 10 % of the bid, and in Canada the standard instrument is CCDC 220. Its life is short: it expires when the contract is executed, when the tender is rejected, or when the tender validity period lapses. If the successful bidder refuses to sign, the surety is liable for the owner's damages, measured as the difference between that bid and the next acceptable one, up to the penal sum — so a contractor who discovers an error after opening cannot simply withdraw, which is precisely the discipline the bond is meant to impose. Its purpose is to protect the integrity of the tendering process itself, and it does a second job as well: because the surety will not issue a bid bond to a contractor it would not also bond for performance, the bid bond pre-qualifies bidders before the owner ever reads the prices.

The performance bond. Furnished after award, a performance bond guarantees completion of the work in accordance with the contract documents. Its penal sum is normally 50 % or 100 % of the contract price, the Canadian standard form is CCDC 221, and it runs from execution through to the end of the warranty or maintenance period. If the contractor is declared in default and the contract terminated, the surety may choose to finance the original contractor to completion, arrange a completing contractor by tender, complete the work itself, or pay the owner its damages up to the penal sum. Because the exposure is the whole contract rather than a bid differential, the underwriting is far more searching and the premium far larger — typically well under one per cent of the contract value, but rising as the contractor's capacity is stretched. It is almost always issued together with a labour and material payment bond, which protects subcontractors and suppliers rather than the owner and, in doing so, protects the owner indirectly by keeping liens off the property.

Construction liens — purpose. The lien remedy exists because of a structural unfairness in construction. A subcontractor or supplier improves land it does not own, under a contract with someone who is not the owner, and once the material is in place it cannot be repossessed; if the general contractor becomes insolvent, the owner has the benefit of the work and the trade has nothing but an unsecured claim against an empty company. Lien legislation answers this by giving anyone who supplies work, services or material to an improvement a charge against the land itself, so that the value they added stands as security for payment. The remedy is entirely statutory and provincial, and the terminology differs across the country: British Columbia's Builders Lien Act, Alberta's Prompt Payment and Construction Lien Act, and Ontario's Construction Act (formerly the Construction Lien Act, and before that the Mechanics' Lien Act, which is the older name the question uses). The differences are of detail and deadline; the architecture is common.

Construction liens — mechanics. The machinery has three parts, and they interlock. The first is the holdback. The owner must retain a statutory percentage of the value of the work — 10 % in British Columbia, 10 % in Ontario — from every payment, and hold it for the statutory lien period. The holdback is a fund, separate from any contractual retention, and it caps the owner's exposure: an owner who has properly retained and properly released the holdback is liable to lien claimants only to the extent of that fund, even if the claims exceed it. The second is filing. A claimant registers a claim of lien in the land title office within the statutory period — in British Columbia, 45 days after the certificate of completion for that claimant's contract is issued, or after the head contract is completed, abandoned or terminated — and that registration attaches the claim to the title. The third is perfection and enforcement. The claim expires unless the claimant commences an action and registers a certificate of pending litigation within a further year in British Columbia; if it is enforced to judgment the land may be sold to satisfy the claim, although in practice the lien is almost always resolved before that point.

What makes the remedy effective is not the eventual sale but the immediate commercial pressure. A registered lien clouds the title, which stops a sale, blocks a mortgage advance and puts the owner in default under its construction financing, so the owner has a powerful incentive to see the claim resolved. Against that leverage the statute provides counterweights: the owner may pay the amount claimed into court and obtain an order discharging the lien from title, freeing the property while the dispute is litigated on the money; a lien that is exaggerated or filed without reasonable basis exposes the claimant to damages; and the deadlines are short and strictly enforced, so a claimant who files a day late has no remedy at all. For the practising engineer administering a contract, the operative duties are concrete: certify progress accurately, verify that the statutory holdback is actually being retained rather than merely recited, do not certify substantial performance without understanding that the certificate starts the lien clock running, and confirm before releasing the holdback that the lien period has run out and no claims are registered.