
External Wall Insulation and Silicone Rendering Project in Southampton
How we transformed a semi-detached property
At Veramut Ltd, we believe that every home deserves to look beautiful and perform efficiently. When our team was approached by a homeowner in Southampton, Hampshire, they had one clear goal: to revitalise their property’s exterior while making it more energy-efficient. The house had a dated, weathered render that had lost its charm, and the client wanted a complete transformation that would also reduce heat loss.
This case study takes you through the whole process of this exciting project, from the challenges we faced to the solutions we provided and the stunning final result. It’s a perfect example of how high-quality external wall insulation and silicone rendering can bring a property back to life.
1. External Wall Insulation & Render in Southampton - Project Overview.
Location: Southampton, Hampshire
Colour: Soft, warm Pearl Grey, a sophisticated neutral tone that complements the property’s white window frames and dark front door perfectly.
Duration: 2 weeks from start to finish
Client Goals:
to improve the property’s thermal performance by installing external wall insulation;
to refresh and modernise the appearance of the house by covering the old, tired render with a sleek, durable finish.
2. The Challenge.
The property’s original render had seen better days. Years of exposure to the elements had left it looking worn, discoloured, and cracked in places. The house had a mix of brickwork and roughcast render that created an uneven, dated look. The homeowners were concerned about the amount of heat escaping through the external walls, which was driving up their energy bills and making the home less comfortable in the colder months.
They also felt the exterior looked drab and tired, which didn’t reflect the care and pride they had for their property. On top of that, they wanted a solution that would be low-maintenance, one that would stay looking bright and fresh for years without constant repainting or repairs.
We also had to consider the fact that the house is semi-detached, so our work needed to blend beautifully with the adjoining property while still giving this home a distinct, refreshed look.
3. The Solution.
After carefully assessing the property, we recommended installing a 50mm EPS (Expanded Polystyrene) external wall insulation system across the front elevation. This option offered the perfect balance of performance and value, significantly reducing heat loss while remaining lightweight and easy to install.
We guided the homeowner through the benefits of EPS insulation, explaining how it would improve thermal comfort, lower energy bills, and create a smooth, solid base for the final render. To finish the look, we suggested a high-quality silicone render, known for its durability, flexibility, and ability to resist dirt and algae.
Together with the client, we selected a beautiful Pearl Grey shade that would modernise the home while working harmoniously with the white window frames and dark front door. This combination not only addressed the practical goal of improving insulation but also delivered the elegant, refreshed appearance the homeowner wanted.
4. The Renovation Process.
From the very beginning, we wanted to make the experience smooth and stress-free for the homeowner. Once the plans were agreed upon, we prepared the property by thoroughly cleaning the existing render to remove dirt, algae, and any loose material. This step was essential to create a strong and stable surface, giving us the best possible foundation for the insulation system.
Where sections of the old render were too damaged to keep, we carefully removed them, ensuring the wall was even and ready for the next stage. With the surface prepared, our team began fitting the 50mm EPS insulation boards with precision, making sure every joint was aligned to create a perfectly flat and thermally efficient surface.
We applied an even coat of Pearl Grey silicone render, creating a fresh, modern appearance that instantly elevated the property’s kerb appeal. The smooth finish tied the whole façade together, blending seamlessly with the existing roofline and windows. Finally, we carried out a detailed inspection alongside the homeowner to ensure every detail was perfect. Once they were happy, we left the property clean, tidy, and ready to enjoy, a complete transformation achieved in just two weeks.

5. External Wall Insulation & Render in Southampton. Summary.
This project is an excellent example of how external wall insulation and silicone rendering can completely transform a home. Not just aesthetically but also in terms of comfort and energy performance.
At Veramut Ltd, we take pride in delivering high-quality workmanship with attention to detail at every stage. From careful preparation and insulation installation to the final sleek silicone finish, our team worked efficiently and professionally to bring our client’s vision to life.
If this transformation has inspired you, why not take a look at some of our other completed projects?
Discover how our team at Veramut Ltd revitalises homes across Dorset, Hampshire, and beyond with expert insulation and flawless rendering.
Get in touch with Veramut Ltd today to discuss your property insulation and render project.
Call us today on 07872107727 or request a free quote online.


