Subcontractor Management Playbook

Overview

Subcontractors perform 60-80% of the work on most commercial construction projects. Your ability to find, qualify, contract, coordinate, pay, and close out subcontractors directly determines your project's success. A great sub makes you look brilliant. A bad sub can sink a project.

This playbook covers the entire subcontractor lifecycle — from the first time you hear about a sub to the final retainage release. Follow it consistently and you'll build a reliable network of quality subcontractors while avoiding the ones who cause problems.

Why Subcontractor Management Matters

Project outcomes depend on subs. When your subcontractors deliver quality work on time, your project succeeds. When they don't, you're the one explaining delays and defects to the owner.
Financial risk. Subcontractor default, payment disputes, and lien claims are among the top financial risks on any construction project.
Legal exposure. You're responsible for your subcontractors' safety, their workers' classifications, and their compliance with contract requirements.
Reputation. Your reputation with owners, architects, and the community is only as strong as the subcontractors you put on the job.
Repeat business. Good subcontractor relationships are a competitive advantage. Subs who trust you give you better pricing, prioritize your projects, and help solve problems instead of creating them.

The Subcontractor Lifecycle

The subcontractor relationship follows six distinct phases. Each phase has its own processes, documentation, and potential pitfalls.

┌─────────────────┐     ┌─────────────┐     ┌──────────────┐
│ 1. Prequalify    │────▶│ 2. Bid       │────▶│ 3. Contract   │
└─────────────────┘     └─────────────┘     └──────────────┘
                                                    │
                                                    ▼
┌─────────────────┐     ┌─────────────┐     ┌──────────────┐
│ 6. Closeout      │◀────│ 5. Payment   │◀────│ 4. Execute    │
└─────────────────┘     └─────────────┘     └──────────────┘

Phase 1: Prequalification

Before you invite a subcontractor to bid, you need to know they can actually perform the work. Prequalification is your risk management step — it's much easier to avoid a bad sub than to deal with one mid-project.

Gather Information

Request the following from every new subcontractor:

Company information — legal name, address, contact information, years in business, owner/principal names
Licenses — current state and local contractor licenses (verify they're valid and in good standing)
Financial capacity — bank references, bonding capacity letter, financial statements (for larger subcontracts)
Insurance — current certificates of insurance (GL, workers' comp, auto, umbrella) with required coverage limits
Safety record — EMR (Experience Modification Rate), OSHA 300 logs for the past three years, safety program documentation
References — three to five recent project references with GC contact information
Work history — list of similar projects completed in the past three to five years

Verify Insurance

Confirm coverage types and limits meet your contract requirements
Verify the policy is current and hasn't lapsed
Request to be listed as additional insured
Set up calendar reminders to verify renewal before expiration
Don't accept certificates from the sub — get them directly from their insurance agent

Check References

Actually call the references. Ask about:

Quality of work
Schedule performance — did they finish on time?
Communication and responsiveness
How they handled problems
Would you hire them again?

Evaluate EMR

The Experience Modification Rate reflects the sub's safety track record:

Under 1.0 — better than average safety record
1.0 — average
Over 1.0 — worse than average safety record
Many GCs and owners require EMR under 1.0 to work on their projects
An EMR over 1.2 is a significant red flag

Make the Decision

Based on your evaluation, classify the subcontractor:

Approved — meets all criteria, eligible to bid
Conditionally approved — minor issues to address (e.g., needs to increase insurance limits)
Not approved — fails to meet minimum criteria

Maintain an Approved Sub List

Keep a database of prequalified subcontractors organized by trade:

Update annually — re-verify insurance, licenses, and EMR
Track performance on completed projects
Remove subs who consistently underperform
Add new subs as you discover them

Phase 2: Bidding

A well-managed bid process gets you competitive pricing, clear scope, and fewer surprises during construction.

Send Bid Package

Include everything the sub needs to provide an accurate bid:

Invitation to bid with clear submission deadline, format requirements, and contact information
Scope of work — detailed description of what's included and excluded
Drawings and specifications — the relevant sheets and spec sections
Contract terms — the subcontract form they'll be signing (so they can factor any onerous terms into their price)
Schedule — the project schedule showing their work windows
Site logistics — access, staging, hoisting, parking, and coordination requirements
Special requirements — prevailing wage, safety, MBE/WBE goals, etc.

Receive and Track Bids

Log every bid received with date, time, amount, and any qualifications or exclusions
Follow up with invited subs who haven't responded — a quick call often brings in additional bids
Acknowledge receipt of every bid

Compare Bids

Create a bid comparison (bid tab) that lines up the bids scope by scope:

Normalize the bids — make sure you're comparing equivalent scopes
Identify exclusions in each bid and price them
Note all qualifications and alternates
Lowest price isn't always best — factor in the sub's track record, schedule capability, and your working relationship
Watch for bids that are significantly lower than the rest — they may have missed scope or made a mistake

Award

Notify the winning sub promptly (phone call, followed by written notice)
Notify unsuccessful bidders — maintain relationships for future projects
Document the selection rationale, especially if you didn't select the lowest bidder

Phase 3: Contracting

A clear, complete subcontract prevents disputes and protects both parties. Don't start work on a handshake.

