Our fully trained teams offer customised support for stone facade cleaning methods approved by Historic England, preserving the integrity of stone masonry and London brickwork. Our roster of sensitive cleaning services for building restoration include:

DOFF & Thermatec Cleaning: Using superheated water under controlled pressure, this steam-based method effectively removes stubborn stains, friable materials like paint, and other organic contaminants from the surface of stone and brickwork. It ensures a deep clean while maintaining the structure’s original fabric, essential for stone restoration projects.

Torc & Jos Cleaning: This light abrasive system for stone facade cleaning uses a combination of organic compounds, pressurised air, and water to gently remove carbon staining and sulphation crusts from stone and brickwork. Its swirling vortex action cleans delicate stone surfaces without damaging them, making it ideal for heritage conservation and stone carvings repair.

Poultices: This non-aqueous chemical cleaning method is custom-designed for specific contaminants. It draws out deep soiling from stone surfaces without oversaturating them with moisture. It is especially important for the conservation of historic monuments and reinstatement of listed stonework.

Soot Washing: In cases where a building’s facade is blackened by atmospheric pollution, this hand-applied stone facade cleaning technique matches new repairs or replacement materials to the original stained surfaces. By preserving the historic patina, we ensure the continuity of the building’s appearance, critical for building conservation.