Do I need a work permit for one day of self-employment in France?

[ArchimedesScrew]

I'm struggling to find this info online. Hoping someone here might know.

I need to send a self-employed carpenter to do a one day job in France. He'll travel one one day and return the next.

He needs to take his van and tools etc.

Lots of info online for employers making applications for their employees but I can't find exactly what I need.

I've called a few different numbers, some ring out and another 'invites' me to look at their website. Does anyone have any pointers for me, please?

The work will be paid for in the UK @dogcatkitten.

I think you could but the only issue is that you need a “responsible person” actually in France

I'm not sure of the definition of a responsible person @jade3081. Could that be the client?

Yep could basically be anyone based in France that is prepared to be responsible for the works.

client could also be the employer as well I guess