Finding Jobs

Working as a sub for general contractors

By DoneQuote Editorial · August 24, 2026 · 7 min read

To get subcontracting work from a general contractor, show that your trade, availability, insurance and paperwork fit their projects. Ask how to join the bid or vendor list, then use a manageable first assignment to establish a working relationship. Compare payment terms and retained amounts with the cash you need to perform the work.

Where sub work actually comes from

Use several routes to find GCs who need your trade:

  • The other subs on your current job. The electrician who watched you patch behind his rough-in is your best referral source: he knows what your work looks like and he stands next to the super twice a week.
  • The counter at your supply house. Inside sales people know which GC is short a framer before the GC admits it out loud. Ask the person who writes your tickets, by name.
  • Permit records. Check whether the building department publishes searchable permits with contractor details. Records may omit some work or lag current activity; confirm that a project is active.
  • A scheduled site introduction. Ask the superintendent when they can speak and follow site-access requirements.
  • Their plan room. Larger GCs send bid invites out of software — BuildingConnected, iSqFt, Procore, ConstructConnect. Ask the estimator to add you to the bid list for your scope, and ask which system it goes out from.

Small punch-list or overflow assignments can be a starting point. Accept only work you can price and perform under clear written terms.

The paperwork that has to clear before your name goes on the schedule

A super can like you and still not be able to use you, because the GC's own contract dictates who is allowed on site. Expect to produce most of this before the first work order:

DocumentWho it comes from
W-9 with the correct taxpayer identification numberYou — use the name and TIN required by IRS instructions
Certificate of insurance and required additional-insured endorsementsYour insurance agent
Workers' comp policy or a state exemption formYour carrier or your state comp board
Trade license in the right classificationYour state or local licensing board
Signed subcontract or master sub agreementThe GC
Safety orientation, sometimes OSHA 10 or 30Training provider

Two of those trip people up. The additional insured endorsement changes who the policy covers; a certificate alone does not provide that coverage — the GC wants to be covered under yours for your work, often with specific wording about ongoing and completed operations. For example, a GC may request $1 million per occurrence and $2 million aggregate. These are illustrative contract limits, not a universal requirement. Forward the request to your agent as written.

Workers' comp matters even if you work alone. Ask the GC and your insurance agent what policy or exemption evidence is required for your state and contract. Do not assume that working alone satisfies the buyer's insurance requirements. Use the IRS W-9 instructions for the separate tax-identification paperwork; an EIN is not required for every payee.

If you are not licensed for the scope, fix that first. See when you need a contractor license.

What the first job is really testing

The first job shows both your workmanship and how you coordinate with the GC:

  • You are on site the day and hour you said, and if you cannot be, they hear it the night before, not at 9 a.m.
  • You call the super the moment you find something — wrong rough-in, rot, a dimension that does not work — instead of fixing it yourself.
  • You never discuss price or schedule with the homeowner. Submit added scope, price and schedule impact to the authorized GC contact and record approval before doing the extra work.
  • Your invoice carries their job number and cost code, on their cycle, in the format they asked for.

After completing the assignment, ask whether the GC needs your trade on upcoming work and whether you can use the project as a reference.

Compare subcontracting and direct-work costs

Subcontracting can change selling time, payment timing and control of the schedule. The figures below are illustrative — one crew-week of interior work, made up to show the shape:

Direct to homeownerSub under a GC
Price billed$6,000$4,600
Unbilled estimating, site visits, follow-up7 hours1 hour
Lead cost attributable to the job$250$0
Days from last day on site to funds received545
Held back until project close$0$230

In this example, lower selling time comes with a lower price and slower payment. Confirm the actual tradeoff in the GC's terms. What it costs beyond the money is the ability to walk away: the GC controls the sequence, and you stand behind the drywall crew whether they are on time or not.

Check payment timing, retainage and waiver terms

Cash flow is what ends sub relationships. Three mechanisms stack on each other.

The pay application cycle. Most GCs bill the owner once a month on a pay application, with an internal cutoff somewhere in the last third of the month. Miss it by a day and your invoice waits a full cycle. Ask for the exact date on day one.

Pay-when-paid and pay-if-paid. These labels describe clauses about the GC's receipt of payment and your payment timing or entitlement. Their effect depends on the actual wording, governing law and project. Have a construction attorney review the master agreement and any job-specific terms before relying on either label.

Retainage and lien waivers. Check whether the contract holds back part of each payment, how much, and what triggers its release. For any lien waiver, confirm the work and amount it covers and whether it takes effect before payment clears. Have counsel identify applicable notice or bond-claim requirements, trigger dates and delivery methods before starting; they do not all run from the first or last day you work.

Build GC relationships without depending on one account

Do not budget on an immediate flow of assignments. Track introductions, bids and paid jobs to learn which GC relationships produce work on acceptable terms.

Keep direct-to-customer work alive throughout: a GC's dry spell becomes yours the same week, and retail lead sources go cold if you stop feeding them. And watch concentration — once one GC is most of your revenue, their payment habits are your business plan. Start paying attention past a third.

Pricing two channels out of one set of numbers

Serving both channels can mean adapting your quote for each buyer: a homeowner estimate that explains and reassures, and a scope sheet a super can drop into a bid that evening. What makes it sustainable is one set of unit prices you keep current and pull in both directions. That is where DoneQuote sits — your prices live in one place, you describe or paste the scope you were sent, and the draft uses your services and prices. Check the scope, quantities, selling prices and exclusions before sending it or transferring it into a required bid package.

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