Electrical · Service & Distribution

Service & Distribution

Every building starts at the service. We design, install, and energize the incoming electrical service and the distribution system that carries power to every panel, circuit, and device — sized for today's load and tomorrow's expansion.

What We Provide

Service & Distribution — in detail

We design, install, terminate, and commission service & distribution for commercial and industrial facilities across Arizona — coordinated with our own underground, HVAC, and construction crews. Here is what each part of the scope actually involves.

Utility Coordination & Service Entrance

  • Utility coordination and point-of-connection — We work directly with the serving utility (such as TEP or Trico) to establish the point of connection, confirm the available voltage and capacity, complete the service application, and schedule the meter set — so power is ready when the building is.
  • Service entrance, metering, and CT cabinets — We furnish and install the service-entrance equipment, meter sockets, and current-transformer (CT) cabinets the utility requires, built to their spec and the NEC, and we carry it through the inspection and utility release that energizes the service.
  • Overhead or underground service — Whether the service drops from a utility pole or is fed underground from a transformer, we install the masts, risers, conduits, and conductors — and self-perform the trenching and duct bank when the service is underground.
  • Service upgrades, re-feeds, and capacity additions — When an existing facility outgrows its service, we increase the amperage, replace or add gear, and re-feed the building — often phased around an operating facility to keep downtime to a minimum.

Switchgear, Switchboards & Panelboards

  • Low-voltage switchgear and switchboards — These are the main distribution assemblies that take incoming power and split it into feeders. We set, bus, and terminate switchgear and switchboards, then torque and test every connection to manufacturer and NEC requirements.
  • Distribution and branch panelboards — Panelboards break power down to the circuits that feed lighting, receptacles, and equipment. We install and label distribution and branch panels, land the feeders and circuits, and leave accurate panel schedules for the people who maintain the building.
  • Bus duct and busway — For high-amperage runs and flexible distribution, we install bus duct and plug-in busway — common in industrial and warehouse spaces where equipment locations change over time.
  • Fault-current and coordination per our engineering — Gear has to be rated for the available fault current and coordinated so the correct device trips first. We install equipment to match the short-circuit and coordination study from our in-house engineering, and apply the arc-flash labeling.

Transformers & Feeders

  • Dry-type and pad-mounted transformers — Transformers step voltage to what the building needs — 480V down to 208/120V, for example. We set dry-type transformers indoors and coordinate pad-mounted transformers along with their pads, grounding, and terminations.
  • Feeder design, routing, and installation — Feeders are the large conductors that move power between gear. We size, route, and install feeders in conduit, cable tray, or busway, then pull, terminate, and test them with our own electricians.
  • Conductor and conduit sizing — Correct sizing keeps voltage drop, heat, and cost in check. We size conductors and raceways to the load, the run length, and the NEC, verified against the engineered drawings before anything goes in the ground or the wall.
  • Grounding and bonding — A properly grounded and bonded system is the foundation of electrical safety. We install the grounding electrode system, equipment grounding, and bonding throughout the service and distribution.

Standby & Emergency Power

  • Generators and paralleling switchgear — When the utility goes down, generators keep critical systems running. We set generators, run the power and control wiring, and install paralleling switchgear where multiple units share the load.
  • Automatic transfer switches (ATS) — An ATS senses a utility loss and transfers the building to generator power automatically, then back when utility power returns. We install and wire ATS units and coordinate their operation with the gear.
  • Emergency and legally-required standby systems — Code requires certain loads — egress lighting, fire alarm, life-safety — to stay powered. We install NEC Article 700/701 emergency and standby systems, kept separate and identified exactly as the code requires.
  • Load shedding, metering, and monitoring — On generator power, not every load can run at once. We install load-shed controls, metering, and monitoring so the system prioritizes critical loads and the owner can see exactly what is happening.

Where It Applies

Markets we serve

Commercial, industrial, institutional, municipal, and mixed-use projects — statewide, from our base in Tucson.

  • New commercial construction
  • Tenant improvements
  • Service and capacity upgrades
  • Industrial and manufacturing
  • Healthcare and institutional
  • Data and mission-critical facilities

The Design-Build Advantage

Designed, self-performed, and accountable

Because we keep electrical engineering and field crews under one roof, our service & distribution work is constructable, coordinated, and energized by one team — with fewer hand-offs and fewer surprises.

See our electrical engineering
  • Sized with our in-house engineering for real load plus future growth
  • Long-lead switchgear and gear identified and procured early
  • Underground feeders self-performed by our own crews
  • Energized, tested, and inspected to the NEC and the AHJ
  • One team from utility coordination through commissioning

More Electrical

Related capabilities

Explore the rest of our electrical scope, or see the full electrical services overview.

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