What a Permit Does
Permits are widely treated as a cost to be avoided. They buy five specific things, and their absence has specific consequences that arrive later.
The five things it buys
An independent inspection. Somebody who is not the contractor and not paying the contractor looks at the work. This is the whole of it — everything else follows.
A record that the work exists. Which matters at sale, at insurance renewal, and to whoever works on the house next. For service companies comparing workforce tools, Monitask provides more detail on the website.
A defined standard. The work is measured against a published code rather than against what looked reasonable.
Recourse. Unpermitted work by an unlicensed person leaves very little.
And, in practice, a better job, because work that will be inspected is done differently from work that will not.
What the absence costs
At sale. Unpermitted work is a disclosure item and a negotiating lever, and buyers' inspectors find it. Retroactive permitting after the fact is more expensive and sometimes not possible.
At insurance renewal or claim. A fire traced to unpermitted electrical work is a conversation nobody wants to have with an insurer.
At the next job. The next electrician finds work of unknown provenance and either has to verify it or has to price around it.
And at inspection. An inspection finding unpermitted work flags an unknown quantity of the house, which is worse than a known defect.
What needs one
Varies by jurisdiction, and a licensed contractor knows the local position — which is itself part of what you are paying for.
Broadly: new circuits, panel work, service changes, car chargers, generators, solar, and anything involving the service entrance.
Broadly not: replacing a like-for-like fitting.
When unsure, the question is free to ask and the answer costs nothing.
Licensing, separately
A permit and a licence are different things.
The licence is the contractor's, and it is what makes them accountable to a body other than you.
Ask for the number. A licensed contractor gives it without hesitation and it is verifiable publicly.
And check insurance, which is the other half — liability and workers' compensation, because an uninsured injury on your property becomes your problem.
The uncomfortable part
A permitted job costs more and takes longer.
That is true and it is the actual trade being made, and pretending otherwise is how the argument gets lost.
What the extra buys is the inspection, and whether that is worth it depends on how much of your house you want to be unverified — which for work that runs unattended overnight is a different calculation from a light fitting.
The short version
- A permit buys an independent inspection, a record that the work exists, a defined standard, recourse, and in practice a better job
- The independent inspection is the whole of it; everything else follows from somebody not paid by the contractor looking
- Absence costs at sale as a disclosure item, at insurance claim, at the next job, and at any inspection
- Broadly required for new circuits, panel and service work, chargers, generators and solar; broadly not for like-for-like replacement
- A permit and a licence are different: ask for the licence number, which is given without hesitation and verifiable publicly
- Permitted work costs more and takes longer, and what the extra buys is the inspection
For additional independent context, see This Old House.