Subcontractor prequalification: what to ask before you award

Why prequalify at all

Most subcontractor problems — a sub who walks off the job, a crew without proper coverage, a safety incident — were visible before the contract was signed. Prequalification is the step where you look for them.

Done well, it shortens the bid list to firms that can actually carry the work, and it means the insurance and safety paperwork is already in hand when the subcontract is issued.

The questions worth asking

• Company basics — legal entity name, years in business, ownership, and the trades they self-perform.
• Capacity — largest single contract completed, current backlog, and typical crew size.
• Financial standing — bonding capacity and surety contact, or recent financial statements for larger packages.
• Safety record — experience modification rate (EMR), recordable incident history, and a written safety program.
• Insurance — a sample certificate showing the limits they normally carry, so you know early whether they can meet your requirements.
• Licensing — trade and contractor licenses for the jurisdictions you work in.
• References — two or three recent general contractors you can actually call.

Keeping it light enough that good subs finish it

A 20-page prequalification form sent as a PDF tends to come back half-filled or not at all — and the subs most likely to skip it are the busy, good ones.

1. 1Ask only what you will actually use to decide. Every question should map to a pass, fail, or follow-up.
2. 2Let subs upload documents they already have — a current COI, a safety manual, a license — rather than retyping them into a form.
3. 3Reuse the answers. Once a sub is prequalified, carry their documents into the project instead of asking again for every job.
4. 4Set a renewal interval, usually annual, so prequalification does not quietly go stale.

Frequently asked questions

Keep reading

• ComplianceSubcontractor onboarding: getting a new sub ready for siteThe days between award and mobilization are where missing paperwork gets waved through. A simple onboarding sequence that gets every document in before the first crew arrives.
• ComplianceSubcontractor compliance checklistA practical checklist of what general contractors should collect from subcontractors before mobilization — insurance, endorsements, licences, safety records, and contracts — and when to re-check.
• Document collectionHow to Ask Clients to Resubmit Incorrect DocumentsWhen a client sends the wrong file, a vague request to “try again” creates more work for everyone. Use a clear explanation, a precise replacement request, and one upload destination to get usable documents with less back-and-forth.