Self-Perform vs Subcontract vs Decline Out-of-Trade Work Decision Matrix
Why this matters
A customer asks you to do work that sits at the edge of, or outside, your trade and license. Doing it yourself might be a quick favor or a fast extra ticket - or it might be unlicensed work that voids your insurance and exposes you to a licensing violation. Subbing it keeps the customer with you but puts your name on someone else's work. Declining sends the customer elsewhere but protects your license and focus. This matrix maps the three responses - self-perform, subcontract, or decline/refer - to your license scope, competence, and liability exposure, so the decision is principled rather than driven by the moment's revenue.
The governing principle: never perform work your license does not cover or your competence does not support. The short-term ticket is never worth the licensing violation, the voided insurance claim, or the callback on work you should not have touched.
The responses
Self-perform: You do the work with your own crew. Appropriate only when the work is within your license scope and your team's genuine competence. The full margin and full control are yours, but so is full liability.
Subcontract: You bring in a licensed specialist under your contract, manage the job, and keep the customer relationship. You earn a coordination margin and keep the account, but you take on responsibility for the sub's work and must verify their license and insurance.
Decline and refer: You tell the customer this is outside your trade and hand them a trusted referral. You earn nothing on the job but protect your license, your focus, and your reputation - and a good referral builds goodwill that returns as future work.
Decision factors
License scope: The hard boundary. Most states license trades separately (electrical, plumbing, HVAC, general). Performing work outside your license classification is a violation regardless of your skill, and it can void the customer's ability to permit and your insurance coverage. Know exactly what your license permits.
Competence: Being legally allowed is not the same as being good at it. Work you can technically self-perform but rarely do invites callbacks and warranty cost. Honest self-assessment beats ego here.
Permit and code requirements: Work that requires a permit pulled under a specific trade license cannot be self-performed if you do not hold that license. The permit itself enforces the boundary.
Liability and insurance: Out-of-scope work is frequently excluded from general-liability coverage. A claim on work outside your license can be denied, leaving you personally exposed. Verify what your policy actually covers.
Customer-relationship value: Subbing keeps a valuable customer whole-served rather than sending them to shop competitors. For a high-value or repeat account, coordinating a sub can be worth more than the margin on the task.
Sub availability and quality: Subbing only works if you have a vetted, licensed, insured specialist you trust. A bad sub on your contract is your problem and your reputation.
The matrix
Within your license and your team's real competence: SELF-PERFORM. Full margin, full control, work you can stand behind. The default for in-trade work.
Within your license but outside your team's routine competence: SELF-PERFORM cautiously or SUB. If callbacks would likely exceed the margin, sub it to someone who does it daily. Do not let "we are allowed to" override "we are not good at this."
Outside your license, but a valuable customer you want to keep whole-served: SUBCONTRACT to a licensed, insured specialist under your contract. Verify their license and certificate of insurance before they start, manage the coordination, and keep the relationship.
Outside your license, low relationship value or no trusted sub available: DECLINE AND REFER. Hand the customer a vetted referral. You protect your license and reputation and earn goodwill rather than gambling on work you should not own.
Requires a permit under a license classification you do not hold: SUB or DECLINE. You cannot pull the permit, so you cannot legally self-perform. The permit boundary is not negotiable.
Adjacent task you could legally do but that pulls you off your core work for marginal return: DECLINE AND REFER or SUB. Protect your crew's focus on the work that actually drives your business.
What to document
- For subcontracted work: the sub's license number and current certificate of insurance, verified before they start, plus your contract assigning responsibility.
- The scope split between your self-performed work and the sub's work.
- For declined work: a note that you referred the customer out and why, which protects you if the referral's work later goes wrong.
- Confirmation that any self-performed work is within your license classification.
Verifying a sub's license and insurance before they touch the job is the single most important record - it is your protection when a sub's work causes a claim.
Practical guidance
The most expensive mistake in this matrix is self-performing slightly-out-of-scope work to capture a small ticket, then having an insurance claim denied or a license board complaint filed because the work was outside your classification. The math never favors that gamble: the ticket is small and the downside is your license, your coverage, and your reputation.
When you sub, remember the customer experiences the sub's work as yours. Vet for quality as hard as you vet for license and insurance, because a cheap unreliable sub on your contract damages the relationship you were trying to protect. And when you decline, a warm, specific referral ("call this licensed electrician, tell them I sent you") keeps the customer's goodwill and often returns to you as the work that is actually in your wheelhouse.
References
- State contractor-licensing statutes defining trade classifications and the penalties for performing work outside your license (varies by state).
- General-liability and commercial policy exclusions for out-of-scope work - confirm coverage with your carrier.
- ConsensusDocs subcontract agreement forms - allocation of responsibility and insurance requirements between contractor and sub.
- State and local permit requirements tied to specific license classifications (model codes IRC/IBC/NEC as adopted locally).
- AGC (Associated General Contractors) and trade-association guidance on subcontractor prequalification and insurance verification.