What we mean by light commercial
Light commercial covers offices, retail storefronts, and small multi-tenant buildings, the kind of properties that make up most of the commercial stock in Lee, Collier, Charlotte, and Hendry counties. It does not cover industrial plant, heavy manufacturing equipment, or three-phase process machinery. If your building is a strip mall unit, a professional office suite, a small medical or dental office, or a standalone retail space, that's the work we schedule against every week.
A lot of that work looks similar to residential jobs but with different constraints. A tenant buildout needs a subpanel run to code before the space can open. An aging panel in a building that's changed hands a few times needs an honest evaluation before anyone adds load to it. Exterior lighting on a retail building has to hold up outdoors on the coast, not just work on install day.
Typical scheduled hours
Why commercial panels here need more attention than the manual suggests
Southwest Florida's salt air and humidity are hard on any panel that isn't sealed and maintained, and commercial buildings often go years between anyone opening the panel door. Corrosion on lugs, breakers, and bus connections is a real, recurring finding in our service records, not a hypothetical. Repairing corroded panel components is scheduled as its own 2-hour job because it comes up often enough on its own, separate from a full panel swap.
Buildings from certain decades also turn up Federal Pacific or Zinsco panels, brands with a documented history of breakers that don't trip reliably under fault conditions. We schedule a straight evaluation of these panels as a 1-hour visit specifically because the right first step is usually just finding out what you actually have installed, not assuming it needs replacing on the spot.
How a commercial job gets quoted
There's no set price for commercial electrical work and we don't publish one, because a subpanel install in a 1980s strip mall unit and the same job in a new build behind stucco and concrete block are not the same amount of labor. What we do have is the hours we schedule against, which are listed above from our own job records. A site visit tells us the panel condition, the run distance, whether we're working live or can get a shutdown window with the tenant, and what code requires for that specific space.
That visit is what turns into a number. Anyone quoting commercial electrical work over the phone without seeing the panel or the space is guessing, and on a commercial property that guess tends to be wrong in the tenant's favor or ours, neither of which is a good way to start a job.
Common questions
Do you do industrial electrical work?
No. We work on light commercial buildings, offices, retail units, and small multi-tenant spaces. Industrial plant and heavy manufacturing equipment fall outside what we schedule.
How much does a commercial panel upgrade cost?
There's no fixed commercial price, because building age, panel condition, and run distance all change the labor. Our own scheduling shows 8 hours for a standard 200A upgrade and 10 hours for a larger building, but the actual figure comes from a site visit, not a quote over the phone.
Can you upgrade our panel without closing the store for days?
Most panel work needs a shutdown window, but it's usually hours, not days, and can often be scheduled around your operating hours. That gets worked out at the site visit once we know the panel and the building's setup.
We're taking over a retail space with an old panel. What should we check first?
Ask for an evaluation before signing off on the buildout. Older commercial buildings sometimes still have Federal Pacific or Zinsco panels, and we schedule a straight evaluation for exactly that reason, so you know what you're inheriting before you add tenant load to it.
Not sure which of these you have? That is the normal starting point.
Call 239-344-7173Written by the team at Caloosa Electric Service, licensed electrical contractor EC13005838, serving Lee, Collier, Charlotte and Hendry counties since 2000.
200A Panel Upgrade, Standard Building: 8 hours scheduled. 200A Panel Upgrade, Larger/Higher-End Building: 10 hours scheduled. Subpanel Installation (Base): 5 hours scheduled. These are our own figures, not industry averages.
Reviewed by a licensed electrician. Last updated September 2026.