Plaster has hairline cracks

I have recently got my walls skimmed. After a day I noticed hairline cracks like you get when a window is cracked. Plasterer says it’s fine and happened due to the hot weather outside. He says it’s fine to paint after whitewashing the walls. Should I stop him from painting as I’m not sure if this is normal to have those cracks. I don’t want the cracks to reappear after painting as it’s a waste of my paint and time. Please help me?

Asked by Habib on 20th Jun 2025
Expert Trade Answers
"Hi if it’s cracked already then it will definitely come back once painted ,paint don’t stop cracks it will hide it for a short time then come back
,the wall should have been meshed,this method
Reinforces the work so a plasterer can safely say it shouldn’t crack again"
Answered on 20th Jun 2025 - Member since Apr 2025 - report
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