I was doing some research on ceramic coatings as I wanted to apply them on my car's exteriors. I am lazy to wash the car on a regular basis.
For professional detailers, it seems that it costs between $500-$800 for coatings that is covered with at least three years' warranty. Not exactly sure what sort of warranty coverage does that entails. The pricier packages (>$1,000) have more layers of the coating applied. I am also skeptical about the layer counts; as a consumer, how can I even verify the number of layers applied? I think at the end of the day, as long as the car exterior is covered with the ceramic coating comprehensively, I am fine with that. After that it's how much the provided warranty covers, e.g. touch-up/re-coat?
Regarding mobile groomers, I think they apply ceramic coating spray/wax, which seem to typically last for nine to twelve months. This means scheduling appointments with them a half-yearly or yearly basis to re-coat the car. I don't think there is much price savings to get mobile groomers' services v.s. professional detailers. It may even be pricier but I suppose this is largely addressed with their at-your-doorstep services.
Will be doing mine next week with the detailer a few minutes drive from my place. Should be interesting to see how long the coating can last.
I believe I did see someone offering a 10H coating. Quite funny to be honest, pretty much scratch-proof since only diamond can scratch at 10H. Now this is marketing bullcrap.
This guy reviewed some of the ceramic coatings available in the NA market which I find it useful and interesting: