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How Long Will External Wall Insulation Last on Your Property

The honest answer is that it depends on your property.

A sheltered home with a high-quality silicone render finish and good drainage may see its external wall insulation system last towards the upper end of the expected range.

A more exposed property may need more regular checks, especially if it faces heavy rain, strong winds or coastal conditions.

But with the right system, the right installation and basic maintenance, external wall insulation should be a long-term improvement — not something you need to worry about every few years.

If you are considering external wall insulation for your home, the best starting point is a proper assessment. That way, you can understand what your property needs, what finish would suit it best, and what level of protection and performance you can expect.