General Contractor and Subcontractor Relationships on Miami Commercial Projects
The contractual and operational structure between general contractors and subcontractors defines how commercial construction projects are delivered in Miami. This page describes how that relationship is organized, what responsibilities each party holds, how work is divided on Miami commercial projects, and where legal and regulatory boundaries apply. Understanding this structure is essential for project owners, construction professionals, and anyone navigating Miami commercial contractor services in a market governed by Florida state licensing law and Miami-Dade County regulations.
Definition and scope
A general contractor (GC) on a Miami commercial project holds the prime contract with the project owner and assumes legal, financial, and scheduling responsibility for the entire scope of construction. A subcontractor is a licensed specialty firm engaged by the GC — not by the owner — to perform a defined portion of the work, typically within a single trade or discipline.
Florida Statute §489.105 defines the categories of "certified" and "registered" contractors and distinguishes between general contractors, building contractors, and specialty subcontractors by license type (Florida Department of Business and Professional Regulation, Chapter 489). In Miami-Dade County, additional local licensing requirements apply through the Miami-Dade County Construction Trades Qualifying Board, which governs trade-specific licenses not covered by state certification alone.
The scope of this page covers commercial construction projects within the City of Miami and Miami-Dade County. It does not address residential construction, projects governed by Broward or Palm Beach County codes, or federal construction contracts subject to the Davis-Bacon Act. Licensing obligations described here reflect Florida state law and Miami-Dade local ordinances — not those of adjacent municipalities such as Coral Gables or Hialeah, which maintain independent building departments.
For a broader breakdown of contractor categories, see Commercial General Contractor vs. Specialty Contractor in Miami.
How it works
The GC-subcontractor relationship is structured in three operational layers on most Miami commercial projects:
- Prime contract — The project owner executes a contract directly with the licensed GC. This contract defines total project scope, schedule, payment terms, and liability allocation.
- Subcontract agreements — The GC issues separate written subcontracts to each specialty trade. These flow down obligations from the prime contract and include scope definitions, schedule milestones, payment conditions, and insurance requirements.
- Sub-subcontractor or supplier tiers — Certain subcontractors engage their own lower-tier firms or materials suppliers. Florida's lien law, codified in Florida Statute §713, governs payment rights and notice obligations down through all tiers (Florida Lien Law, F.S. §713).
Payment flows from the owner to the GC, then from the GC to each subcontractor upon completion of specified work milestones or within timeframes set by Florida's Prompt Payment Act (F.S. §255.073 for public projects, §715.12 for private commercial work). For detailed analysis of payment structures and documentation obligations, see Miami Commercial Contractor Contract Types.
The GC bears primary responsibility for coordinating trade sequencing, managing inspections, and maintaining the project schedule. The Miami commercial construction timeline expectations page addresses how GC-subcontractor coordination affects project duration.
Common scenarios
Design-bid-build projects represent the most common delivery model for Miami commercial construction. The GC bids on complete construction documents, then competitively bids out each trade package to subcontractors. Electrical, mechanical, plumbing, fire protection, and structural steel are typically the five largest subcontracted trade categories on commercial projects.
Construction manager at-risk (CMAR) arrangements alter this structure: the CM holds subcontracts directly and guarantees a maximum price to the owner, but the functional GC-sub relationship remains. For public projects in Miami-Dade County, CMAR procurement follows county procurement codes administered by the Miami-Dade Internal Services Department.
Fast-track projects — common in Miami's hospitality and mixed-use sectors — require the GC to execute subcontracts before full design completion. This increases scope-change exposure and makes robust change order language in subcontracts essential. The Miami commercial contractor bid process describes how GCs structure competitive subcontract procurement.
Tenant improvement (TI) projects in leased commercial space frequently involve a GC hired by the tenant with the landlord's approval. The GC must verify that subcontractors hold the correct Miami-Dade local licenses, as base building work and TI work may cross regulatory boundaries. See Miami Commercial Renovation and Tenant Improvement for further detail.
Decision boundaries
The distinction between what a GC may self-perform versus what must be subcontracted to a licensed specialty contractor is governed by Florida license type. A general contractor licensed under F.S. §489.105(3)(a) may perform structural, framing, and general construction work directly but cannot self-perform electrical, mechanical, or plumbing work without holding the corresponding specialty license — or subcontracting to a firm that does.
GC self-performance vs. subcontracting — key distinctions:
| Factor | GC Self-Performance | Subcontracted Work |
|---|---|---|
| License requirement | General contractor license sufficient | Specialty license required per trade |
| Liability | GC retains full liability | Flows down via indemnity clause |
| Lien rights | GC holds prime lien rights | Sub must serve Notice to Owner within 45 days of first furnishing (F.S. §713.06) |
| Insurance requirements | Covered under GC policy | Sub must carry own GL and workers' comp (Miami commercial contractor insurance requirements) |
Dispute resolution between GCs and subcontractors on Miami projects is typically governed by the subcontract's dispute clause. Florida does not prohibit "pay-if-paid" clauses in private commercial contracts, though enforceability depends on specific contract language. The Miami Commercial Contractor Dispute Resolution page outlines available mechanisms including arbitration, mediation, and lien enforcement.
Bond requirements add another decision boundary: on Miami-Dade public projects exceeding amounts that vary by jurisdiction Florida Statute §255.05 requires the GC to post a payment and performance bond, protecting subcontractors and suppliers. For private projects, bonding is contractually optional but frequently required by lenders. See Miami Commercial Contractor Bonding for coverage thresholds and qualifying criteria.
Lien law compliance governs how subcontractors protect their payment rights. A subcontractor that fails to serve a timely Notice to Owner under F.S. §713 forfeits lien rights regardless of the GC's payment default — a risk documented in detail at Miami Commercial Contractor Lien Laws.
References
- Florida Department of Business and Professional Regulation — Construction Industry Licensing (Chapter 489)
- Florida Statutes §713 — Construction Liens
- Florida Statutes §255.05 — Bond of Contractor Constructing Public Buildings
- Florida Statutes §255.073 — Timely Payment for Purchase of Construction Services (Public)
- Florida Statutes §715.12 — Prompt Payment (Private Contracts)
- Miami-Dade County Construction Trades Qualifying Board
- Miami-Dade Internal Services Department — Procurement