I want to replace the vinyl flooring in the flat I bought, since the old one was full of bumps and bloated in some places. When I took the old one out, I noticed that it was very poorly done, with remannings of whatever was previously there.

So my question is, do I have to do anything before laying new on-click vinyl here? What would be the best and easiest way to scrape pieces and make the floor level?

Current state of the subfloor

Current state of the subfloor

Current state of the subfloor

Current state of the subfloor

  • what year was the place built? Jul 4, 2022 at 21:40
  • Have you tried soaking the adhesive with water? Some adhesives will soften with water and can then be scraped away. Jul 5, 2022 at 2:24
  • It need not be level, just flat, which is much easier. Drag a board/ruler over it and scrape off any highpoints that create a fulcrum. I would also pour clay slip in any major divots to fill them securely. Lastly, shell out for some underlayment like foil-backed foam, which gives all the tiny bumps some absorption margin before they lift up the rigid planks and generally makes the floor feel more secure and quiet.
    – dandavis
    Jul 5, 2022 at 19:03

2 Answers 2


You aren't going to like this answer. The best way to do this, and I know from experience, is to get a floor scraper, like the one shown below, from your home store and go to town scraping the floor. You've got all sorts of stuff left over from previous floors and you need to remove all that if you want a quality job on the floor you're going to lay. Floor grinders or spreading solvents could work depending on the adhesives but in the long run, the scraper will do a better, cleaner job.



Remove any loose particle and organic residue.

Get self leveling concrete made for that purpose.

Apply it per instructions.


At minimum thickness 1/8 of inch, aprox 48 sqft




  • I had friends do this, $18,000 (300 bags) later they had a nice flat floor for hardwood. They used a professional hardwood floor installation company to do the leveling. Jul 4, 2022 at 23:23
  • @FreshCodemonger 300 bags = 7,000 to 14,000 sqft ??? Now that is a home size !!
    – Traveler
    Jul 4, 2022 at 23:58
  • I think 4000 sq ft. It really depends how out of level your floor is across your house. If you go transition free and have 35' open span then you could be 2"-3" out over this distance. If you further have some low spots and high spots and you decide the best approach is flood to the high then you are filling up to 5" everywhere except the high spot. Jul 5, 2022 at 6:40
  • 1
    Seems that was an unfortunate decision on their part, @FreshCodemonger. The floor doesn't need to be level, just smooth!
    – FreeMan
    Jul 5, 2022 at 12:37
  • @FreeMan wow, so all the floor leveling industry are just fakes ?
    – Traveler
    Jul 5, 2022 at 16:00

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