4.3 Determining Outsourced Services

4.3 Determining Outsourced Services

Area B's outsourced services item asks when a Florida HVAC contractor should buy a specialty instead of hiring it. The Contractors Manual and Builder's Guide to Accounting treat the decision as license scope plus job-cost structure. A legitimate subcontractor invoice is a direct job cost. A helper you control who invoices you on a 1099 is still an employee from section 4.1. Outsourcing does not erase qualifying-agent supervision under F.S. 489.1195, and it does not expand Class B capacity.

Keep versus buy: the decision rule

Outsource when all of the following are true:

1. The work is outside the air-conditioning license, or inside the license but beyond the shop's equipment, certification, or peak-season capacity.
2. The vendor is a properly licensed contractor (or a Florida professional engineer (PE) for sealed work) with workers' compensation or a valid exemption and general liability.
3. You can supervise, inspect, and warrant the interface — the curb, the disconnect, the duct connection, the refrigerant charge — because the CILB qualifier still owns the job.
4. The subcontract price, plus your markup for supervision, warranty, and overhead, still fits the estimate.

Keep the work in-house when it is core HVAC labor you already burden (W-2 techs, recovery machines, brazing, start-up) and when teaching a helper is cheaper than a specialty minimum. August overtime on W-2 techs is often cheaper than a panic subcontract after a hurricane — until the work is electrical, structural, or over Class B tonnage, at which point overtime cannot cure a license problem.

Electrical work beyond HVAC statutory limits

F.S. 489.105(3)(f)–(g) give air-conditioning contractors a narrow electrical grant, not an electrical license. You may:

• Replace, disconnect, or reconnect power wiring on the line or load side of the dedicated existing electrical disconnect on single-phase systems.
• Repair or replace power wiring, disconnects, breakers, or fuses for dedicated HVAC circuits with proper use of a circuit-breaker lock.
• Install, disconnect, and reconnect low-voltage HVAC control wiring.
• Install a condensate drain to an existing safe waste or other approved disposal other than a direct connection to a sanitary system.

You may not run potable water, sanitary sewer, pool piping, or electrical power wiring beyond those HVAC exceptions. You may not install liquefied petroleum or natural gas fuel lines within buildings except disconnect/reconnect of those appliances on a changeout. Three-phase power wiring, a new circuit from a panel that is not a dedicated existing HVAC disconnect, service-entrance work, and lighting are electrical-contractor work. Outsource them. Putting a 1099 “electrician” who is not licensed on your rooftop is unlicensed contracting stacked on misclassification.

Class A and Class B share this electrical limit. Unlimited tonnage is not unlimited voltage or phase.

Sheet metal, crane, recovery, and engineering

Sheet metal. Residential changeouts often use factory plenums, flexible duct, and ductboard that W-2 installers can set to SMACNA and Florida Building Code — Mechanical 2023 rules. Large commercial rectangular duct, kitchen grease duct (NFPA 96), and pressure-class duct that must be fabricated in a shop are frequently outsourced to a licensed sheet-metal contractor. That sub brings a brake, a plasma table, and workers' compensation on sheet-metal classes. Paying a helper to roll duct on your shop brake after hours is not a sheet-metal subcontract; it is more W-2 payroll (and possibly a different workers' compensation class). If the HVAC firm has a real sheet-metal shop and W-2 mechanics, keep it — and burden it.

Crane and rigging. Setting a packaged rooftop or an air-cooled chiller is a lift. OSHA 29 CFR 1926 Subpart CC governs cranes in construction. Most HVAC shops do not own a crane or a certified operator. Outsource the lift to a crane company, require proof of operator qualification, and treat the invoice as a job cost. After a Florida hurricane, crane minimums spike; that is a bid input, not a surprise. Class A jobs over 25 tons are where this cost becomes routine. Class B still sees 5-ton rooftop packages that need a picker or crane; the license class does not remove the lift hazard.

Refrigerant recovery. EPA Section 608 technician certification is federal and is not a substitute for a CILB license. Venting is prohibited. If your W-2 crew is 608-certified and you own recovery machines sized for 3–20 ton work, keep recovery in-house. Outsource when you lack certified techs, when a replacement involves a large chiller or centrifugal charge your machines cannot hold, or when a specialty recovery contractor is the only legal way to pull a retired R-22 or high-charge plant. The HVAC contractor of record still documents the recovery. Outsourcing the tank does not outsource the EPA duty.

