Is this a reasonable request?

[Mammasweetpeapod]

Hi, I'm wanting to decorate my daughters new bedroom so my son can move into her old one and with one thing after another have been looking at hiring a decorator. They are reasonably priced but have messed me around once already. The night before due to start they have emailed to ask if I have the necessary tools for the job ie scrappers, rollers and paint brushes. Is this normal for me to provide these things.

No
The painter decorater we use brings everything
All I've ever provided was the wallpaper we chose
He brings paint , all brushes , paste and just gets on with it

Does your mechanic ask if you've brought your spanner with you?

Any decent decorator provides all those, not least because your idea of a good paintbrush won't be the same as his.
Standard is customer provides wallpaper only, sometimes the paint but most decorators will provide the paint you choose. They often prefer the trade stuff

No, I'd expect a decorator to provide their own tools, and not be prepared to work with the Basics ones customers might buy. Especially stuff like brushes. The only exception would be if you are basically hiring someone unskilled, eg a student, for labour.

Have you checked their insurance? If they rely on your dustsheets, what if they get paint on your floors/carpets?

That's not a good start at all, never heard of that. Sounds unprofessional, I'd get another couple of quotes. In my experience they aren't cheap either.

My db was a painter & decorator. He had his own kit and wouldn't have used my diy stuff if I'd begged.