Prepare the Contract

Every subcontract should include:

Scope of work — detailed description referencing specific drawing sheets and spec sections
Contract amount — lump sum, unit price, or T&M with rates and not-to-exceed
Schedule — start date, completion date, and key milestones
Payment terms — billing schedule, retainage percentage, payment timeline
Change order process — how changes are requested, approved, and priced
Insurance requirements — coverage types, limits, and additional insured status
Safety requirements — your safety program, reporting obligations, and consequences for violations
Indemnification — hold harmless and indemnity provisions
Default and termination — what constitutes default and the remediation process
Dispute resolution — mediation, arbitration, or litigation
Closeout requirements — what the sub must deliver at project completion
Flow-down clauses — prime contract provisions that apply to the sub

Execute the Contract

Both parties sign before work begins — no exceptions
Distribute copies to both parties
Verify insurance certificates are current and name you as additional insured
Issue a notice to proceed with a confirmed start date

Set Up in System

Enter the subcontract in your accounting/project management system
Set up the schedule of values for progress billing
Create cost codes for tracking the sub's costs
Add the sub to project communication distributions

Phase 4: Project Execution

This is where good subcontractor management pays off — or where poor management creates problems.

Pre-Construction Meeting

Hold a kick-off meeting before the sub mobilizes:

Review the scope of work in detail
Walk through the schedule and key milestones
Discuss safety requirements and site-specific hazards
Review logistics — access, staging, laydown, material storage
Establish communication protocols — who contacts whom, and how
Review the payment process — when to submit, what to include
Discuss quality expectations and inspection requirements
Distribute site-specific safety orientation requirements

Coordinate Schedule

Include the sub in schedule updates and look-ahead meetings
Provide at least two weeks' notice for schedule changes
Coordinate with other subs working in the same areas
Track the sub's progress against the baseline schedule
Address schedule slippage immediately — don't let small delays compound

Monitor Performance

Track throughout the project:

Quality — are they meeting spec requirements and your quality standards?
Schedule — are they hitting milestones and maintaining adequate manpower?
Safety — are they following your safety program and reporting incidents?
Housekeeping — are they maintaining their work areas?
Communication — are they responsive and collaborative?
Documentation — are they submitting required paperwork on time?

Manage Changes

Changes are inevitable. Handle them proactively:

Document every change with a written change order request
Get pricing before authorizing the work (no "go ahead and we'll figure out the price later")
Track pending changes and their impact on the schedule
Process approved change orders promptly — don't let them pile up
Never direct a sub to perform work outside their contract scope without documentation

Phase 5: Payment

Fair, timely payment is the foundation of good subcontractor relationships. Subs who trust you to pay on time give you better prices and better performance.

Receive Pay Application

Establish a consistent billing date (e.g., the 25th of each month)
Require the sub to submit a pay application with:
- Schedule of values showing percent complete by line item
- Backup documentation for stored materials
- Signed lien waiver for the previous payment (conditional or unconditional per state law)
- Certified payroll if required

Approve or Reject

Review the pay application within five business days
Verify percent complete against field observations
Confirm stored materials are properly documented and insured
Check that lien waivers from lower-tier subs are included if required
Reject or reduce line items that are overbilled — document the reason
Approve and forward to accounting for payment

Process Payment

Pay within the timeline specified in your contract (typically 30 days from approval)
Many states have prompt payment laws — know your obligations
Deduct retainage per the contract terms
Issue joint checks if required by your prime contract or if the sub has payment issues with their suppliers
Document every payment with check number, date, and amount

Track Retainage

Maintain a retainage ledger for each subcontract
Release retainage per the contract terms (typically at substantial completion of the sub's scope)
Require final lien waivers before releasing retainage
Don't hold retainage as leverage — it damages relationships and may violate prompt payment laws

Phase 6: Closeout

A clean closeout protects you, satisfies the owner, and leaves the sub relationship on a positive note.

Final Inspection

Walk the sub's completed work with them present
Create a punch list of deficiencies
Set a clear deadline for punch list completion
Re-inspect after corrections to verify completion

Punch List

Organize punch items by location and trade
Assign each item to the responsible sub with a completion date
Track status — open, in progress, completed, verified
Don't release final payment until all punch items are verified complete

Final Payment

Process final retainage release after all conditions are met:
- All punch items completed and verified
- All closeout documents received
- Final lien waiver received (unconditional)
- No outstanding claims or disputes
Issue final payment promptly — the sub has earned it

Manual Process: Spreadsheet Tracking

If you manage subs with spreadsheets, set up these tracking sheets:

