From the perspective of a detailer, the most labour intenstive work will be the paint prep. Seems like a waste to do all that work only for it to be coated with a sealant that will wear off in a few weeks/months.“It would be £450 to decontaminate, single stage machine polish and apply the appropriate exterior/interior protections.
That would be 2 coats of sealant to the bodywork, front/rear glass sealed, wheel faces coated with sealant and I usually throw in interior protections with any package of this type (so a leather sealant/mat sealant etc).”
You'd be better off paying an extra £100 for ceramic coating. It takes very little extra time if you've got the right conditions to apply it.
If the above includes ceramic coating, then it is a good deal.
Don't bother paying extra for any spray-on interior or wheel sealants. They'll be gone in an instant, you'll never see the value back and can do them yourself easily.
