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Acronymsaka: general contractoraka: prime contractor

GC (General Contractor)

In Plain English

The main contractor responsible for managing an entire construction project from start to finish.

Definition

A general contractor is the primary contractor who holds the prime contract with the project owner and is responsible for managing all aspects of construction, including hiring and supervising subcontractors, procuring materials, maintaining the construction schedule, and ensuring quality and safety on the jobsite. The GC coordinates all trades, resolves field conflicts, and serves as the single point of accountability to the owner for project delivery. General contractors must typically be licensed in the states where they work.

Why It Matters in Bidding

On most projects the GC is the entity that assembles and submits the prime bid to the owner, gathering subcontractor quotes, applying general conditions and markup, and carrying the contractual risk of completing the job for the bid price. Understanding the GC's role is central to procurement because the GC controls which subs get awarded scopes, how bids are leveled, and how risk and contingency flow from owner through the prime contract down to the trades.

Example

At bid day the GC collected sealed subcontractor quotes for each trade, leveled them for scope gaps, and rolled the lowest responsible numbers into its lump-sum prime bid to the owner.

Related Terms

AGC (Associated General Contractors)CMAR (Construction Manager at Risk)SOV (Schedule of Values)

Frequently Asked Questions

The GC solicits and collects bids from subcontractors and suppliers, levels them to ensure equal scope coverage, adds its own self-performed work, general conditions, overhead, and profit, then submits a single prime bid to the owner. After award, the GC executes subcontracts and manages the schedule, quality, and safety across the whole project.
A traditional GC holds the trade subcontracts and carries the risk of delivering at a fixed or lump-sum price, often selected by low bid. A construction manager is frequently hired earlier for fee-based preconstruction advice and may deliver under a guaranteed maximum price. The CMAR model blends both, advising during design and acting as builder during construction.
Once the GC incorporates a sub's number into the prime bid and wins, the GC is contractually bound to the owner for that scope regardless of the sub's mistake. The GC may try to hold the sub to its quote or find another, but the owner generally looks only to the GC, which is why careful bid leveling matters.

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