Approved Sub List

Trade	Company	Contact	Phone	License #	Insurance Exp	EMR	Rating
Electrical	ABC Electric	John Smith	555-0101	E-12345	12/31/2024	0.85	A
Plumbing	XYZ Plumbing	Jane Doe	555-0202	P-67890	06/30/2025	0.92	B+

Bid Tracking

Project	Trade	Sub 1	Sub 2	Sub 3	Award	Notes
Main St	Electrical	$450K	$475K	$520K	Sub 1	Includes fire alarm
Main St	Plumbing	$380K	$365K	$410K	Sub 2	Sub 2 has better track record

Payment Tracking

Sub	Contract	Approved COs	Revised Contract	Billed	Paid	Retainage	Remaining
ABC Electric	$450,000	$25,000	$475,000	$350,000	$315,000	$35,000	$125,000

Digital Process: CRM and Sub Management System

Construction-specific software platforms offer significant advantages:

Capabilities

Prequalification management — automated requests, tracking, and renewal reminders
Bid management — send invitations, receive bids, and create bid tabs electronically
Contract management — digital contract execution, change orders, and document storage
Payment processing — electronic pay applications, approval workflows, and lien waiver tracking
Performance tracking — rate subs across projects and build a historical performance database
Communication logging — all communication is tracked and searchable

Tools to Consider

Procore — comprehensive project management with sub management features
Textura/Oracle — payment management and compliance
GCPay — subcontractor payment management
BuildingConnected — bid management and prequalification
Contractor Foreman — affordable all-in-one option for smaller contractors

Common Mistakes

1. Skipping Prequalification

You're in a rush to get bids out, so you skip the prequalification step and invite a sub you've never worked with. They submit the lowest bid, you award them the work, and three months later they default — leaving you to find a replacement at a premium. Prequalification takes time upfront but saves enormous pain later.

2. Vague Scope of Work

"Install electrical per plans and specs" is not a scope of work. Ambiguous scope leads to disputes about what's included, change order battles, and finger-pointing when something falls through the cracks. Be specific about inclusions, exclusions, and interfaces with other trades.

3. Starting Work Without a Contract

"We'll get the paperwork done later — just get started." This is how disputes turn into lawsuits. Never allow work to begin without an executed subcontract. If timing is critical, at minimum issue a letter of intent that covers scope, price, and key terms while the full contract is finalized.

4. Ignoring Performance Problems

You notice a sub's quality is slipping or they're falling behind schedule, but you don't address it because the conversation is uncomfortable. Small problems become big problems fast. Address performance issues immediately, document the conversation, and follow up in writing.

5. Late Payments

Consistently paying subs late destroys trust and motivation. Subs talk to each other — a reputation for slow payment means higher prices, lower priority, and difficulty attracting quality subcontractors. Pay on time, every time.

6. No Documentation of Changes

You verbally direct a sub to perform extra work, then dispute their change order because "we never agreed to that." Without written documentation, you're both guessing — and the sub usually has the stronger legal position. Document every change in writing before the work is performed.

The Bottom Line

Subcontractor management is relationship management backed by process and documentation. Build a network of reliable, quality subcontractors and treat them fairly — pay on time, communicate clearly, and resolve problems professionally. In return, you'll get better pricing, better performance, and partners who help you deliver successful projects.

Follow the six phases consistently: prequalify, bid, contract, execute, pay, close out. Skip any phase and you're introducing risk that will eventually catch up with you. The best general contractors aren't just good at managing projects — they're great at managing the subcontractors who actually build them.

Resource	Link
Subcontractor Management Guide	Subcontractor Management
Subcontractor Prequalification	Prequalification
Subcontractor Qualification Checklist	Checklist
Subcontractor Agreement Generator	Generate Agreement
Backcharges Guide	Backcharges

Overview​

Why Subcontractor Management Matters​

The Subcontractor Lifecycle​

Phase 1: Prequalification​

Gather Information​

Verify Insurance​

Check References​

Evaluate EMR​

Make the Decision​

Maintain an Approved Sub List​

Phase 2: Bidding​

Send Bid Package​

Receive and Track Bids​

Compare Bids​

Award​

Phase 3: Contracting​

Prepare the Contract​

Execute the Contract​

Set Up in System​

Phase 4: Project Execution​

Pre-Construction Meeting​

Coordinate Schedule​

Monitor Performance​

Manage Changes​

Phase 5: Payment​

Receive Pay Application​

Approve or Reject​

Process Payment​

Track Retainage​

Phase 6: Closeout​

Final Inspection​

Punch List​

Final Payment​

Archive​

Manual Process: Spreadsheet Tracking​

Approved Sub List​

Bid Tracking​

Payment Tracking​

Digital Process: CRM and Sub Management System​

Capabilities​

Tools to Consider​

Common Mistakes​

1. Skipping Prequalification​

2. Vague Scope of Work​

3. Starting Work Without a Contract​

4. Ignoring Performance Problems​

5. Late Payments​

6. No Documentation of Changes​

The Bottom Line​

Related Resources​