How much would it cost to replace a scratched plastic sheet floor in a kitchen? (approx 3x4 m2)?
Not enough info to tell you. If you're doing the work yourself, go to a home store and price the sheet goods you want to replace it with. Read the installation directions to see what you have to do, and buy or rent the appropriate tools. Most home stores can give you plenty of advice on what you need to do. If you're not going to do the work, call some handymen and get some bids. Check their references and go with the one you like best.
