What Is a General Contractor? Role, Licensing & How to Hire

What a General Contractor Actually Does: Beyond "Managing the Project"

The phrase "manages the project" gets thrown around in every GC description, but it understates what a GC actually does and why they are valuable on complex jobs. Let me be specific about the daily responsibilities that justify the 10–20% markup.

Permitting: A GC identifies which permits are required for the project scope, prepares or coordinates the permit application, submits to the building department, responds to plan check comments, pulls the permit, posts it on the job site, and schedules inspections at the correct project milestones. On a kitchen remodel, this can involve a building permit, electrical permit, plumbing permit, and mechanical permit — four separate applications, four separate inspection sequences. Homeowners who try to manage this themselves frequently miss inspections, fail to schedule in the correct order, and create open permit issues that surface at home sale.

Subcontractor management: A GC maintains relationships with licensed trade subcontractors — electricians, plumbers, HVAC technicians, tile setters, painters, drywall crews, cabinet installers — and coordinates their work in the correct sequence. The sequence matters: you cannot install drywall before rough electrical inspection passes, cannot tile before waterproofing is complete, cannot set cabinets before tile is done. A GC who has run these sequences hundreds of times manages the logic without being taught. A homeowner managing their first remodel frequently calls trades in the wrong order, creating rework.

Material procurement: GCs have supplier accounts with lumberyards, plumbing supply houses, and electrical distributors. They buy materials at trade pricing (typically 15–30% below retail), can specify materials to code requirements from memory, and absorb the logistics of ordering, receiving, and storing materials on site. Homeowners buying materials directly often pay retail pricing and make specification errors (wrong gauge wire, non-code plumbing fittings) that require replacement.

Quality control: A GC inspects subcontractor work before concealing it — checking rough framing before drywall, verifying plumbing rough-in before tile, reviewing electrical rough-in before insulation. If a sub does deficient work, the GC identifies it before it is buried in the wall and requires the sub to correct it at no additional cost to the homeowner. This is perhaps the most underappreciated GC function: catching problems while they are still cheap to fix.

Budget management: A GC tracks labor and material costs against the project budget in real time, flags scope changes that will affect cost, and presents change orders with pricing for homeowner approval before proceeding. On fixed-price contracts, the GC bears the financial risk of cost overruns from their own errors or underestimates.

GC vs. Subcontractor vs. Owner-Builder: Understanding the Hierarchy

These three roles operate at different levels of the construction hierarchy, and confusing them is one of the most common sources of homeowner problems on renovation projects.

When homeowners hire subcontractors directly — bypassing the GC entirely — they effectively become owner-builders. This saves the GC markup but transfers all project management responsibility, legal liability for permit violations, and quality control to the homeowner. For simple single-trade projects this is appropriate. For any project involving multiple trades, a building permit, or more than two weeks of work, the GC's coordination value routinely exceeds their fee.

Licensing Requirements: What GCs Must Have to Legally Operate

General contractor licensing in the United States is fragmented — there is no federal GC license and no uniform national standard. Requirements range from strict statewide exams to minimal county-level registration. Here is the actual landscape:

In addition to the license itself, a qualified GC must carry two forms of insurance: general liability insurance (covering property damage and bodily injury to third parties during the project — minimum $1 million per occurrence is standard for residential work) and workers' compensation insurance (covering medical and lost-wage costs if a worker is injured on your property). A GC operating without workers' comp exposes the homeowner to direct liability — if an uninsured worker is injured on your property, your homeowner's insurance becomes the target.

Always request a Certificate of Insurance (COI) sent directly from the contractor's insurance company to your email address. Do not accept a PDF the contractor provides directly — it can be altered. The COI should show the policy effective dates, coverage limits, and your property address as the certificate holder.

How General Contractors Charge: Fee Structures Explained

GCs use several different contract and fee structures. Understanding which you are agreeing to matters significantly for your final cost exposure.

Fixed-price (lump sum) contract: The GC quotes a total price for a defined scope of work. If their costs come in lower than estimated, they profit from the difference. If costs run higher due to their errors, they absorb it. This gives the homeowner cost certainty but works only when the scope is fully defined upfront. A fixed-price kitchen remodel bid requires complete drawings, finalized material selections, and no anticipated discoveries. Ambiguous scope → unreliable fixed price.

Cost-plus with fixed fee: The homeowner pays actual project costs (subcontractors, materials, labor) plus a fixed dollar fee to the GC for management. This is transparent — you see every invoice — but costs fluctuate with actual field conditions. Often used on renovations with high discovery risk (older homes, unknown conditions behind walls). The GC has no incentive to cut corners to protect margin, but the homeowner absorbs cost overruns from field conditions.

Cost-plus with percentage fee: The homeowner pays actual costs plus a percentage (typically 15–20%) as the GC's fee. This is the most common structure but creates a subtle misalignment: a higher-cost project earns the GC more fee. Transparency measures — requiring copies of all subcontractor invoices — are important on this structure. Per NAHB's 2024 Cost of Doing Business Survey, average overhead and profit for residential remodeling contractors is 17.8% of project revenue.

