Rendering Services in Bristol and the South West

Breathable, flexible, and weatherproof finishes, installed by experts using BBA-certified systems.

SERVICES

Rendering

What Is Rendering and Why It Matter

Rendering is a protective and decorative layer applied to exterior walls. It shields the structure from weather damage, improves insulation, and gives a clean, modern finish.
At LenexBris, we use high-performance silicone-silicate render, which is breathable, flexible, and fully water-repellent. Once applied, it forms a durable coating that resists rain, dirt, algae, and cracking.

We typically use a 1.5mm thin-coat system, which means the render goes on in a single, even layer. It’s lightweight, adapts to movement in the building, and looks sharp for years without repainting.

Our materials come pre-coloured, so there’s no need for extra masonry paint. You choose the colour and texture, we install it fast, cleanly, and to the highest standard.
This isn’t old-school render that cracks and peels.

It’s a long-term upgrade that protects your property and boosts curb appeal instantly.

It’s a long-term upgrade that protects your property and boosts curb appeal instantly.

Modern thin-coat silicone rendering isn’t just about looks; it’s built for performance. Clients choose it because it lasts longer, stays cleaner, and performs better than traditional sand and cement render. Here’s why:

Self-cleaning finish – water runs off the surface, taking dirt and debris with it
Resistant to algae and fungi – helps keep your walls fresh and low-maintenance
High flexibility – adapts to building movement without cracking
Weatherproof and breathable – protects against rain while letting walls breathe
BBA-certified materials – guaranteed quality, trusted across the UK
Wide range of colours and textures – no need for additional paint
Fast, clean installation – minimal disruption, maximum curb appeal

Why We Use Thin Coat Render Systems

Traditional render may look solid at first, but over time, it’s heavy, brittle, and prone to cracking. It struggles with movement, moisture, and the British climate. Thin coat silicone-silicate render solves those problems. It’s flexible, lightweight, and designed to move with your building instead of against it. At just 1.5mm thick, it applies cleanly and evenly without overloading the structure. That flexibility protects against hairline cracks and surface stress over the long term. It’s also breathable, which means trapped moisture can escape, helping prevent damp issues and protecting internal walls. These systems are fully pre-coloured, so what you see is what you get. No paint. No peeling. Just a uniform, long-lasting finish. Because the material is hydrophobic, rain runs right off the surface, taking dirt and debris with it. That makes it look newer for longer, even in coastal or high-traffic areas. It dries faster, bonds better, and performs stronger than old-school cement or monocouche systems.
If you’re looking for a modern rendering solution that protects, breathes, and stays sharp for years, this is it. It’s one of the most advanced exterior wall rendering systems available in the UK, built for long-term durability and visual impact.
Simply put, it lasts longer, looks better, and costs less to maintain.

Where Silicone Rendering Works Best

Silicone thin coat render is versatile. It’s perfect for new builds, extensions, and full refurbishments, but also ideal for commercial buildings that need a clean, professional finish. We use it on homes, offices, apartment blocks, shops, clinics, and more. Because it’s so lightweight and flexible, it’s especially useful for older properties and surfaces that don’t play well with heavy cement-based render. It works just as well on blockwork, brick, or insulation boards, making it a top choice for both traditional and modern construction. Many clients use it to upgrade tired exteriors, add value before sale, or improve long-term weather protection. If you want a finish that looks good, lasts, and needs almost zero upkeep, this system fits almost any project.

Why Choose LenexBris for Your Rendering Project

We don’t just apply render; we understand the structure underneath. As a full-service construction firm, we know what it takes to prep and protect external walls properly. That means no rushed jobs, no missed details, and no call-backs. Our team is fully trained in thin coat systems, and we work only with trusted, BBA-certified products, nothing generic, and no cheap shortcuts.

Whether you’re updating a tired façade, finishing a new extension, or planning a full external renovation, we tailor the work to your property’s specific needs. We work cleanly, quickly, and always to spec, keeping you informed at every step.
We operate across Bristol and the South West, with experience in both residential and commercial settings. From first quote to final topcoat, we keep it simple: expert advice, sharp execution, and long-lasting results.

We’re known for precision and finish, not just speed. As experienced silicone render installers in Bristol, we deliver external wall protection that actually lasts. Clients come to us when they want rendering that adds value, not just covers bricks.
If you want rendering done properly, by builders who treat your home like a build, not a surface, we’re the team to call.

