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External Wall Insulation (EWI) frequently asked questions (FAQs).

12 01, 2026

Does external wall insulation help with damp and condensation?

2026-01-12T13:24:05+00:00|

External wall insulation can help reduce condensation and penetrating damp by keeping walls warmer and better protected from the weather. For best results, insulation should be installed alongside proper household ventilation, in line with PAS 2035 retrofit best practice. This may include background trickle ventilation, mechanical extract ventilation in wet rooms such as bathrooms and [...]

12 01, 2026

What render systems do you use?

2026-01-12T13:22:11+00:00|

We install render systems from several leading manufacturers. Our preferred system is Johnstone’s Stormshield, chosen for its durability, weather resistance, and high-quality finish, helping to protect your property while delivering long-lasting performance.

12 01, 2026

What types of properties are suitable for external wall insulation?

2026-01-12T13:13:41+00:00|

External wall insulation is suitable for most property construction types, including solid wall, cavity wall, brick, block, concrete, and many system-built and rendered properties. It can be installed on houses, bungalows, and low-rise residential buildings where the external walls are structurally sound. Final suitability is confirmed following a professional survey.

12 01, 2026

What is external wall insulation?

2026-01-12T13:13:20+00:00|

External wall insulation involves fixing an insulating layer to the outside of your property’s walls, which is then finished with a durable render or cladding system. This creates a continuous thermal barrier while also improving the look of your home.

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