Cost to tile a garage roof?

[Jude1234]

As per the title how much would it cost for a roof tiler to tile my garage roof including membrane etc.  The tiles were already there. Not a great photo as I wasn't actually taking the photo to upload here but the photo shows about a third of the roof. 

[Redoctober]

This was our quote for our carport/ shed - see image - measures 7m x 6m deep.

 

Supply and erect scaffolding to front and back of car-port to gutter level.

Supply and fit new plastic deep-flow black gutters and fittings including  downpipes.

Supply and lay new tyvek breather membrane to sarking. [Scottish thing]

Supply and grade new Cupa H3 slates

Slate roof (Using Copper Nails)

Supply and fit new ridges to match house.

£4182.00  (Zero Rated).