Best External Wall Insulation in the UK – Comparison & Buying Guide [2025]

External wall insulation can reduce your heating bills by £200-700 annually while increasing property value by 5-10%. Our comprehensive 2025 guide compares the best EWI materials, costs, and certified installers across the UK.

Common External Wall Insulation Problems and How to Avoid Them

Thinking about insulating your home’s exterior walls? While external wall insulation can dramatically cut your energy bills and boost comfort, poor installation can turn it into a costly nightmare. From moisture damage and cracking render to hidden thermal bridges and system incompatibilities, many UK homeowners are learning the hard way that not all installations are equal.

External Wall Insulation vs Internal Insulation: Which is Right for Your UK Home?

Are you stuck between external wall insulation vs internal insulation for your UK home? You’re not alone. This critical decision affects everything from your energy bills to your living space, and getting it wrong could cost you thousands of pounds in wasted investment. With external wall insulation potentially delivering 30% better energy efficiency but costing 60% more upfront, while internal systems offer budget-friendly installation but permanent space loss, the choice isn’t straightforward

Best Materials for External Wall Insulation in the UK (2025 Guide)

Best external wall insulation materials in the UK for 2025? In this expert guide, we compare the most effective components — from graphite EPS to adhesives and finishing renders. Discover which materials offer the best performance, value, and insulation efficiency.