Last updated on 20th May 2026 by ProGuard Exteriors
ProGuard Exteriors were appointed to complete an external wall insulation transformation for homeowners who wanted to improve the energy efficiency of their property while retaining as much of the original character and appearance of the home as possible.
Overview
The homeowners wanted to install an external wall insulation system to improve the energy efficiency of the home. At the same time, it was important that the finished project preserved the look of the original house as closely as possible, rather than creating a finish that felt too different from the existing property.
Following a detailed survey, the project was specified using 60mm Kingspan K5 insulation boards. This provided strong thermal improvement without the additional thickness often associated with Rockwool or EPS boards, helping the home benefit from improved performance while minimising changes to existing architectural details.
Our Response
To keep the appearance of the original home, ProGuard Exteriors used a carefully considered combination of finishes. The front pebbledash elevations were completed with a modern silicone render system, while the side and rear elevations were finished with acrylic brick slips selected to match the existing brickwork.
This approach allowed the property to receive a significant external wall insulation upgrade while maintaining its established appearance. ProGuard managed the full project from start to finish, including scaffolding, access arrangements and waste removal.
The gallery above showcases this external wall insulation transformation, including the installation of 60mm Kingspan K5 insulation, silicone render to the front elevations, and acrylic brick slips carefully matched to the existing brickwork.
Final Specification
60mm Kingspan K5 Insulation: Installed to improve energy efficiency while avoiding the extra thickness often associated with Rockwool or EPS boards.
Silicone Render Finish: Applied to the front pebbledash elevations to create a clean, modern finish while respecting the original appearance.
Acrylic Brick Slips: Installed to the side and rear elevations, carefully selected to match the existing brickwork.
Managed Access and Waste Removal: Scaffolding and waste removal were fully managed by ProGuard throughout the project.
Certification and Warranty: As members of the Competent Person Scheme, ProGuard were able to self-certify the installation and provide Building Control certification alongside the standard warranty.
Benefits Achieved
The completed project delivered a practical energy efficiency upgrade while keeping the home’s original character and external appearance central to the specification.
Improved Energy Efficiency: The 60mm Kingspan K5 system was specified to improve the thermal performance of the home.
Slimmer EWI Build-Up: The system helped achieve performance improvements without the thickness normally associated with Rockwool or EPS alternatives.
Original Character Retained: Silicone render and matching acrylic brick slips helped preserve the established look of the property.
Fully Managed Delivery: The project was completed in approximately four weeks, with scaffolding and waste removal managed from start to finish.
Why Use ProGuard Exteriors
External wall insulation projects need careful specification, especially when homeowners want to improve efficiency without losing the look and character of the original property.
Detailed Survey: The system was specified following a detailed survey of the property and the homeowner’s objectives.
Tailored Finish Selection: Different finishes were used across the front, side and rear elevations to suit the original appearance of the home.
Turnkey Project Management: ProGuard managed the installation, scaffolding, access and waste removal throughout.
Certification Support: Competent Person Scheme membership allowed ProGuard to self-certify the job and provide Building Control certification.
Why It Matters
For homeowners who want better energy efficiency without dramatically changing how their property looks, the right external wall insulation specification is essential. By combining 60mm Kingspan K5 insulation, silicone render and acrylic brick slips, this project delivered improved performance while retaining the home’s original appearance as much as possible.
Request a free site survey and no-obligation quote today to see how ProGuard Exteriors can support your external wall insulation project.
ProGuard Exteriors deliver external wall insulation, silicone render, acrylic brick slip finishes and energy efficiency upgrades for homeowners looking for practical, well-managed exterior improvements.
Contact our team to discuss EWI systems, building control certification and full turnkey external refurbishment works.
ACCREDITED & FULLY INSURED
Our installers are fully insured and accredited by leading industry bodies. Whether working on residential rendering, external wall insulation, or large commercial projects, our highly trained team ensures reliable results with complete safety and compliance.
TRUSTMARK APPROVED
ProGuard Exteriors is endorsed by Trustmark and QualityMark Protection, guaranteeing that our services meet the highest industry standards. These recognitions provide assurance of quality, reliability, and professionalism across all our insulation and rendering solutions.
FREE QUOTES
ProGuard Exteriors offers free, no-obligation quotations for all spray cork, wall coating, insulation, and rendering projects. Whether you’re refreshing a home facade or upgrading a large commercial property, our experts are ready to help you achieve lasting protection and style.
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Registered Office: 4 Cromwell Court, New Street, Aylesbury, Bucks HP20 2PB
Registered in England and Wales No. 10352234 | VAT Number: 265 6002 17
enquiries@proguardexteriors.co.uk
03316 300 082
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