Failed sealant can crack, detach or become difficult to clean, allowing drafts or moisture into joints depending on location.
Understanding the issue
Failed sealant can crack, detach or become difficult to clean, allowing drafts or moisture into joints depending on location.
What to check
Old loose material should be removed carefully and surfaces prepared for the sealant specified for that joint. Masking can help create a neater line.
When to get advice
Sealant cannot compensate for structural movement, active leaks or badly fitted frames; those causes need separate attention.
This is general information, not a substitute for inspecting your property. Do not work on gas equipment or live electrical parts unless appropriately qualified. If there is immediate danger, call 999. If you smell gas or suspect a gas escape, leave the affected area and call the National Gas Emergency Service on 0800 111 999 from a safe location. Do not operate electrical switches or use naked flames.
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