The verification nobody does

Electrical work has an unusual property among home trades: bad work is invisible for a long time. A poor paint job is obvious in a week. A poor electrical job can pass unnoticed for years and then present as a fire, a failed inspection, or a declined insurance claim.

That is why the questions you ask before hiring matter more here than almost anywhere else. Here are the nine that actually separate contractors.

1. “Are you licensed in this state, and what is the licence number?”

Electrical licensing is issued by state, and in many places by municipality on top of that. A contractor entirely legitimate one state over may have no standing where you live.

Ask for the number, then verify it with your state licensing board yourself. It takes two minutes online. A contractor who is reluctant to give you a number has answered the question.

2. “Do you carry liability and workers’ compensation insurance?”

Both, and ask for a certificate. Workers’ compensation is the one people skip, and it is the one that matters most to you: if an uninsured worker is injured on your property, that exposure can land on your homeowner’s policy.

3. “Will you pull the permit?”

For anything that changes the service, adds circuits, or is inspected work — the answer should be yes without hesitation.

An offer to skip the permit is sometimes framed as saving you a fee. It is not. It transfers the contractor’s risk to you, and unpermitted electrical work surfaces at exactly the wrong moments: a sale, a refinance, a claim.

4. “Is this quote fixed, and what would change it?”

Every honest quote has conditions. What matters is that they are named up front — “if we open the wall and find aluminium, here is what that adds” — rather than discovered as a change order on day two.

5. “What is the warranty on labour, and what on parts?”

They are different. Labour warranty is the contractor’s. Parts carry the manufacturer’s, usually longer. Both should be in writing.

6. “Who is actually doing the work?”

Some firms sell with a licensed master electrician and staff with apprentices. Apprentices doing supervised work is normal and fine. Apprentices doing unsupervised work is not what you paid for. Ask.

7. “Have you done this specific job before?”

Residential service, commercial, and industrial controls are genuinely different disciplines. An excellent residential electrician is not automatically the right person for a VFD fault, and a good industrial technician may not be your best choice for recessed lighting layout.

8. “Can I see the load calculation?”

Ask this whenever a panel upgrade is recommended. A load calculation is the document that justifies the recommendation. “The panel is only 100 amps” is an observation, not an analysis. Reputable contractors have the calculation and will show it.

9. “What does the diagnostic cost, and is it credited against the repair?”

Most contractors charge for diagnosis, which is fair — locating a fault is skilled work. Many credit it against the repair if you proceed. What you want to avoid is the firm that will not price diagnosis separately, because that is frequently the one intending to replace parts until something works and bill you for each attempt.

Two red flags worth walking away from

Pressure to decide today. Genuine electrical emergencies exist, and in those you should call immediately. But an emergency is a burning smell, not a discount that expires this afternoon.

A quote with no scope. A number with no description of the work is not a quote. It is an opening position, and there is nothing to hold anyone to.

Related guides

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• Cost to rewire a house
• Do i need a whole house surge protector
• Electrical inspection checklist

Summary

Bad electrical work stays invisible for years, so the screening happens before anyone is in your house. Ask for the licence number and verify it with your state board yourself. Ask for certificates for both liability and workers’ compensation — workers’ comp is the one people skip and the one that can land on your homeowner’s policy. A contractor should pull the permit without hesitation, name the conditions that would change a fixed quote, put the labour and parts warranties in writing, and tell you who is actually doing the work. Ask for the load calculation behind any panel-upgrade recommendation, and ask whether the diagnostic fee is credited against the repair.

Frequently Asked Questions

How do I verify an electrician’s licence?

Ask for the licence number, then check it with your state licensing board yourself — it takes about two minutes online. Licensing is issued by state, and in many places by municipality on top of that, so a contractor who is entirely legitimate one state over may have no standing where you live. Reluctance to give you a number has already answered the question.

Why does workers’ compensation insurance matter to me as the homeowner?

Because if an uninsured worker is injured on your property, that exposure can land on your homeowner’s policy. Ask for certificates for both liability and workers’ compensation. Workers’ comp is the one people skip and the one that matters most to you.

Should I let a contractor skip the permit to save the fee?

No. Skipping the permit is sometimes framed as saving you money, but it transfers the contractor’s risk to you. Unpermitted electrical work surfaces at exactly the wrong moments — a sale, a refinance, or a claim.

Is it normal for apprentices to do the work?

Apprentices doing supervised work is normal and fine. Apprentices doing unsupervised work is not what you paid for. Some firms sell with a licensed master electrician and staff with apprentices, so ask who will actually be on site.

What is a load calculation, and when should I ask for one?

It is the document that justifies a panel-upgrade recommendation, and you should ask for it whenever one is recommended. “The panel is only 100 amps” is an observation, not an analysis. Reputable contractors have the calculation and will show it to you.

Should I expect to pay for diagnosis?

Yes, and it is fair — locating a fault is skilled work. Many contractors credit the diagnostic against the repair if you proceed. What you want to avoid is a firm that will not price diagnosis separately, because that is frequently the one intending to replace parts until something works.