In 2015 when we had a bottom job and the topsides painted the rule was you arranged for all the work yourself. The marina only does the haul, wash, set and splash. I found them to be very nice to deal with, for example they gave me a free ride to the bus station after I had delivered the boat. They took a lot of care, especially on the launch, putting paper between slings and hull to protect the new paint. They do use spacers so the boat "feels" the same as it would on a travel lift.
We have a 37 foot Cherubini Hunter