External Wall Insulation in Cornwall

As an approved Wetherby’s external wall insulation specialist, we supply and install high-performance insulation systems for homes and commercial properties throughout Cornwall. Whether you’re looking to improve the energy efficiency of an older property in Redruth, reduce heating costs on a solid-wall home in Wadebridge, or upgrade a new build in Launceston, we provide a complete external wall insulation service — from survey through to the finished render coat. We also cover Camborne, Helston, Liskeard, Saltash, Penryn, Hayle, Par, Fowey, Callington, Bude, and all surrounding areas.

Full External Wall Insulation Systems

We mechanically fix high-performance insulation boards to your property’s exterior walls, followed by a reinforced base coat and a durable, weatherproof render finish. The result is a warmer home, lower energy bills, and a fresh new look — all in one system.

Insulation for Solid Wall Properties

Many of Cornwall’s older homes — stone, block, and solid wall construction — have poor insulation values. External wall insulation is one of the most effective ways to improve thermal performance without losing any internal floor space. We regularly insulate period cottages, bungalows, and pre-war properties across the county.

Range of Render Finishes

External wall insulation doesn’t just improve energy efficiency — it transforms the look of your property. We offer a wide range of finish options including silicone render, acrylic render, and through-coloured systems in a variety of colours and textures to suit your property and your taste.

New Builds & Renovations

External wall insulation isn’t just for older properties. We also install systems on new builds and major renovation projects where meeting building regulations or achieving higher energy performance ratings is required.


Benefits of External Wall Insulation

Lower energy bills — Dramatically reduces heat loss through your walls, keeping your home warmer for less.

Improved comfort — Eliminates cold spots and draughts, creating a more comfortable living environment all year round.

No loss of internal space — Unlike internal insulation, external wall insulation wraps your property from the outside so you keep every inch of floor space inside.

Fresh exterior appearance — A new render finish completely transforms the look of your property.

Reduced condensation & damp — A properly insulated wall reduces the risk of condensation forming on cold internal surfaces.


Why Choose Brokenshire Plastering?

Approved Wetherby’s specialist — Fully trained and approved to install Wetherby’s external wall insulation systems, giving you peace of mind that the job is done right.

Over 25 years in the trade — Decades of plastering and rendering experience means we understand how buildings perform and how to get the best results.

Domestic & commercial — From a single bungalow to multi-property site work, we handle projects of all sizes.

Covering all of Cornwall — Based in Fraddon, near St Columb, we work right across the county from Bude to Penzance.


Get a Free Quote

Thinking about external wall insulation for your property? We offer free, no-obligation quotations. Get in touch today to discuss your project.

Call: 01726 862987
Mobile: 07773 645860
Email: stephen@brokenshireplastering.com


Wall Insulation Gallery | Wetherby's Approved Projects Throughout Cornwall