How Our Rendering Process Works

We keep things simple, clear, and clean, from the first quote to the final finish. It starts with a site visit, where we assess the condition of your external walls and help you choose the right render type, colour, and texture. Once agreed, we prep the surface thoroughly, which means fixing cracks, applying mesh, and ensuring a stable base for maximum bond and durability.
We work in well-organised stages: first the base coat, then the mesh, then the primer, and finally the silicone render finish. Everything is done by trained professionals using BBA-certified products, no corner-cutting and no subcontractors.

Throughout the project, we stay in touch. You’ll know what’s happening, when it’s happening, and what to expect next. Most jobs are completed within days, not weeks, with minimal disruption and zero mess left behind.
The result? A smooth, breathable, weatherproof finish that looks sharp from day one and stays that way for years.

Rendering: Frequently Asked Questions

How long does silicone render last?

Silicone render is designed to last between 20 and 30 years when installed correctly. It’s far more flexible and weather-resistant than traditional cement-based systems, which helps prevent cracking and surface deterioration. Because it’s breathable, it also allows moisture to escape, reducing the risk of damp or internal damage over time. With minimal maintenance and no need for repainting, silicone render is one of the most durable and low-maintenance solutions available for house rendering in the UK.

Is silicone render better than monocouche?

Yes, in most cases, silicone render outperforms monocouche render in both flexibility and long-term durability. Unlike monocouche, which can become brittle and crack over time, silicone render moves with the building and resists hairline fractures. It’s also hydrophobic, meaning it repels water and self-cleans during rainfall. For clients in damp or changeable climates like the UK, silicone render is often the better choice, especially when long-term performance and lower maintenance are priorities.

Does silicone render cracks over time?

Silicone render is specifically designed to reduce the risk of cracking. Its flexible structure allows it to move with your property, making it far more resistant to surface fractures than older cement-based systems. That said, like any external material, it still needs proper installation on a well-prepared substrate to perform at its best. When applied correctly, it’s one of the most stable rendering systems available, even in areas with high moisture, movement, or temperature variation.

Can I apply silicone render to old or damaged walls?

Yes, silicone render can be applied to older or previously damaged walls, as long as the substrate is properly prepared. In many cases, repairs or stabilisation layers are added first to ensure a sound base. The lightweight nature of the thin coat render makes it ideal for retrofitting, especially on period properties or surfaces where traditional render would be too heavy. It’s a popular choice for external refurbishments, giving tired walls a clean, modern finish that lasts.

Is house rendering worth it in the UK climate?

Absolutely. The UK’s damp and changeable weather makes house rendering one of the best investments for protecting your exterior walls. Silicone render in particular is ideal for this climate, it’s breathable, water-repellent, and resistant to algae, which helps prevent staining and degradation over time. It also improves insulation performance when combined with EWI boards. For many homeowners, rendering not only protects the property but also adds value and curb appeal instantly.

How much does silicone rendering cost in Bristol?

The cost of silicone rendering in Bristol depends on several factors, including the size of the property, the condition of existing walls, and the type of finish selected. On average, prices range from £60 to £90 per square metre for labour and materials combined. While it may cost more upfront than basic cement render, silicone systems typically require less maintenance and last much longer, making them more cost-effective over time. For an exact quote, it’s best to arrange a site visit.

What types of rendering are available in the UK?

In the UK, the most common types of external wall render are cement render, monocouche render, and silicone thin coat render. Cement render is the oldest and cheapest option but tends to crack over time and requires regular maintenance. Monocouche is a one-coat system that offers colour-through performance, but it’s less flexible and prone to microcracks on older or moving structures. Silicone thin coat render is currently the most advanced system, it’s breathable, hydrophobic, and highly flexible. It self-cleans in the rain, adapts to structural movement, and maintains a sharp finish for decades. For most modern homes and refurbishments, silicone render is now considered the best long-term solution in terms of both appearance and durability.

Does external rendering improve energy efficiency?

Yes, external rendering can significantly improve a building’s thermal performance, especially when combined with insulation boards (EWI). While standard render provides basic weatherproofing, silicone thin coat systems help regulate moisture and reduce heat loss through external walls. When used with insulation, rendering becomes part of a full thermal envelope that keeps homes warmer in winter and cooler in summer. This can reduce your energy bills and make the property more comfortable year-round. It also improves airtightness without sacrificing breathability, making it a smart upgrade for energy-conscious homeowners across the UK.

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Tell us what you need. We’ll quote it properly, price it fairly, and explain what’s possible. It’s free, and there’s zero pressure.

Call: 0117 965 4777 | Email: info@lenexbris.com

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