Three-Phase Power, Panel & Switchgear Upgrades in South Florida
Licensed commercial electricians for three-phase service, panelboards, and switchgear across Broward and Miami-Dade. New three-phase service, 120/208V and 277/480V systems, 400A-1200A+ service upgrades, transformers, metering, and full FPL coordination — engineered for heavy equipment loads and scheduled around your business.
Three-Phase Power & Switchgear for South Florida Businesses
When a business outgrows the electrical system it was built on, the symptoms show up fast — breakers tripping under load, motors running hot, lights dimming when the HVAC kicks on, and equipment you can't add because there simply isn't capacity left in the panel. The fix is almost always the same: real three-phase power, properly sized switchgear, and a commercial panel that can carry the load. Single-phase service is adequate for small offices and light loads, but three-phase power delivers energy more efficiently and runs large motors, compressors, elevators, and heavy machinery without the voltage drop and overheating that plague overloaded single-phase systems. For most commercial and industrial buildings in Broward and Miami-Dade, a three-phase service upgrade is what turns a struggling electrical system into one that supports the business for the next twenty years.
Every three-phase project we take on is led by a licensed electrician and built around your equipment loads. We start with a load calculation, size the service and gear correctly, and coordinate directly with FPL on the metering, CT requirements, and utility cutover so the new switchgear is energized on schedule. Whether you need a 120/208V system for a retail center, a 277/480V service for a warehouse, a 400A to 1200A+ service upgrade, new panelboards and sub-panels, step-down transformers, or a metering and CT cabinet, the work is fully permitted, inspection-ready, and staged around your hours so you lose as little uptime as possible. The result is clean, code-compliant three-phase power with the headroom to add equipment as you grow.
What We Install & Upgrade
Full three-phase power, commercial panel, and switchgear scope for buildings across South Florida:
- New three-phase service — full single-phase to three-phase conversions and new three-phase service for commercial and industrial buildings.
- 120/208V & 277/480V systems — design and installation of both common commercial voltage systems based on your equipment loads.
- Commercial panelboards & switchgear — main switchgear, distribution boards, and panelboards sized and built for high-demand buildings.
- Sub-panels & distribution — feeders, sub-panels, and branch distribution to bring power exactly where your equipment needs it.
- Service upgrades 400A-1200A+ — heavy commercial service upgrades, including larger services with full switchgear lineups.
- Transformers & step-downs — dry-type and step-down transformers to deliver 120/208V from a 277/480V service where required.
- Metering & CT cabinets — utility metering, current-transformer cabinets, and meter stacks built to FPL specifications.
- Load calcs & FPL coordination — engineered load calculations, service sizing, and direct coordination with FPL on the utility cutover.
Why Businesses Choose Us
Built for commercial work — minimal downtime, clean compliance, accountable crews.
Zero-Downtime Scheduling
Evenings, overnights, and weekends so your restaurant, store, or office never loses a revenue hour to electrical work.
Permits, Code & COI Handled
We pull Broward and Miami-Dade permits, pass inspections, and provide certificates of insurance for GCs, landlords, and PMs.
Scalable, Accountable Crews
From a single circuit to a multi-site rollout, the same licensed team plans, prices, and executes — one point of contact throughout.
What Commercial Clients Say
In Fort Lauderdale just after sunset, our HOA board member scheduled 24/7 Electrician for a 200A service upgrade.
Miami Gardens project: grounding and bonding correction requested by our realtor and assigned to Avi from the team.
I had an urgent electrical issue in my warehouse in Hollywood, and 24/7 Electrician really lived up to their name.
Three-Phase & Switchgear — FAQ
What is the difference between single-phase and three-phase power for a business?
Single-phase power is fine for small offices and light loads, but three-phase power delivers more power more efficiently and runs large motors, HVAC, elevators, and heavy equipment without the voltage drop and overheating you get on overloaded single-phase systems. Most commercial and industrial buildings in South Florida need three-phase service to support their equipment loads reliably.
Can you upgrade my building from single-phase to three-phase service?
Yes. We perform load calculations, design the new service, coordinate the conversion and metering changes with FPL, and install the three-phase panel, switchgear, and distribution. We manage the permit and inspection from start to finish so the cutover is clean and code-compliant.
What is the difference between 120/208V and 277/480V three-phase systems?
120/208V is common in retail, offices, and mixed-use buildings, powering receptacles, lighting, and smaller equipment. 277/480V is used in larger commercial and industrial facilities for big motors, HVAC, and high-bay lighting, with step-down transformers providing 120/208V where needed. We design and install both, and the right choice depends on your equipment loads.
How large a service upgrade can you handle?
We install commercial service upgrades from 400A through 1200A and larger, including switchgear, metering and CT cabinets, and distribution panelboards. For high-demand buildings we run the load calculations, size the gear, and coordinate the new service capacity directly with FPL.
Do you coordinate the service upgrade with FPL?
Yes. FPL coordination is a core part of every three-phase service upgrade — we handle the service request, metering and CT requirements, and scheduling of the utility cutover so the new switchgear is energized on time and to spec.
Can you upgrade the panel and switchgear without shutting down our operation?
In most cases, yes. We plan the cutover around your business hours, stage the new switchgear and panelboards ahead of time, and schedule the final tie-in for an evening, overnight, or weekend window so your operation loses as little uptime as possible.
Planning a three-phase service upgrade, new switchgear, or a commercial panel replacement? Tell us your equipment loads and we'll size the service, run the load calc, and handle FPL from start to finish. Explore our full commercial electrician services or request a quote below.
Request a Commercial Quote