Engineering and PE stamps. F.S. 489.105 lets an air-conditioning contractor design systems if not prohibited by law. Residential Manual J / S / D load and equipment selection is ordinary contractor design. When the project specifications or Florida law require drawings signed and sealed by a Florida licensed professional engineer (Chapter 471) — rooftop structural loading, some commercial mechanical plans, life-safety smoke-control narratives, or energy models a building official will only accept from a PE — outsource the stamp. Do not “stamp” drawings with a contractor license. Do not let an unlicensed designer impersonate a PE. Class A design of boilers and pressure vessels is still not a PE license.

Class B cannot subcontract around capacity

F.S. 489.113(9)(a) allows a contractor to act as prime when the majority of the work under the contract is within the license, subcontracting remaining licensed trades (electrical, plumbing, roofing, sheet metal). That rule lets a Class A HVAC prime hire an electrician for three-phase power. It does not let a Class B HVAC contractor take a 40-ton chiller as prime and hire a Class A friend to “be the license” on the same system. Capacity is in any one system. Outsourced services cannot launder tonnage.

A Class B shop that wins a campus of 20-ton rooftops plus one 40-ton chiller should bid the 20-ton work and let the owner contract the chiller to a Class A or mechanical contractor — or the Class B qualifier must not take the campus as a single HVAC contract. Joint ventures are themselves business organizations that must be qualified (F.S. 489.119). Handshake “we'll put it on their ticket” is how 489.127 items are written.

Accounting: subcontracts are cost of sales, not overhead

Builder's Guide: a subcontract on a named job is a direct cost (cost of sales). It is not rent. It still needs:

• A written subcontract (AIA A401-2017 is on the 2026 B&F list for this reason).
• License, certificate of insurance, and workers' compensation or exemption before the sub steps on the roof (F.S. 440.10).
• Your markup for supervision, warranty, punch, and general overhead. Passing through a crane invoice at cost with no markup is how overhead from section 4.2 goes unrecovered.
• Retainage and lien-law notices if you are not in privity with the owner — Chapter 713 is a later chapter; the Area B point is that unpaid subs become your problem.

A professional employer organization (PEO) or payroll service is a different outsource: Circular E warns that you remain responsible for employment taxes if a third party fails to deposit. A certified professional employer organization (CPEO) has special IRS status; an ordinary payroll vendor does not take your Form 941 liability away. Do not outsource payroll in order to pretend you have no employees.

Florida HVAC scenario

Harbor Class A Mechanical, Inc. in Miami-Dade wins replacement of an 80-ton air-cooled chiller on a three-story condominium. The qualifier maps outsourced services before the bid, not after the crane is late:

• Engineering. The existing dunnage may not take the new operating weight. A Florida PE stamps a rooftop structural letter. That fee is in the bid.
• Electrical. The new chiller is three-phase. The existing disconnect must be replaced from the switchgear. Harbor's HVAC electrical grant does not cover that feeder. A licensed electrical contractor is named in the bid.
• Crane. Saturday morning lift, OSHA 1926 Subpart CC operator, Miami-Dade street permit. Job cost, with weather contingency.
• Sheet metal. New 6,000 cfm supply mains in rectangular metal, seal class required by energy code. A licensed sheet-metal contractor fabricates to SMACNA HVAC Duct Construction, 4th edition (2020).
• Recovery. The old plant still holds a large charge. Harbor's 608 techs own the recovery; they rent additional recovery cylinders rather than venting. Cylinder rental is a job cost.
• Staffing. Harbor uses W-2 lead installers for set, pipe, and start-up. It does not 1099 the electrician's helpers or the crane oiler.

If Harbor were Class B, the correct outsource decision would be not to bid the 80-ton chiller at all. Hiring a Class A company as a “sub” would not make Class B the legal contractor of record on that system. Determining outsourced services includes knowing when the only honest service to outsource is the entire job to a firm whose license matches the tons.