Case Study: Silicone Render Renovation & EWI Installation in Backwell

This property in Backwell required a full insulation upgrade along with a high-quality silicone render renovation. The homeowner wanted improved thermal performance without bulky insulation, plus a clean, modern finish that would completely refresh the look of the property.

Webster SRS specified a high-performance system designed for long-term durability and improved energy efficiency:

• Kingspan K5 external wall insulation
• VPI Rheamix Mono board adhesive and basecoat
• Crepilane Silicone Render Topcoat for a clean, weather-resistant finish

This combination delivers excellent adhesion, high thermal performance, and a flexible, breathable silicone finish.

Our team followed a detailed, methodical installation process to ensure both insulation performance and a flawless external finish:

• Protected floors, windows, soffits, and cladding
• Applied K5 insulation boards and mechanically fixed them using insulation anchors
• Installed window-sill extensions to accommodate the increased wall depth
• Applied a reinforced mesh basecoat for stability and crack resistance
• Completed the project with a Crepilane silicone top coat for a smooth, modern appearance

All work was completed to industry standards to maximise the longevity and effectiveness of the insulation system.

The finished project delivers a transformed exterior that looks immaculate and performs exceptionally well.

• The insulation was installed to full industry standards
• The silicone render finish is clean, crisp, and consistent
• The property was left spotless and tidy
• The homeowner was pleased with both the appearance and the improved energy efficiency of their home

This Backwell property now benefits from a warmer interior, reduced energy costs, and a fresh new exterior built to last.

If your render is showing its age or you’d like a clean, modern external rendering finish that lasts, contact Webster SRS. We provide specialist rendering services, external wall insulation (EWI), and thin coat silicone systems across Bristol, South West, and South Wales—delivering durable, high-quality results for both domestic and commercial buildings.