Bid bonds and surety in Alberta: a contractor's primer

Sooner or later, a public tender you want to bid will ask for bonding — and if you don't have a surety relationship in place, you can't respond, no matter how competitive your number is. Bonding is one of the quiet gates that decides which Alberta public work you can actually pursue. This primer explains what the bonds are, how surety works, and how to get set up before a deadline forces the issue.

It's a companion to our complete guide to public construction bidding in Alberta and sits alongside COR certification as a core eligibility requirement.

What a bond actually is (and isn't)

A surety bond is not insurance. Insurance is a two-party deal that pools risk and expects to pay claims. A bond is a three-party guarantee — between you (the principal), the project owner (the obligee), and the surety company — and the surety expects not to pay. If it does pay out on your behalf, it will come after you to be repaid. In practice that means a surety underwrites your company much like a lender does: it is vouching for your ability to finish the work, and it wants its money back if you don't.

That distinction matters because it shapes how you qualify. You don't "buy" a bond off a shelf; you establish a bonding facility by demonstrating your company is good for the work.

The three bonds you'll meet

Most Alberta public construction tenders reference one or more of the standard CCDC bond forms:

1. Bid bond (CCDC 220). Submitted with your bid. It guarantees that if you're selected, you'll enter the contract at your bid price and provide the required performance security. Commonly 10% of the bid amount. If you win and then walk away, the surety covers the owner's cost to go to the next bidder — and bills you.
2. Performance bond (CCDC 221). Provided on award. It guarantees you'll complete the work according to the contract. Commonly 50% or 100% of the contract value. If you default, the surety arranges completion.
3. Labour and material payment bond (CCDC 222). Also on award, often alongside the performance bond. It guarantees that your subcontractors and suppliers get paid. Commonly 50% of the contract value. It protects the owner from liens and unpaid-sub claims.

Percentages and which bonds are required vary by tender — always confirm the exact requirements in the solicitation documents.

Bid security alternatives

Not every tender demands a bid bond specifically. Many accept bid security in other forms — a certified cheque, bank draft, or irrevocable letter of credit — in lieu of a bid bond. These tie up cash or bank credit, though, where a bid bond does not. For anything but the smallest, occasional job, an established bonding facility is the more practical path.

How you qualify for bonding

A surety underwrites your company on what the industry calls the three Cs: capital, capacity, and character. Expect to provide:

• Financial statements — ideally review-engagement or audited, not just internally prepared. Your working capital and equity largely set your limits.
• A work-on-hand (WIP) schedule — current contracts, percent complete, and remaining costs, so the surety can see your backlog.
• Bank information — a confirmed operating line signals liquidity.
• Experience and references — a track record on similar-size, similar-scope work.
• Management depth — who runs operations, estimating, and finance.

This is why bonding rewards clean books and continuity. A contractor with tidy, accountant-prepared financials and a sensible backlog gets more capacity than one with the same revenue and messy records.

Single-job limit vs. aggregate capacity

Two numbers define your facility, and both gate which tenders you can chase:

• Single-job limit — the largest individual contract the surety will bond. A tender above this is simply out of reach until your capacity grows.
• Aggregate limit — the total bonded work the surety will carry across all your active projects at once. You can hit this even with small jobs if you have several running.

Knowing both before you bid saves you from pursuing work you can't actually bond — one of the more demoralizing ways to lose a tender after winning it.

How to set it up (before you need it)

1. Work with a surety broker, not a generic insurance agent. A specialist surety broker places your account with the right surety and advocates for your capacity.
2. Get your financials in order. If you've only ever done internal statements, talk to your accountant about a review engagement — it often unlocks meaningfully more capacity.
3. Build the relationship early. Establish the facility when you don't need it. Sureties extend more to companies they've known through a full year-end or two than to a stranger with a deadline.
4. Use the standard CCDC forms. Alberta public owners expect CCDC 220/221/222; your surety issues them routinely.

How bonding shows up in your bid strategy

Bonding sits alongside COR, insurance, and WCB clearance as the eligibility layer that decides a large share of public bids before pricing is ever considered. Mandatory bid security at submission, performance and L&M bonds on award, and your bonding capacity as a hard ceiling on contract size — get these sorted before you invest estimating hours, not after.

Cornerstone Contracts surfaces the bonding and security requirements found in each Alberta tender it matches to your profile, so you see whether a job is within your capacity before you commit to the bid. You can start free and review your matched Alberta opportunities, with their compliance requirements flagged, today.

This guide is general information, not financial, legal, or surety advice. Bond forms, percentages, and requirements vary by tender — always confirm with your surety broker and the official tender documents.