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Guides & Advice

Straight answers on external wall insulation

No sales pitch, just plain-English guides written for homeowners across East London and Essex: what things cost, what tends to go wrong, and what the planning rules actually say.

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We publish a new guide most months, based on the questions homeowners actually ask us.

ECO4 & GBIS

Had EWI Fitted Under ECO4 or GBIS? What to Do Next

What the government's insulation check means, who pays for repairs, and what to do next.

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Planning

Does External Wall Insulation Need Planning Permission?

Rules on permitted development, conservation areas, listed buildings and Article 4 directions, and how they apply across East London and Essex.

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Costs & Grants

External Wall Insulation Costs and Grants

What EWI typically costs, which grant and funding schemes exist, and how to tell a fair quote from an inflated one.

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Problems & Fixes

Common EWI Problems and How to Fix Them

Cracking, damp and delamination: what causes these issues, how to spot them early, and what a proper repair involves.

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New to external wall insulation altogether? Start with our main guide covering how EWI systems work, what suits different property types, and what to expect from start to finish.

The Full EWI Guide

Have a question we have not covered?

Every property is different. If you cannot find what you are looking for here, get in touch and we will give you a straight answer, free of charge and with no obligation.