For this project, our team created large-scale external cornices, string courses, and architectural mouldings using custom-built silicone and fibreglass moulds. Each element was cast using Jesmonite AC730 — a material chosen for its fine texture, natural stone finish, and suitability for exterior environments.

Key project highlights:

• In-house mould creation: Using traditional techniques adapted from plaster casting, we developed detailed negative moulds for stone-effect pieces up to several metres in length.

• On-site hand installation: Every piece was fitted by our team, including hand-filling all natural stone joints for an authentic, seamless result.

• Naturalistic finish: The textured surface of AC730 captured every detail of our moulds, offering a true-to-life stone façade aesthetic that remains UV stable and weather-resistant.

Jesmonite AC730 is engineered for high-performance, long-life outdoor use. Compared to traditional stone or concrete, it offers several unique advantages:

• Lightweight stone alternative – Ideal for multi-storey façades, conservation areas, or retrofits where weight is a concern.

• Superior weather resistance – Unlike traditional GRC or cast stone, AC730 does not absorb moisture and resists cracking in freeze-thaw cycles.

• Architectural design flexibility – Can be cast into complex profiles including dentils, cornices, columns, or friezes, all with crisp definition.

• Eco-conscious material – Water-based, low VOC, and often specified in sustainable design practices.

This material is increasingly specified by architects, heritage consultants, and developers seeking high-quality external features with the look of traditional materials — but without the challenges of sourcing and installing quarried stone.

Our offering is uniquely end-to-end: we design, cast, finish, transport, and install each piece. This gives us total control over quality and consistency, while offering clients a truly bespoke solution tailored to the architectural context.

Unlike mass producers, we craft every element with the same care and precision as traditional heritage plasterwork — ensuring a flawless finish whether we’re creating external friezes or contemporary decorative façade elements.