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Commercial Subcontractor Qualification SOP (SOQ + Pre-Bid)

SOP Operations Updated Jun 19, 2026

Why this matters

On a major commercial project, the subcontractor who walks off mid-rough-in or fails inspection three times running can cost more than your project profit. Residential trade-business owners scaling into commercial inherit a network of friend-of-friend subs who were fine for residential turnover work but fold under prime contract paperwork, insurance limits, and schedule discipline. The Statement of Qualifications (SOQ) and pre-bid qualification process is how commercial owners and GCs filter subs before pricing matters. Adopting the same discipline internally is how you decide which of your subs you can safely put on a commercial job, and which you keep on residential change-outs.

When this SOP fires

  • Any commercial subcontract above the threshold defined by your CFO and risk manager
  • Any project requiring a payment bond, performance bond, or Builder's Risk policy
  • Any project under a prime subcontract that requires you to flow down qualification requirements
  • Any project requiring published prevailing wage (Davis-Bacon, state prevailing wage)
  • Any project on a federal, state, municipal, or institutional (REIT, university, hospital) site

Stage 1: Annual SOQ collection (off-bid)

Maintain an SOQ package for every commercial-capable sub on file, refreshed annually. Required documents:

  • Current Certificate of Insurance with limits meeting your insurance requirements matrix
  • Current state contractor license verification (active status, classification adequate for scope)
  • W-9 with current legal entity name and FEIN
  • Workers' Compensation declarations page with experience modification rate (EMR)
  • Three project references for similar scope completed in the past 24 months
  • Three trade reference contacts (suppliers, GCs, owners)
  • Bank reference letter
  • Current financial statement (compiled, reviewed, or audited; tier depends on contract size)
  • DBE / MBE / WBE / SDVOSB certification if applicable
  • Drug testing and background check policy
  • Safety program documentation (written safety manual, OSHA training records, EMR)
  • DOT registration if the sub operates vehicles over 10,001 pounds GVWR

Score and rank annually. Categorize subs:

  • Tier 1: cleared for any commercial project, any prime
  • Tier 2: cleared for projects under a defined cap, with restrictions
  • Tier 3: residential or light commercial only, do not put on prime contract work

Stage 2: Project-specific pre-bid qualification

Before issuing an invitation to bid (ITB) to your subs on a specific project, layer in project-specific requirements:

  • Verify insurance limits meet THIS project's prime contract flowdown
  • Verify the sub's bonding capacity if the prime requires subcontract bonds
  • Confirm the sub's project schedule capacity (current backlog, available crew, mobilization window)
  • Confirm the sub has not been debarred or suspended (SAM.gov for federal work, state debarment lists for public works)
  • Re-verify the contractor license is in good standing
  • Re-pull the EMR; an EMR over 1.00 indicates above-average loss history and may disqualify under owner safety requirements

Stage 3: Bid-day qualification (during ITB)

Issue the ITB with a Project-Specific Information form requiring the sub to acknowledge:

  • Scope of work understood
  • Drawings and specifications acknowledged
  • Required schedule acknowledged
  • Prime contract flowdown terms (insurance, indemnity, bonding, lien waivers, retainage) acknowledged
  • Davis-Bacon or state prevailing wage acknowledged if applicable
  • Any specialized certifications (OSHA 30, confined space, welding certification) acknowledged

Bids missing the qualification acknowledgment are non-responsive. Do not let price seduce you into accepting a non-responsive bid; the holes show up later as change order claims.

Stage 4: Award qualification

Before issuing a subcontract:

  • Verify the COI matches the prime contract requirements verbatim (additional insured language, waiver of subrogation, primary and non-contributory, per-project aggregate)
  • Verify the W-9 entity matches the COI named insured
  • Execute a Master Subcontract Agreement (MSA) if you do not already have one on file
  • Execute a Project-Specific Work Order or Subcontract referencing the MSA
  • File the COI and license verification in the project insurance file
  • Add the sub to your project safety roster

Stage 5: Onboarding before mobilization

  • Schedule project-specific safety orientation
  • Verify field personnel OSHA 10 or OSHA 30 cards as required
  • Confirm site superintendent and emergency contact
  • Issue project access credentials
  • Document closeout requirements (as-builts, O&M manuals, training, attic stock)

Insurance limit matrix (typical commercial baseline)

Coverage Typical project requirement
Commercial General Liability per occurrence $1,000,000 minimum, often $2,000,000
CGL aggregate (per project recommended) $2,000,000 minimum
Products and completed operations matched to CGL aggregate, 2 years tail minimum
Automobile Liability $1,000,000 combined single limit
Workers' Compensation statutory
Employer's Liability $1,000,000 / $1,000,000 / $1,000,000
Umbrella / Excess Liability $2,000,000 to $10,000,000 depending on project size
Professional Liability (if design assist) $1,000,000 minimum
Pollution Liability (if applicable) $1,000,000 minimum
Builder's Risk required at prime contract level

Flow down the prime contract requirements exactly. Do not interpret or summarize them in your subcontract; reproduce them verbatim and require the sub to comply.

A subcontractor named on the project COI without the correct additional insured language (commonly ISO CG 20 10 for ongoing operations and CG 20 37 for completed operations) provides no real coverage to your business as the upstream contractor. Train your AP staff to flag any COI lacking both endorsement forms by number; the form name alone is not enough.

Disqualification triggers

Disqualify a sub from a project (or move down a tier annually) if any of the following apply:

  • EMR exceeds the owner's threshold (commonly 1.00, sometimes 0.90 on federal work)
  • Open OSHA citation on similar scope within 24 months
  • License lapsed or suspended within 12 months
  • Bankruptcy filing within 36 months
  • Material litigation with a prior prime contractor or owner
  • Failed reference check (two or more references will not give a positive recommendation)
  • Refusal to sign the MSA or accept prime contract flowdown
  • Refusal to provide current financial statement at the required tier

References

  • ConsensusDocs 221 Contractor's Statement of Qualifications for a Specific Project
  • AIA A305 Contractor's Qualification Statement
  • AIA A401 Standard Form of Agreement Between Contractor and Subcontractor
  • ISO Commercial General Liability endorsement forms CG 20 10 and CG 20 37
  • SAM.gov System for Award Management (federal debarment and exclusion)
  • AGC Document 200 Standard Form of Agreement and General Conditions
  • OSHA 29 CFR 1926 (Construction Industry Standards)

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