I wish people would stop with the jailhouse lawyer arguments. If a licensed electrician did the work, then "they" wouldn't have a cause to deny your warranty claim or your fire insurance claim. If however you did the work yourself, and they denied the claim, then it's up to you to file a lawsuit. And how long do you think it would take for a competent lawyer to demonstrate on the stand that you don't know all the relevant code?
I am not a lawyer, nor are the "do-it-yourself they can't prove it" advocates. Just because something is "not illegal" doesn't mean it's "a good idea".
You're saying that a company
can't deny a claim because XYZ electrician did the work (allegedly, right? They don't actually
know) but that they
will deny a claim because you DIY the install? That's laughable.
The company either
will or
will not deny the claim. Period. It doesn't matter who did the work. If you think they'll deny you even when you do everything right (or paid an electrician to do everything for you) then you
will have to go to court. Period.
And this isn't unique to warranty issues, btw. That's just how the American system works. If two parties can't agree, then the courts are how you compel them.
FWIW, the Magnuson-Moss Warranty Act is
one of the laws that can protect you. It states that the onus is on the manufacturer to demonstrate the product was abused or improperly installed/used.
You can never guarantee that you wouldn't end up in court. An electrician certainly doesn't guarantee that.
And knowing
all the relevant codes is irrelevant. They must demonstrate that you did something wrong and THAT caused the fault.
No electrician knows ALL the code. No inspector knows ALL the code. Even when electricians and inspectors think they know a code they often disagree with each other, anyway. The same goes for lawyers, btw...
If you're not comfortable DIY'ing your install, then don't. But it's silly to tell others that DIY is a "bad idea".
I DIY'd my install. Got it permitted and inspected, too. Inspector said I did a great job, and he commented that many of the jobs he visits for "professional electricians" aren't as neat. I'm not surprised. It's MY home. I CARE. I wasn't worried about rushing the job so I could cash a check and move to the next gig.