Contractor Guide

How to Manage Subcontractors

Learn how to manage subcontractors with clear scope, schedules, RFIs, submittals, change orders, payment records, and project communication.

Managing subcontractors is mostly about clarity. The general contractor or hiring contractor needs clear scope, schedule expectations, documentation, communication, and payment records. The subcontractor needs the same things, plus a reliable way to raise questions before field decisions become expensive.

Good subcontractor management does not mean micromanaging every task. It means building a workflow where expectations are visible and decisions are documented.

Start with clear scope

Scope problems create many subcontractor disputes. Before work starts, define what is included, what is excluded, and what assumptions are being made.

Useful scope details include:

  • Trade or work category
  • Drawings, specs, or proposal references
  • Included labor and materials
  • Exclusions
  • Allowances
  • Schedule windows
  • Required inspections
  • Cleanup expectations
  • Documentation required for payment

If the scope is vague, the schedule and budget will be harder to manage later.

Confirm schedule expectations

Subcontractors need to know more than the start date. They need to know the sequence of work, predecessor tasks, expected duration, site access requirements, and what happens if the job is not ready.

Schedule coordination should answer:

  • When can the sub start?
  • What work must be complete first?
  • Who confirms the site is ready?
  • What crew size is expected?
  • What are the milestone dates?
  • Who should be contacted if the sub is delayed?

For busy trades, unclear scheduling often leads to missed windows. Once a crew leaves for another job, getting them back may be difficult.

Keep communication tied to the project

Texts and calls are useful in the moment, but they are weak as the only project record. Important subcontractor communication should be tied back to the project.

That includes scope clarifications, schedule changes, field conditions, approvals, photos, and decisions that may affect cost or time. If the project later has a dispute, the team should not have to search personal phones to understand what happened.

Use RFIs for unanswered questions

When drawings, specifications, site conditions, or scope responsibilities are unclear, use an RFI-style process. The question should be specific, assigned to the person who can answer, and tracked until closed.

An RFI should include the question, project reference, needed response date, priority, and supporting photos or sketches when useful. The response should be recorded in the project file, especially if it affects cost or schedule.

The goal is to avoid verbal direction becoming the only record.

Use submittals for approvals

Submittals are different from RFIs. A submittal presents a product, shop drawing, material, fixture, or proposed method for approval before the work proceeds.

Subcontractors should know what submittals are required, who reviews them, and when they are due. Missing or late submittals can delay procurement and installation even when the field crew is ready.

Keep the status clear: submitted, under review, approved, approved as noted, rejected, or revise and resubmit. Exact wording can vary, but the team needs to know whether the sub can move forward.

Track change orders separately

Subcontractor changes should not live only in a text thread. If the work changes, create a change record that shows the reason, scope, cost, schedule impact, and approval status.

This protects both sides. The subcontractor has a record of authorized extra work, and the contractor has a record showing why project cost changed.

Do not wait until final billing to sort out changes. By then, the details are harder to verify.

Connect payment to documentation

Subcontractor payment should be tied to the agreement and the work record. Depending on the project, that may include signed scope, completed milestones, approved change orders, lien waivers, insurance documents, inspection results, or closeout items.

Payment delays often come from missing paperwork or unclear approval. Make the requirements clear before the invoice arrives.

Review performance after the job

After a project, review subcontractor performance while the details are still fresh. Consider quality, schedule reliability, communication, change handling, documentation, and customer impact.

This does not need to be formal for every small job. Even a short internal note can help future estimating and subcontractor selection.

Soft next step

If subcontractor coordination is part of a broader software review, compare platforms that support project communication and trade workflows, starting with Conduit vs ServiceTitan.

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