GRP Architectural Mouldings
Precision-engineered, lightweight, and built to last
We design and manufacture bespoke GRP (Glass Reinforced Polymer) and FRP Composite (Fibre Reinforced Polymer) architectural mouldings for both modern developments and heritage restoration projects. Strong, durable, and virtually maintenance-free, both GRP and FRP are the smart alternative to traditional materials like stone, concrete, and ceramics — delivering long-term performance without compromising on appearance.
Why Architects and Contractors Choose GRP and FRP
GRP and FRP offers exceptional versatility and performance. It can be moulded into almost any shape, finished to replicate traditional materials, and installed quickly with minimal structural impact. From turrets, cornices, and chimneys to decorative façades and fascias, GRP mouldings are widely used across:
- Historic building restoration
- Commercial and retail developments
- Sports stadiums and public infrastructure
- Office complexes and mixed-use environments
We work with architects, designers, and contractors to deliver custom mouldings to precise specifications — offering support from concept and design through to manufacture and installation.
The Sui Generis Difference
All of our FRP and GRP mouldings are manufactured in-house in the UK using high-quality composite materials and advanced moulding techniques. We can match any colour, shape, or surface finish, and our experienced team is on hand to advise you on the most effective solution for your project.
Looking for something one-of-a-kind? We excel at creating bespoke architectural features that meet complex briefs — whether you’re restoring a Victorian roofline or adding bold modern elements to a new façade.
Built to Save You Time and Money
GRP architectural mouldings are designed for performance. With a high strength-to-weight ratio, they are easy to handle, install, and transport — significantly reducing build times and installation costs. Unlike traditional materials, GRP is:
- Resistant to weather, corrosion, and UV damage
- Impact-resistant and non-porous
- Lightweight, reducing structural load
- Virtually maintenance-free
- Cost-effective over its lifetime
Whether you’re repairing part of a listed property or building something completely new, FRP provides an elegant, efficient solution with a finish that blends beautifully into its environment — or stands out with colour and texture if preferred.
During the Whitechapel conversion, we were able to replace this turret and its failing gutters with FRP replicas to make sure this architectural feature would last for decades with virtually no maintenance – while getting the weathered copper look just right.
When budgets became tight during the Barnet Hospital build in London, the architects turned to Sui Generis to design and fabricate cost-effective FRP replicas of stone cornicing – bringing the project back within budget.
A London shopping centre needed non-structural architectural funnels and there was only one material that could provide the weather resistance and strength they required at the right price – FRP.
When a client wanted to replace the chimneys on four converted Victorian buildings with something lightweight and maintenance-free – while maintaining the same look and and feel – they turned to Sui Generis for help. We’re pleased to say our FRP chimneys now adorn the London skyline.
Your GRP and FRP Architectural Mouldings Guide
Fibre Reinforced Polymer (FRP) and Glass Reinforced Polymer (GRP) are rapidly becoming the materials of choice for architects, developers, and contractors looking for a high-performance alternative to stone, concrete, or ceramic.
Lightweight yet incredibly durable, both GRP and FRP are:
- Weather and corrosion resistant
- Impact resistant and UV stable
- Low maintenance and long lasting
- Cost-effective to manufacture and install
Its versatility means it can be moulded into virtually any architectural shape, from detailed period features like turrets and cornices to contemporary façades and structural elements. And because GRP can be colour-matched and textured to mimic traditional building materials, it blends seamlessly into restoration projects — while offering the efficiency and performance required in modern construction.
Whether you’re restoring, replicating, or creating something new, GRP offers the design freedom and resilience to bring your architectural vision to life — and ensure it lasts for decades to come.
5 Reasons to Choose Sui Generis GRP and FRP Architectural Mouldings
- ECONOMY – More affordable than traditional materials
- QUALITY – Built to last 20+ years with minimal maintenance
- DURABILITY – Weather, impact, and corrosion resistant
- FLEXIBILITY – Moulded to virtually any shape or size
- AESTHETICS – Realistic finishes that replicate stone, ceramic, and more
