External Wall Insulation in
Longwell Green

Longwell Green's 1970s-80s properties have unfilled cavities — cavity wall insulation is usually the better answer than EWI here. If the cavity's already been filled (or you can see no sign of previous fill), EWI with 90mm EPS over the existing render is still effective.

If your Bristol home was built before 1990, chances are it has no cavity wall insulation and minimal loft insulation. The result: heat loss through the walls (up to 35% of your total heat loss), cold spots around window reveals, condensation on inside walls, and high energy bills. External Wall Insulation fixes all of this in one go. We fix 80-150mm of high-performance insulation board to the outside of your property, then apply a reinforced base coat and a silicone or monocouche render finish. The result: a 25-35% reduction in heating bills, elimination of condensation, and a fresh modern exterior. EWI typically pays for itself in 8-12 years through energy savings. We install Weber, K Rend and Johnstone's EWI systems.

Longwell Green is a well-established 1970s-80s suburb east of Bristol, with the A4174 ring road running along its northern edge. The housing is dominated by detached and semi-detached homes from that era — typically 3-4 bed, 1,000-1,500 sq ft — most of which were originally finished in pebbledash or tyrolean render that's now well past its expected life. We render a lot of whole streets here — homeowners often coordinate with neighbours to get consistent finishes across multiple properties. The newer builds on the edges (post-2000) are also increasingly needing re-rendering.