Time-and-materials (T&M): The homeowner pays actual labor hours at a specified hourly rate plus materials at cost (or cost plus a markup). Appropriate for small or undefined scopes — a handyman fixing several items, an hourly repair call. Should not be used for large renovation projects where cost exposure is uncapped.

Here is what the fee structure looks like in dollar terms across typical project sizes:

For your specific project, use the construction cost calculator to get a baseline estimate before requesting contractor bids.

GC Salaries and Career Path: What the Data Shows

For those entering or evaluating the profession, salary data provides useful context on the GC career trajectory. Per the U.S. Bureau of Labor Statistics Occupational Outlook Handbook (construction managers category, which captures employed GCs and construction management professionals):

• National median salary: $78,690/year — the 50th percentile for employed construction managers
• 10th percentile: ~$47,000/year — entry-level employed positions
• 90th percentile: $126,690+/year — senior positions and top earners in W-2 employment
• Self-employed GCs: The BLS data significantly understates income for self-employed GCs running their own companies. A GC running $2 million per year in project volume at 17.8% overhead and profit is generating $356,000 in gross revenue before overhead — with net earnings depending entirely on overhead cost control
• Job growth: 8% through 2032 (BLS projection), faster than average for all occupations — driven by infrastructure spending, housing demand, and construction complexity requiring professional management

The career path to running a GC company typically follows this sequence: 3–5 years in a trade (carpentry, framing, concrete) → field superintendent or foreman role → project management → licensing exam → independent contractor → GC company ownership. The licensing exam itself covers construction law, contract management, building codes, and business practices — it is not a trade test.

How to Hire a General Contractor: A Practical Checklist

The contractor hiring process is where most homeowner problems begin. The FTC received 81,925 reports of home improvement fraud in 2024 — more than enough to justify a systematic vetting process. Here is the sequence that separates good hires from expensive mistakes:

Step 1 — Get referrals from primary sources. The strongest referral is a neighbor or colleague who used a GC within the past 12 months, on a project similar in scope to yours, and who will let you see the completed work. Lead generation platforms (Angi, HomeAdvisor, Thumbtack) deliver contractors who pay for placement — the referral quality is not equivalent to a personal introduction. Ask for referrals specifically, not platform reviews.

Step 2 — Verify license and insurance before the first meeting. Look up the license number in your state's contractor license database before you invest time in a meeting. Confirm it is active, has no disciplinary actions, and covers the work type. Request the COI from their insurer directly. Contractors who cannot provide a COI within 24 hours of request should be removed from consideration.

Step 3 — Get minimum three bids — and evaluate them critically. Three bids provide a market reference. But "comparing bids" is meaningless if the bids specify different material grades, scope assumptions, or exclusions. Require all bids to be based on the same defined scope and material specifications. A bid that is 30% lower than the other two is not a bargain — it is a signal that the contractor missed scope, intends to substitute materials, or will manage the project through change orders.

Step 4 — Check the contract before signing. A legitimate GC contract includes: specific scope of work (not "kitchen renovation" but materials, dimensions, specifications), project timeline with milestone dates, payment schedule tied to milestones (not upfront-heavy), permit responsibility (GC pulls and pays for all permits), change order process and pricing, lien waiver requirements, and dispute resolution clause. Standard payment structure: 10–15% upfront, subsequent draws at defined milestones, 5–10% retainage held until final inspection and punch list completion.

Step 5 — Watch for red flags during the project. Key warning signs that a project is going sideways: the GC requests payment ahead of the milestone schedule, subcontractors appear without introduction or apparent GC supervision, work is proceeding without pulling required permits, the GC stops showing up on site personally, or material quality delivered is visibly different from what was specified. Any of these triggers a conversation and a written record.

For a detailed guide to the vetting process, including red flags, contract language, and reference call scripts, see our full guide on how to find a good contractor.

When You Don't Need a GC: Projects Where Direct Hiring Makes Sense

A GC's value is proportional to the complexity of what they are coordinating. For single-trade, single-milestone projects, the markup may not be justified.

Projects where hiring directly makes sense: replacing an HVAC system (single trade, single crew, one permit, one inspection), painting an interior (no permit, no subcontractors, low complexity), replacing a roof (single roofing crew, roofing permit, no coordination with other trades), water heater replacement, electrical panel upgrade (single electrician), or hiring a plumber to replace fixtures.

Projects that genuinely need a GC: any kitchen or bathroom gut remodel (involves plumbing, electrical, framing, tile, cabinets — all sequenced), room additions and structural work, basement finishing (framing, electrical, plumbing, HVAC, drywall, flooring — all present), and new construction. The determining question is not project cost — it is how many trades must be coordinated and whether the permit structure requires a licensed contractor in your jurisdiction.

For a data-driven breakdown of when the GC fee is worth paying vs. when DIY project management is appropriate, see our contractor hiring guide.

Frequently Asked Questions