Last updated on 28th April 2026 by ProGuard Exteriors
ProGuard Exteriors were delegated to repair and protect a townhouse in East London that was suffering from significant water penetration caused by severely blown render above the upper floor windows and around the parapet walls.
Overview
The property was experiencing water ingress due to failed render above the upstairs windows. The render had become severely blown, allowing moisture to penetrate into the building and creating a clear need for targeted remedial works.
The affected areas included the render above the top floor windows and behind the parapet walls leading up to the upper roof. ProGuard Exteriors were appointed to remove the defective render, prepare the substrate correctly and install a long-life protective wall coating system.
Our Response
To begin the works safely, ProGuard Exteriors erected full scaffold access to the front elevation. All windows and doors were carefully masked and protected, and a skip was arranged on site to manage waste throughout the project.
The defective render above the top floor windows and behind the parapet walls was removed back to a sound substrate. Following the render removal, the team applied a universal primer and a premium base coat reinforced with fibre mesh, creating a stable prepared surface for the wall coating application.
The gallery above showcases the East London townhouse restoration, including scaffold setup, removal of blown render around upper windows and parapet walls, reinforced base coat application, and the installation of a flexible Andura Proflex coating to prevent further water ingress.
Final Specification
Scaffold Access: Full scaffold was erected to allow safe access to the front elevation and upper parapet areas.
Protection and Waste Management: Windows and doors were masked and protected, with a skip arranged on site to manage waste.
Render Removal: Severely blown render was removed above the top floor windows and behind the parapet walls to the upper roof.
Priming and Reinforced Base Coat: Universal primer and premium base coat with reinforced fibre mesh were applied to prepare the repaired areas.
Andura Proflex Wall Coating: The entire front elevation and top parapet walls were coated using Andura Proflex long-life wall coating in Polar White.
Benefits Achieved
The completed works addressed the failed render and provided a flexible protective finish designed to help prevent further water ingress.
Water Ingress Protection: The failed render was removed and repaired to stop moisture entering through the affected areas.
Flexible Coating System: Andura Proflex was selected for its elastomeric flexibility and resistance to cracking on traditional rendered properties.
Cleaner Exterior Finish: The Polar White coating delivered a clean, modern appearance across the front elevation and parapet walls.
Long-Life Protection: The wall coating system created a durable protective finish for the repaired elevation.
Why Use ProGuard Exteriors
When a rendered property is suffering from water ingress, correct preparation is essential. ProGuard Exteriors managed the process from access and protection through to render removal, reinforced repairs and final coating application.
Safe Working Setup: Full scaffold access was arranged to ensure the team could work safely at height.
Thorough Preparation: Defective render was removed back to a sound substrate before the new coating system was applied.
Reinforced Repairs: A premium base coat with reinforced fibre mesh was used to strengthen the repaired areas.
Protective Finish: The front elevation and parapet walls were finished with Andura Proflex in Polar White for flexible, crack-resistant protection.
Why It Matters
Water ingress caused by failed render can quickly affect both the appearance and performance of a property. By removing the blown render, reinforcing the repaired sections and applying a flexible long-life wall coating, ProGuard Exteriors helped protect this East London townhouse from further moisture penetration while improving its external appearance.
Request a free site survey and no-obligation quote today to see how ProGuard Exteriors can support your next exterior repair or wall coating project.
ProGuard Exteriors provide wall coatings, render repairs, exterior renovation and protective coating systems for residential and commercial properties.
Whether you’re located in East London, Hackney, Stratford, Bow, Canary Wharf, Shoreditch or nearby areas, our expert service makes us your go-to choice for render repairs and external wall coating solutions to resolve water ingress issues.
Contact our team to discuss water ingress repairs, blown render removal and long-life wall coating solutions for your property across London, Oxfordshire, Hertfordshire, and Buckinghamshire.
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.
Your email address will never be shared. By submitting this form you are agreeing to receive messages from ProGuard ExteriorsProGuard Exteriors Ltd
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
Monday to Friday 8:00am - 6:00pm / Weekends - Closed
