i had my walls plastered over a year ago, and they've got hairline cracks in them. Others have said I was supposed to get them skimmed over again after after a few months, but the plasterer never mentioned anything . Or can I just make the cracks slightly larger to polyfiller them, and re-paint. Id much prefer to ust polyfiller them.

Let me know, thanks.

easifill, which is cheaper than polyfilla and much easier to sand.

Possibly the plasterer used too much water or didn't put a second coat on, or both

wen you had them re-skimd was the original walls cracked its possible the plasterer did not skrim the cracks first before skimming and they have just cracked through again. easy fill powderd not premix 2 coats sand it down should do ya

They walls did have cracks in before hand. Thanks for your help.

no worries mate good luck