External Wall Insulation for Older Caterham Properties

External Wall Insulation is a system that wraps a solid-wall property in high-performance insulation board finished with a premium decorative render. Polished Venetian installs it for homes across Caterham, Southeast London, cutting heat loss and refreshing the exterior in a single project, with the thermal upgrade and a smart new facade delivered together. Whether the job is in Caterham or a short hop away in Kent Street or Goose Green, our Southeast London coverage from Dartford means the same team and the same standard turns up.

Every EWI project follows the same disciplined sequence. It starts with an initial consultation and a free site visit to assess the wall type and condition, then moves to surface preparation and fixing the insulation boards, followed by the artisan application of the decorative render finish coat, and rounded off with ongoing support for any aftercare questions. Each stage sets up the next.

EWI is particularly beneficial for older properties with solid walls that lack a cavity for traditional insulation. Where a cavity-wall home can be insulated from within the wall, a solid-wall home cannot, so insulating from the outside is often the most effective option. It upgrades the whole envelope at once without losing any internal floor space.

Our gallery is built from genuine photographs of our own completed projects, not stock images, so you can judge the real render finish and colours before you make contact. To discuss External Wall Insulation for your Caterham property, call us or request a free quote.