We recently were involved in an insurance claim, right up to the point where we produced the pictures of the service. Magically they didn't want to waste their time on us anymore and blamed the fire suppression company.
If I was in the Vent Cleaning Business, I would be taking pictures of the befores and afters and maybe during also.
All legitimate companies that do good work take pictures right????
I have heard of some companies out there that do not take pictures because they are hacks and don't want the customer to know that they are ripping them off by not doing the whole job or a good job.
I think that I would send pictures to the owner, the insurance company, the fire marshall and the insurance board so if anything happened, there would be enough pics out there floating around that you should not even be called in, just my opinion.
If it is not already standard procedure by taking pictures then I think that it should be for all reputable, professional companies and required by the insurance board or you would not be issued insurance.
I also think that if you are in the Vent Cleaning Business and do shoddy work and a fire happens because you did not do your job correctly then you should be prosecuted and mandatory prison sentence, after all you are being paid for a job that has a good potential for a fire to happen if it is not done correctly.