Where construction tenders are published
Employers choose their own channels, so a contractor who wants a steady flow of opportunities usually monitors several.
| Source | Who publishes there | Note |
|---|---|---|
| eTenders Portal | Public-sector organisations at national, provincial and local level | Operated by National Treasury. Check each notice for the organisation’s own submission rules. |
| Organisation websites and notices | Municipalities, provincial departments, state-owned entities and water boards | Many organisations also publish on their own sites and in the press. |
| Private clients and developers | Property developers, mining, industrial and agricultural clients | Often by invitation, based on relationships and prior performance. |
| Main contractors | Subcontract packages on larger projects | Usually by invitation, after a main contractor has won its own tender. |
| Third-party tender alert services | Services that collect and send notices by trade, region or value | Independent businesses. Check what they cover and what they cost. |
Get ready before you bid
Most tender documents assume you are already set up. Having the following in place before a tender is issued gives you time to read, price and submit properly.
- CIDB registration
- Public-sector construction tenders commonly require a registered grading designation for the class of works. See the CIDB grading guide and registration documents.
- Supplier and tax compliance
- Public-sector buyers commonly check supplier registration and tax compliance. The tender document checklist lists the usual items.
- Company and workplace compliance
- Company registration documents, B-BBEE evidence where preference points apply, and workplace compensation good standing are commonly requested.
- Financial standing
- Recent financial statements and a bank letter are commonly asked for, and bid security may be required.
- Track record
- Evidence of similar projects, references and key personnel experience supports the functionality and capacity assessment.
Choose tenders you can realistically win and deliver
A tender you cannot deliver costs time and, if won, can cost much more. Before you commit to preparing a bid, check the following.
- The required grade and class of works match your registration.
- The contract value is within your financial and delivery capacity, including cash flow while waiting for payment.
- The location, programme and resources are realistic for your current work.
- You understand the evaluation method, for example how price, preference points and functionality are weighed.
- You can meet any compulsory briefing or site meeting requirement.
- You know what bid security, performance security and insurance will be required, and what each will cost.
Preparing a compliant bid
Read the whole tender
Read the invitation, conditions of tender, contract data and returnable schedule before you start pricing. Note every document you must return.
Attend any compulsory briefing
If a briefing or site inspection is compulsory, missing it can disqualify you.
Raise queries in time
Submit clarification questions by the deadline and keep the written answers, which usually form part of the tender.
Price and plan
Price from your own costs, supplier and subcontractor quotes, and a programme and method statement you can deliver.
Plan insurance and security early
Ask what insurance and guarantees will be required if you win, and get indications of cost and timing. Start with insurance after winning a tender and the guarantee pages if bid security is needed.
Assemble the returnable documents
Complete every form, sign where required, and check that certificates and letters are current and in the required form.
Submit early
Allow time for delivery problems. Late tenders are normally rejected.
After you submit
Evaluation, clarification and negotiation follow, and if you are the preferred bidder the employer will issue an award. At that point the insurance and security requirements stop being theoretical. You may have to provide a performance guarantee and evidence of insurance before you can start, so it is worth discussing them with us while the bid is still being evaluated.
Common tender pitfalls
- Missing a mandatory document or form.
- Out-of-date certificates, letters or declarations.
- Pricing before reading the contract data and special conditions.
- Leaving bid security until the last few days.
- Underestimating the cost and time of insurance and guarantees if the tender is awarded.
- Submitting late or to the wrong place.
Common questions
Are all construction tenders advertised publicly?
No. Public-sector organisations advertise many opportunities, but private clients and main contractors often invite a short list of bidders. Relationships, a good record and being registered and compliant all help you to be invited.
How early should I arrange bid security?
As early as you can. A guarantee provider needs time to assess an application, and we cannot promise that security can be arranged within a short tender period. See bid bonds.
Do I need insurance in place to submit a tender?
Some tenders ask for evidence or an undertaking at tender stage, but most require insurance after award, before you start work. Read the tender documents, and plan the cost of insurance into your price either way.
Preparing a tender?
Send us the tender’s insurance and security requirements and we will review them with you before you submit.
Get a QuoteAn enquiry does not put cover in place. Cover is subject to underwriting and policy terms.
Sources and further reading
- eTenders Portal (National Treasury) (opens in a new tab) — public-sector tender opportunities published at all levels of government (checked 12 October 2026)
- CIDB: Construction Industry Development Board (opens in a new tab) — official site, with links to the Register of Contractors and the public contractor search (checked 12 October 2026)
- National Treasury (opens in a new tab) — supply chain management and bidding documents
- National Treasury: Central Supplier Database (opens in a new tab) — supplier registration used by government departments and municipalities
Related reading
- Construction tender document checklistA construction tender document checklist that separates commonly requested company documents from contract-specific returnable documents, with notes on validity and insurance.
- What is the CIDB? Grading, grades and grading tableWhat the CIDB is, what CIDB grades 1 to 9 mean, how a grading designation such as 6CE is written, and the CIDB grading table, with sources checked against the CIDB website.
- Insurance after winning a tender: what to prepareWhat to do about insurance after a contract award: reading the contract’s insurance clauses, listing required covers and evidence, timing, and what to send your broker.
- Bid bondsWhat bid security is, when tenders ask for it and what to check before you submit.