How to remove wallpaper glue from walls

We've stripped all the wallpaper but there's a sticky residue left on the walls. The paint won't go on smoothly over it. What's the best way to get rid of the old paste?

Asked by Nan on 1st Jun 2026
Expert Trade Answers
"You remove the residue by washing it with a sponge until the stickiness has gone. You can use just water or add washing up liquid."
Answered on 1st Jun 2026 - Member since Oct 2022 - report
"Use warm soapy water itll it is soft you should be able to just peal the strips of wallpaper off if you have any stubborn bits use a putty knife"
Answered on 1st Jun 2026 - Member since Nov 2024 - report
"Hi there, put down a dust sheet along the bottom of the wall. Mix a sugar soap solution in hot water, coat the wall using a sponge or spray, let it stand for 5 minutes until the glue becomes tacky, use a wide scraper to remove the paste dont gouge too deeply into the wall, repeat if required, then allow to dry and give the surface a light sand, your good to go."
Answered on 1st Jun 2026 - Member since Jun 2025 - report
"Warm soapy water leave for 5-10 minutes, use a scraper with a sharp blade to scrape it off"
Answered on 1st Jun 2026 - Member since Sep 2022 - report
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