When you call an electrician, you'll hear a handful of words thrown around — "on-site estimate," "service call," "inspection," "invoice" — and it's not always clear which ones cost money and which don't. That confusion is fair. The terms sound similar but mean very different things, and the price depends entirely on how much skilled work is involved before we even start the actual job.
Here's the honest, plain-English version of each term, and exactly when it's free and when it's paid.
On-Site Estimate (the free visit, usually)
This is the one most homeowners already know — many people just call it an "on-site estimate." You may also hear it called a site visit or an estimate appointment. They all mean the same thing: the problem or the job is already clear, and we come out to look at it and price it.
Example: you want a Tesla charger added in the garage, or two new outlets in the kitchen, or a ceiling fan swapped. The scope is obvious. We come, measure, check the panel and the run, and give you a number.
- Free when you're nearby in our regular service area across San Mateo and Santa Clara counties.
- A service call fee applies when the address is far out, or when there's no clear scope yet and we have to spend real time figuring out what's going on (more on that below).
So "on-site estimate" is usually free — but only because the job is already understood and the visit is short. The moment the visit turns into detective work or a long drive, it's no longer a quick estimate.
The Estimate Itself (the written quote)
Confusingly, "estimate" is also the name of the document you get afterward. The estimate is the written quote: the scope of work, the materials, and the total price. It's what you review and approve before any work starts. There's no obligation to accept it.
Service Call Fee (a paid trip)
A service call fee is simply a charge for the trip itself — a tech's time to load up, drive out, and assess the situation. We apply it when the visit costs us real time and there's no guaranteed job at the end of it: long-distance addresses, or visits where the problem isn't yet defined and needs diagnosis.
If you book the work, the service call fee is often credited toward the job. Ask when you schedule and we'll tell you exactly how it works for your address.
Electrical Inspection (a paid, in-depth evaluation)
An inspection is a different animal from an estimate. An estimate prices a job you already want done. An inspection is the service — a thorough, methodical evaluation of your home's electrical system to find problems and risks you can't see.
A real electrical inspection includes:
- Testing electrical points (outlets, switches, fixtures) throughout the home
- Verifying that breakers and protective devices actually trip when they should, including GFCI and AFCI testing
- A full visual inspection of the panel, wiring, grounding, and connections
- Identifying potential hazards and risks — for both the current owner and any future owner
- A written report documenting what we found
This is skilled, time-intensive work performed by a qualified professional, and it produces a deliverable you can act on or hand to a buyer, seller, or insurer. That's why an inspection is always paid — you're paying for the expertise and the report, not for a sales visit. Inspections are commonly done before buying or selling a home.
Escrow Inspection
An escrow inspection is a formal inspection tied to a real-estate transaction — when a home is in escrow and the electrical system needs to be evaluated and documented for the sale. It's a fixed, more involved job with a written report on a deadline, so it's a flat, non-refundable fee that we quote up front when you book — the exact amount depends on the size and scope of the home.
Troubleshooting / Diagnostic Inspection
Sometimes the problem is hidden — lights flicker for no obvious reason, a circuit dies intermittently, a breaker trips and no one knows why. There's no clear job to "just price," because first we have to find it. That can take a couple of hours of methodical testing — walking the circuit, using meters, isolating the fault. This is paid diagnostic time. Once we've located the problem, we give you an estimate to fix it. (For a sense of what that looks like, see our guide on why breakers keep tripping.)
Invoice (the bill after the work)
An invoice is the final piece: it's the bill you receive based on work that's actually been completed. An estimate comes before the job (what it will cost); an invoice comes after (what was done and what you owe).
The Simple Rule: Free vs. Paid
If you remember one thing, remember this:
- Free: a quick on-site estimate for a clear job, when you're nearby. We're scoping and pricing work you already want.
- Paid: anything that is the work itself — a long-distance trip (service call), finding a hidden problem (diagnostic), or evaluating and documenting your whole system (inspection). You're paying for skilled time and a result, not a sales call.
It comes down to one question: are we pricing a job you already know you want, or are we doing expert work to figure out what's wrong? The first is usually free. The second is the service you're hiring us for.
Call Fox Electric
Not sure which one you need? Just tell us what's going on. If the job is clear and you're in our area, we'll set up a free on-site estimate. If it needs diagnosis or a full inspection, we'll tell you the cost up front — no surprises. We serve San Mateo and Santa Clara counties, with same-day appointments available.
Call (650) 550-0719 and we'll point you to the right visit for your situation. You can also book a safety inspection or request electrical troubleshooting directly.
