Specialist Conservation • UK & Global

Restoration & Renovation

Preserving Architectural Heritage

The United Kingdom is blessed with an abundance of beautiful stone buildings and monuments. Phidias Neo-Classical brings damaged stonework back to its prime by combining millennia-old traditional skills with state-of-the-art production equipment, lime mortar precision, and non-destructive cleaning.

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Historic England & CADW

Mandatory System Standards

JOS TORC & DOFF

Approved Cleaning Systems

Generational Lineage

Master Stonemasons

Bringing Damaged Stonework Back To Life

Throughout the 17th, 18th, and 19th Centuries, sovereign, aristocratic, and government commissions built the landmarks that characterise our national heritage. Although built to last, all stonework eventually requires preservation.

Whether stonework has suffered from weathering, neglect, or poor management, Phidias Neo-Classical has the generational lineage and tooling to execute comprehensive conservation schemes.

Our skills have been handed down through generations of the same family. We combine these foundational skills with modern stone production equipment and materials to ensure every completed restoration lasts longer than ever before.

Breathable Stone Conservation

Stone is a living, breathing material that suffers from age. Using aggressive abrasive methods can cause irreversible damage like crumbling, spalling, and core splitting.

Approved Standards: Phidias uses specialist JOS TORC and DOFF cleaning systems, which are mandatory for historic projects under the auspices of Historic England and CADW.

Specialist Stone Cleaning Systems

Precision low-pressure vortex and superheated steam technology designed for listed landmarks and monuments.

Swirling Low-Pressure Vortex

JOS TORC System

The JOS TORC system features a precision revolving nozzle that generates a gentle swirling vortex of water, air, and fine granulate powder. This swirling action cleans efficiently at ultra-low pressures without scouring delicate masonry faces.

  • Removes carbon sulphation & atmospheric pollution
  • Safely strips brittle paints, old oil paints & bitumen
  • Clears stubborn limescale and dense environmental staining
  • Interchangeable modular nozzles for detailed architectural mouldings
150°C Superheated Steam

DOFF System

The DOFF system superheats a standard water supply up to 150°C at the nozzle head. It cleans using high-temperature thermal vapour rather than abrasive impact, eradicating deep biological spores safely.

  • Eliminates moss, algae, lichens, and fungal spores completely
  • Rapid surface drying within minutes prevents long-term moisture entrapment
  • 100% chemical-free operation preserving the natural stone substrate
  • Lifts grease, wax, and surface contaminants without substrate etching

Restoration Work Undertaken

From major ecclesiastical restoration schemes to precision sculpture repairs.

Masonry & Repairs

  • Architectural Stone Replacement
  • In-Situ Stone Indenting & Repairs
  • Breathable Lime Mortar Re-pointing
  • Structural Portico & Arch Consolidation

Specialist Cleaning

  • JOS TORC Low-Pressure Vortex Cleaning
  • DOFF 150°C Superheated Steam Cleaning
  • Paint & Bitumen Removal
  • Biological Lichen & Algae Eradication

Historic & Ecclesiastical

  • Large-Scale Church Restoration
  • Historic & Listed Building Renovation
  • Public Civic Monument Conservation
  • Fine Marble Sculpture & Statuary Repairs

Contact Our Conservation Team

Consult directly with our master stonemasons regarding your condition survey, restoration scheme, or non-destructive stone cleaning requirements.

Send an Enquiry

  • Phone: 0117 929 4009
  • Workshop: 16-17 Bonville Road, Brislington, Bristol, BS4 5QF