How to get rid of mould on window sealant

Can mould on window sealant be cleaned properly or does it need replacing? Some of it looks like it’s gone into the sealant rather than just sitting on the surface, and I’m wondering if cleaning is a waste of time.

Asked by Abdul on 1st Feb 2026
Expert Trade Answers
"Hi. It needs to be scraped out and replaced you can’t clean it"
Answered on 1st Feb 2026 - Member since May 2024 - report
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