How to read the tender security clause
Open the instructions to bidders and find the security section. It usually has three parts: what bid security is required and in what amount, what proof of final bonding is required with the bid, and what bonds the successful bidder must deliver after award. Send that section to us with the file. We tell you which documents your client needs and prepare them on the forms the owner named.
Watch for owner-specific forms. Some municipalities and institutions use their own bid bond or consent wording instead of CCDC 220. The surety has to issue on the form the owner will accept.
The four documents, side by side
| Document | What it is | Who signs | Binding? |
|---|---|---|---|
| Bid bond | Bid security. If the bidder refuses the contract after award, the owner claims the gap to the next bidder up to the bond amount. | Contractor and surety | Yes |
| Consent of surety (agreement to bond) | The surety's commitment to issue performance and payment bonds if the bidder wins and signs. | Surety only | Commitment by the surety, not a bond |
| Pre-qualification letter | Confirms the contractor is bondable at the RFQ or EOI stage. | Surety only | No |
| Certified cheque or letter of credit | Cash alternatives to a bid bond. Ties up the contractor's cash or credit line. | Contractor and bank | Yes |
An agreement to bond does not guarantee that the contractor will enter the contract or hold its price. It says the surety will stand behind the final bonds. A surety would step back only if material new information surfaced between bid and award.
Pre-qualification and bondability letters
Larger owners run a request for qualifications before the tender. At that stage they want a letter from the surety saying the contractor is bondable, often with a statement of single-job and aggregate capacity. The letter is not binding, but it is written from a real file. If your client wants to be on the shortlist, the underwriting needs to be done before the RFQ closes, not after.
The tender calendar, backwards
Work the dates in reverse. Closing date and time. Courier or e-bid upload cut-off. The day the surety needs the final bid amount to issue the bond. The day the facility must be in place. For a contractor with an existing facility, the bid bond and consent can issue once the bid amount is known. For a new account, allow time for the underwriter to review the file first.
Tenders that close electronically still need a properly executed bond document, and many require the surety's digital seal. Confirm the submission format with the owner early.
Mistakes that get bids disqualified
- Bid security in the wrong amount because the bid changed after the bond was issued.
- A consent of surety missing when the instructions asked for one.
- The owner's own form ignored in favour of a generic one.
- The wrong legal name of the bidder or the owner on the bond.
- A bond dated or delivered after the closing time.
Every one of these is preventable with the tender package in the surety's hands early. Send the whole thing, not a summary.
From tender to final bonds
If your client wins, the award letter triggers the performance bond and labour and material payment bond that the consent promised. The bid bond falls away. All of it comes from the same file, which is why the facility is the real asset.
