Services · Tucson, Arizona
Something in the building is tripping, flickering, humming, or running hot — and nobody can tell you why. Arizona Electrical Solutions runs scheduled daytime service calls across Tucson's commercial buildings: licensed electricians who troubleshoot systematically — symptom, circuit, cause — and repair what they find to code. Tell us the symptom when you book and we'll fit urgent calls into the earliest slot. Request a service call →
Repair & Troubleshooting
Commercial electrical faults rarely announce themselves clearly. A breaker that trips every afternoon, lights that dim when the compressor starts, a burning smell nobody can place, half a tenant space dead after a storm — the symptom is usually two or three steps removed from the cause. So a commercial electrician service call from us works the way our field guides teach it: reproduce the symptom, isolate the circuit, and prove the cause with measurements before touching a part. Repairs happen under our CR-11 electrical license, on a scheduled weekday call, in buildings that stay occupied while we work.
This page is about fixing what has already failed. For the inspections and scheduled upkeep that keep failures from happening, see our commercial electrical maintenance program — and for the full scope we self-perform, our commercial electrician page.
Troubleshooting starts with what the building is doing, not with parts-swapping. We reproduce the symptom, split the circuit until the fault is cornered, and confirm the cause with voltage, current, and rotation measurements — the same discipline our field team publishes in its guides.
Phase & voltage field guide →A thermal camera on gear under load finds the loose termination before it burns, and insulation-resistance testing tells us whether a motor or feeder is actually failing or just inconveniently tripping — measured against the same criteria as our published megger procedure.
Megger testing field guide →Failed breakers, burned terminations, and damaged feeders — repaired to the current NEC, terminations torqued per 110.14(D), labeled, and documented. Holding an inspection or fire-marshal notice instead? That is compliance work, and it has its own page: electrical code corrections.
Service & distribution scope →Scoping It
A service call goes faster — and costs less — when the first hour on site is diagnosis instead of discovery. Four things worth gathering before you book:
The panel with the door open, the breaker that tripped, and the directory if there is one. It tells us the manufacturer, vintage, and likely parts before anyone rolls — including whether we should be sourcing a breaker that hasn't been manufactured in twenty years.
What tripped or went dark, whether it resets, and the pattern. Every afternoon points at heat and load; during monsoon storms points at surge or water intrusion; when a specific machine starts points straight at that circuit. The pattern is half the diagnosis.
New equipment, a tenant buildout, a storm, utility work on the street, a trip that got reset and forgotten last month. Electrical faults usually follow a change, and knowing what changed can save hours of diagnostic time you would otherwise pay for.
Where the gear is, who has keys, whether the space is occupied during the day, and any window when a brief planned outage would be acceptable. We schedule daytime weekday calls, so access details up front keep the visit on schedule instead of waiting on a locked room.
Tucson Failure Modes
Run enough service calls in one climate and the failures repeat. Tucson's heat works on connections: conductors cycle from cool mornings to 110-degree afternoons thousands of times, and terminations that were never torqued to specification — the requirement NEC 110.14(D) now makes explicit — loosen, heat, and eventually burn. Monsoon season adds its own casualties: surge-damaged boards, drives, and controls, water in exterior gear, and faults that stay invisible until the first storm finds them.
Older buildings layer on two more. Aluminum feeder terminations from earlier decades that have relaxed and oxidized under load. And tenant spaces improved three or four times over, where multiwire branch circuits share neutrals in ways nobody documented — neutrals carrying more than anyone planned, behind panel directories that stopped matching reality two tenants ago.
Repair or Replace
An honest repair call includes the question nobody enjoys: is this failure isolated, or is the gear telling you something? A failed breaker in a healthy panel is a repair. The third failed breaker in a panel whose manufacturer disappeared decades ago, with spares available only through reclamation suppliers, is a capacity and reliability decision — and we will say so, with measurements attached, instead of quietly selling repairs forever.
When the answer points at replacement, the same company carries it: our panel and service upgrade crews handle the load calculations, the utility coordination, and the phased changeover. And when the answer is that the failure was preventable, the fix is a maintenance program that catches the next one during a scheduled inspection instead of a shutdown.
Self-Performed
No subcontracted diagnosis handed to somebody else's repair crew. The same licensed electricians measure, find, fix, and document — on a scheduled call, during your business day.
Thermal imaging, voltage and current readings, and insulation-resistance testing on the gear while the building runs — so the repair targets the fault that exists, not the part that was easiest to blame.
Terminations torqued to specification, replacement parts rated for where they land, labels and directories updated — and a written record of what failed, why, and what to watch.
FAQ
We run scheduled service calls during business hours, Monday through Friday — tell us the symptom when you book and we'll fit urgent calls into the earliest slot. Our crews start at 6 a.m., so the first slot of the day is earlier than most contractors answer their phones. We are deliberately not a 24/7 emergency dispatcher, and we won't pretend to be one. If equipment is actively arcing, smoking, or burning, shut it off at the disconnect if you can do so safely and call 911 first — then call us for the repair.
No. We work on commercial, industrial, and institutional buildings — offices, retail, warehouses, clinics, and public facilities — for the owners, developers, and property managers who run them. If that describes your building, this is exactly the work we do every week.
Measure before replacing. A breaker trips for one of a few reasons — overload, short circuit, ground fault, heat, or a breaker that has itself failed — and each leaves different evidence. We record the load on the circuit, thermal-image the connection points, isolate sections of the circuit, and megger conductors or motors where insulation is suspect. Then we fix the cause. Swapping the breaker without the measurements just resets the clock on the same failure.
Mostly, yes — and some of it actually requires the building running, because thermal imaging only shows a heating termination when there is load on it. Diagnosis happens live where it is safe to work that way; repairs that need an outage get scheduled for a window your operation agrees to, and you hear about it before, not after.
You get the finding with the evidence behind it — the readings, the images, and what they mean — plus a scoped price for the real fix, whether that is a re-fed circuit, replaced gear, or a full panel or service upgrade. The same company carries the upgrade, so nothing is lost in a handoff between the contractor who found the problem and the one who fixes it.
Yes — that work has its own page. See electrical code corrections for how we turn a correction notice, fire-marshal finding, or insurance report into a scoped, permitted, re-inspected fix.
The drivers: diagnostic time (an intermittent fault that appears once a week costs more to find than a dead circuit), access (gear above the ceiling grid of an occupied office is slower than an open electrical room), parts (a stocked breaker versus an obsolete one sourced through a reclamation supplier), and whether the fix is one termination or a pattern across the whole panel. Describe the symptom, send a photo of the panel, and we'll quote the diagnostic visit up front — then come back with a scoped price for the repair it finds.
Related Services
One contractor carries the whole scope. See every service we self-perform.
Panel and switchgear inspections, lighting upkeep, and life-safety testing.
Panelboard, switchboard, and service-entrance upgrades with load calcs, TEP coordination, and phased shutdowns.
The full commercial electrical scope, self-performed across the Tucson metro.
Short-circuit, coordination, and arc-flash analysis with labels and corrections.
Describe the symptom, send a photo of the panel, and tell us when the space is accessible. We'll book the service call, find the cause, and come back with a scoped price for the fix.
Request a Bid Call (520) 308-6235