An HVAC controls technician installs, programs, and troubleshoots the control systems that decide when heating, cooling, and ventilation equipment runs — the controllers, sensors, and networks the trade calls building automation systems (BAS).
Federal data counts the role inside HVACR mechanics (SOC 49-9021): O*NET's sample titles include HVAC Control Tech.
This guide covers the work, who hires, the skills, the route in, and the pay.
What does a controls/BAS technician do?
An HVAC controls technician is an HVACR mechanic whose work centers on the control layer: the controllers, sensors, actuators, and wiring that decide when heating, cooling, and ventilation equipment runs.
O*NET defines the occupation the role sits in — Heating, Air Conditioning, and Refrigeration Mechanics and Installers (SOC 49-9021.00) — as workers who install or repair heating, central air conditioning, HVAC, or refrigeration systems.
The federal duty list reads like a controls job description.
BLS lists installing electrical components and wiring, inspecting and testing systems, discussing malfunctions with customers, and keeping records among a technician's duties, and O*NET rates laying out and connecting control wiring from wiring diagrams and testing electrical circuits for continuity among the occupation's top-rated core tasks.
Day to day, that looks like this: mount and wire DDC (direct digital control) panels, connect sensors and actuators, load and adjust the program that runs each piece of equipment to its sequence of operation, join the controllers into a network, then prove the system works and answer it when it does not.
Troubleshooting is the craft's center of gravity.
O*NET rates discussing system malfunctions with users to isolate problems as the single highest-importance core task for the occupation — controls work is diagnosis as much as wiring.
HVAC controls vs building automation: same job?
In practice, yes — controls technician, HVAC controls tech, building automation technician, building automation systems technician, building automation controls technician: employers use the titles for the same bench of work.
Federal data backs the overlap.
O*NET has no separate occupation code for controls work; HVAC Control Tech is simply one of the sample job titles it lists under HVACR mechanics (49-9021.00), alongside AC Mechanic, HVAC Installer, and HVAC Mechanic.
The words do point at two different layers, though.
Controls is the device layer — the panels, sensors, and wiring on and around the equipment.
Building automation is the whole networked system those devices join, and it reaches past HVAC: ASHRAE describes BACnet, the protocol these systems speak, as designed for building automation and control applications such as HVAC control, fire and life-safety systems, security, and energy management.
The practical takeaway if you are comparing postings: read the duties, not the title.
One employer's controls technician programs sequences and tunes networks all week; another's rides a service van trading sensors and actuators.
Both describe the role this guide covers.
Who hires controls techs?
BLS publishes no controls-only employer count — the role is counted inside HVACR mechanics (49-9021) — so the employment picture comes from the occupation's industries.
In May 2025, Building Equipment Contractors — the mechanical and building-systems contractors — employed 305,330 of these workers, by far the largest industry, followed by Merchant Wholesalers, Durable Goods at 12,190 (the equipment distribution tier) and Fuel Dealers at 8,480 (OEWS).
Within that picture, controls work concentrates with employers that own a building's systems end to end: mechanical and building-equipment contractors that run a controls division, dedicated controls contractors that install and service building automation for other shops, and the branch networks of the controls manufacturers themselves.
The work also splits the way BLS describes specialization across the occupation: some technicians specialize in installation while others repair and maintain systems.
On the controls side that is the difference between an install crew that hangs panels and pulls wire on new construction and a service tech who keeps an existing network healthy — two different weeks built on the same skills.
Controls technician skills: electrical, networking, sequences of operation
Electrical.
Control wiring is the trade's hands-on core.
O*NET rates laying out and connecting control wiring from wiring diagrams (importance 81) and testing electrical circuits or components for continuity with electrical test equipment (83) among the occupation's top-rated tasks, and BLS lists installing electrical components and wiring among its duties.
Reading wiring diagrams and working a meter is the entry ticket.
Networking.
A BAS only pays off when its controllers talk to each other, and one open standard they speak is BACnet — ASHRAE Standard 135, A Data Communication Protocol for Building Automation and Control Networks, currently listed in its 135-2024 edition.
Addressing devices onto that network — points, links, and the wiring between panels — is the layer that separates a controls tech from equipment-setting.
Sequences of operation.
The sequence of operation is the written logic a system is commissioned to follow — when the economizer brings in outside air, when the lead chiller stages on.
Programming controllers to execute it is a core part of the craft: Tridium describes its Niagara 4 credential course as training field service personnel to design, engineer, and program projects on the Niagara 4 Framework.
Diagnosis.
The highest-importance task O*NET rates for the occupation is discussing malfunctions with users to isolate problems — hearing a symptom from a building manager and turning it into a testable cause.
A controls tech who cannot talk to people cannot isolate the fault.
How do you become an HVAC controls technician?
There is no single gate.
O*NET places HVACR mechanics in Job Zone Three ("Medium Preparation Needed"), where most occupations require vocational training, related on-the-job experience, or an associate's degree — and controls techs are built from that mix: an HVACR foundation from trade school, an apprenticeship, or the field, then controls specialization learned on the job.
Starting from zero, the broader HVAC technician role is the usual on-ramp.
Vendor credentials are the controls layer's own ladder.
Tridium's entry credential course is the Niagara 4 Technical Certification Program (TCP), a hands-on course for field service personnel to design, engineer, and program projects on the Niagara 4 Framework.
Johnson Controls' Training Institute sells customer courses that award CEUs, including Metasys engineering and operations courses.
Program names, formats, and prices change — check the vendor's current catalog before you budget.
Whether control wiring needs a license depends on where you work
HVAC controls technician pay vs field HVAC
Start with the honest limit: federal data does not separate controls pay from any other HVACR pay.
Controls techs are counted inside Heating, Air Conditioning, and Refrigeration Mechanics and Installers (49-9021), and BLS publishes wage figures only for the combined occupation — a controls-vs-field pay gap cannot be computed from federal data, and any page quoting one is inventing it.
The combined figure is the honest number: a median of $29.33 an hour, or $61,010 a year, in May 2025 (OEWS, released May 15, 2026).
The outlook is measured the same combined way: employment is projected to grow 10.9% from 2025 to 2035 (440.9k to 489.1k jobs, including self-employed), with an average of 40,600 openings a year — faster than the 3.5% all-occupation average (BLS Employment Projections, 2025–35).
For national percentiles, see the HVAC controls technician salary page; state figures for the whole occupation are on the HVAC technician salary page.
Find HVAC controls technician jobs
Controls roles concentrate where the networks are: office towers, campuses, hospitals, data halls, and the mechanical contractors that serve them.
Postings under controls technician, building automation technician, and HVAC controls tech describe the same bench of work, so it pays to search more than one of the titles.
Every listing on this board is HVAC and plumbing only, so you are never filtering out unrelated trades.
Browse open HVAC controls technician jobs to see what is live today.
Career information, not legal advice. Licensing rules vary by state and city — confirm current requirements with the state licensing agency or the city/county building department where you work.