Home DIY

Could I get an opinion as to whether a quote I've had is in the right ballpark, or wildly out?

Work involves (at a high level) to a 7m x 5m L-shaped living/dining room:

• skimming the walls and ceiling, but no decorative finish
  
• ripping out an old gas fire place, including the mantel, capping gas supply below boards and replastering as a 'void' space
  
• re-boarding the entire floor with ply (but no finish, so carpet/boards extra)
  
• minor electrical work (one new socket)
  
  

All in, I've been quoted £2.8k (ex VAT). Seems reasonable-ish, but this is all fairly new to me...