17/10/2026
π Blocking a gap and proofing it properly aren't the same thing. Expanding foam and wire wool look like a fix, but rodents can chew through both within days β so the entry point reopens almost as fast as it closed.
Proper proofing uses materials rodents genuinely can't get through, like professional-grade galvanised steel mesh, and it's done alongside treatment, not instead of it, so you're not sealing anything in.
If you had rodent activity flagged last month, now's the time to get it proofed properly before winter.
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