Last updated on 10th August 2026 by ProGuard Exteriors

ProGuard Exteriors completed a spray cork wall coating transformation in Rushden, North Northamptonshire on a part brick, part rendered property showing signs of deterioration.

The rear elevations were a key concern, where the existing render had failed and left large blown areas requiring repair before any new coating system could be applied.

Overview

The homeowner wanted to improve and protect a property made up of mixed external substrates, with both brickwork and rendered areas present across the home. The existing exterior had begun to deteriorate, particularly to the rear walls where failed render had created large blown sections.

Because the property included both brick and render, the aim was to repair the defective areas properly and then bring the exterior together with one consistent, durable finish. Following assessment, ProGuard Exteriors recommended a CorkSol insulated render coating system to refresh the appearance of the home while adding the benefits of a flexible, insulated and long-lasting exterior coating.

Our Response

Before the CorkSol system could be applied, the failed rendered sections were repaired using a fibre reinforced render base coat. This helped restore the defective areas and create a stronger surface suitable for the new insulated coating system.

Once the repairs were complete, the whole house was given a coat of primer to improve adhesion and ensure the CorkSol system could be applied correctly to both the brick and rendered surfaces. This preparation stage was essential for achieving a consistent, durable finish across the different external substrates before the property was sprayed with three coats of CorkSol insulated render coating in the customer’s chosen colour.

The gallery above showcases this Rushden CorkSol transformation, including failed rear render repairs, fibre reinforced base coat preparation, full-house priming, and three coats of insulated spray cork coating applied across the mixed brick and rendered exterior.

Final Specification

Property Assessment: Assessed the part brick, part rendered house in Rushden, North Northamptonshire and identified deterioration, especially to the rear elevations.

Failed Render Repairs: Repaired large blown areas where the existing render had failed to the rear walls.

Fibre Reinforced Base Coat: Prepared and repaired the defective rendered sections using a fibre reinforced render base coat to create a stronger surface.

Full Primer Coat: Applied a primer coat to the whole house to improve adhesion across both brick and rendered surfaces.

CorkSol Spray Finish: Sprayed the property with three coats of CorkSol insulated render coating in the customer’s chosen colour.

Benefits Achieved

The completed works improved the appearance and protection of the property while bringing the mixed brick and render surfaces together with one consistent finish.

Repaired Rear Elevations: The failed rear render was repaired before the final coating system was applied.

Stronger Prepared Surface: The fibre reinforced base coat helped create a stronger foundation for the insulated coating system.

Consistent Exterior Finish: The brick and rendered surfaces were brought together with one cleaner, more unified appearance.

Insulated CorkSol Coating: The spray cork system was selected to refresh the property while adding the benefits of an insulated, flexible and long-lasting exterior coating.

Lower Maintenance Protection: The finished system provides a low-maintenance coating designed to improve appearance and performance for years to come.

Why Use ProGuard Exteriors

For properties with failed render and mixed external surfaces, correct preparation is essential before applying any coating system.

Repair-Led Approach: ProGuard Exteriors restored the defective rendered sections before applying the new coating system.

Suitable Preparation: The whole house was primed to help ensure the CorkSol coating could bond correctly to both brick and render.

Mixed Substrate Experience: The finish was applied across a part brick, part rendered exterior to create a clean and consistent result.

Complete CorkSol Application: Three coats of CorkSol insulated render coating were sprayed to achieve the final protective finish.

Why It Matters

This Rushden project shows how a deteriorating part brick, part rendered property can be repaired, primed and upgraded with a consistent insulated spray cork coating. By addressing the failed rear render first, ProGuard Exteriors created the right foundation for a cleaner, brighter and more unified exterior.

Request a free site survey and no-obligation quote today to see how ProGuard Exteriors can support your next spray cork wall coating project.

ProGuard Exteriors provide CorkSol spray cork coatings, insulated render systems, render repairs and exterior wall coating solutions for homes across Northamptonshire and surrounding areas.

Whether you’re located in Rushden, Wellingborough, Kettering, Northampton, Irthlingborough, Higham Ferrers or nearby areas, our expert service makes us your go-to choice for spray cork wall coatings and exterior renovation solutions.

Contact our team to discuss CorkSol insulated render coating, failed render repairs and exterior wall coating upgrades throughout Northamptonshire, Buckinghamshire and surrounding areas.