AEC definitions

What Is a General Contractor?

Last reviewed: September 2026

A general contractor, or GC, is the firm that holds the prime construction contract with the owner and coordinates the subcontractors who perform the trade work. The GC is responsible for building the project according to the contract documents, schedule, and price.

Abbreviation
GC
Contract
The prime construction agreement with the owner
Coordinates
Subcontractors and suppliers on the site
Responsible for
Means, methods, safety, schedule, and the contract price
Not the same as
The architect, or a CM who does not hold trade contracts
Paid through
Pay applications against the schedule of values

Definition

General Contractor (GC)

The owner contracts with one builder instead of with every trade. That prime is the general contractor. The GC buys out subcontractors, schedules the site, manages safety and temporary facilities, submits pay applications and submittals, and is the contractual source of construction means and methods. Architects and engineers design and administer the documents. They do not employ the trades. A construction manager at risk is a GC with an earlier role during design, often under a GMP. A CM as agent manages for the owner and does not hold the trade contracts. "GC" in a meeting can mean any of those if people are being loose. The contract shows who holds the risk.

In depth

What the GC is on the hook for

The GC has to deliver the scope in the drawings and specifications, on the contract time, for the contract sum, using means and methods the GC chooses. That includes site logistics, temporary power and protection, coordination among trades, and quality control of the work in place. RFIs and submittals go out under the GC’s name even when a subcontractor wrote them. The owner and architect are entitled to one coordinated contractor, not a stack of trade letters.

Safety of the construction means is the GC’s duty. The architect’s site visit is not a safety inspection. Owners who direct means and methods, or who hire trades around the GC, blur the responsibility the prime contract was written to create.

Subcontractors do the work. The GC holds the contract.

Mechanical, electrical, plumbing, concrete, and finishes are typically subcontracted. The subcontract is between the GC and the trade. The owner is not a party to it. Flow-down clauses push relevant prime-contract obligations onto the sub. When a sub is late or its submittal is wrong, the owner’s remedy is still against the GC. The GC’s remedy is against the sub.

Self-performed work, where the GC’s own crews build a trade, is common for concrete or carpentry. It should be visible in the schedule of values. On a GMP, self-perform prices need the competitive check the contract requires, because the GC is both buyer and seller.

Construction manager is not automatically a GC

CM-at-risk holds the trade contracts and the construction risk, much like a GC, and is involved before the documents are finished. CM-as-agent advises the owner and the owner may hold the trade contracts directly, or the CM issues them as agent. The fee structures differ. Calling every owner’s advisor a GC misstates who pays the trades when something is late.

Design-build folds design into the builder’s contract. The design-builder may be a GC that hired the architect. In that case the GC role and the prime design-build role are the same firm, and the architect of record may not have a contract with the owner. Ask whose name is on the agreement before you route an instruction.

How the GC shows up in the document flow

The GC maintains the submittal log, the RFI log, and the pay application. The superintendent runs the site. The project manager runs the cost and the documents. Those are different people on any job large enough to have both. Correspondence to "the GC" that never reaches the superintendent does not change tomorrow’s pour.

The GC does not seal drawings and does not decide design intent. When documents conflict, the GC asks, via RFI, and prices a change if the answer adds scope. Proceeding on an assumption and claiming later is a harder path than an RFI issued before the work is covered up.

Examples

General Contractor (GC) on a real project

  • 01

    An owner signs one construction contract with a GC, who then subcontracts HVAC, electrical, and drywall.

  • 02

    A subcontractor’s substitution request reaches the architect only after the GC reviews it and puts it in the submittal log.

  • 03

    A CM-at-risk converts preconstruction advice into a GMP and then holds the trade contracts like a GC.

FAQ

Frequently asked questions

A general contractor holds the construction contract with the owner, hires and coordinates subcontractors, and is responsible for building the work according to the documents, schedule, and price, including site safety and temporary facilities.

The general contractor has the prime contract with the owner. A subcontractor has a contract with the general contractor for a trade, such as electrical or roofing. The owner directs the GC. The GC directs the subcontractor.

A GC, and a construction manager at risk, holds the trade contracts and the construction risk. A construction manager as agent advises the owner and may not hold those contracts. The agreement, not the business card, shows which role you hired.

Not on a design-bid-build project. The architect and engineers design and seal the documents. The GC builds them and is responsible for means and methods. On design-build, the design-builder’s contract includes design, performed by licensed professionals on that team.
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What Is a General Contractor? Role on a Construction Project | Nomic