Roofing company canvassers door-knocking for wind damage insurance claim - Legit or sketchy?

EDIT: The main question here is if it's fraud or any way illegal. More worried about that than the quality of the installer at this point.

Living in a suburban house in a working-class neighborhood, I get a fair amount of door-knockers trying to solicit home improvement services - roofs, windows, and siding are the big ones ($$$).

I actually used to work (very briefly) for one of these companies doing canvassing while in college. I know all the scripts and keywords and tone inflections. It's funny how they are nearly identical company to company. If you're not interested, the trick is just to tell them you're not the homeowner.

A few days ago, was the first time that someone tried to offer roofing services via an insurance claim, although I have read other stories about this online. They informed me that there was a major storm last summer with "60+ mph winds" which is the threshold required to qualify an insurance claim, so they said. They said, "we're doing this for one of your neighbors down the street" (which is a script they always say) but were surprisingly knowledgeable about the process and confident they could get my insurance to replace the roof. The person was fully prepared to hop up on the roof and do an assessment. He quickly distinguished himself from a typical solicitor. We even had a great conversation and there was none of that "let me take down your information and set you up for an appointment with a 'project manager' (read: high pressure salesperson)".

I was looking for further suspicious scripts that would tip me off that this is just the typical high-pressure sales tactic to sell me on an inflated deal that they then sub-contract out to the lowest bidders in an unmarked van.

Even being on guard, I didn't feel like that (although I'm willing to bet it will still be subbed out), but rather them trying to get a win-win scenario via a legitimate insurance claim, which seems fine.

I guess legitimate is the keyword here.

I let them get on the roof and they immediately found, what appeared to me, to be reasonable damage, although I wouldn't have known to claim it or even look for it. He was surprisingly thorough and everything he said made sense. He pointed out several shingles that had been lifted and showed me the "repair test", which is if the shingle is too brittle for the roof to be repaired. Again, made sense to me. He wasn't even trying to exaggerate the claims or any indication of 'milking it'.

Then the next step is to initiate the insurance claim. "Oh boy, here we go", I thought. I got flashbacks to when solicitors have knocked on my door asking for my Pepco account number - "we can save you money, just show us a copy of your bill", or some other nefarious scheme.

He didn't even ask for my policy number. He just supplied me the phone number and explained the prompts (clearly very experienced with multiple insurance companies) to get to the right place. "After you've initiated the claim, keep me in the loop." I told the agent what damage had been found, which I saw firsthand, and that was it.

Now just waiting for an adjustor.

I usually don't let things get this far, but everything seemed pretty logical and no-pressure. I thought I would come here anyway to confirm the legitimacy of this and possibly spread the word to others.