How much does it cost to add skirting boards to a large living room

The previous owner of my house had his plug sockets located in the skirting boards. This was obviously how wiring was done years ago but it isn't what I wanted going forward. As a result I had the house rewired and needed to replace the skirting.

The living room is the largest room in the house as it has no dividing wall making it a "through lounge". In total it is 7.5m x 4m.

Our builder said he would supply and fit 4" skirting board all around the room (navigating two chimney breasts and one fireplace) for £280.

This seemed quite reasonable to me and only took him a couple of days including some other work.

If you have any experience with skirting board that you would like to share, please leave a comment.