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Stone Cleaning

 

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  A data sheet on our stone cleaning services, a suitable summary for printing is available in pdf format, here

We specialise in using a low pressure sand jetting system that has been used nationwide for property restoration, including gaining approval for and subsequently working on many Listed Buildings.

The system, in our trained hands, causes minimal damage to an underlying surface and is flexible enough to tackle most property restoration cleaning tasks.

The low pressure sand jet can clean stone without injecting large quantities of water into the surface, and with minimal surface damage, at the same time, the 'wet' system also captures dirt and abrasive, preventing the health and safety risks associated with dry blasting.

A further advantage of the system we use is that it also uses far less abrasive than traditional techniques, making expensive abrasives cost effective, but more significantly reducing waste. Abrasive does not need to be recycled, preventing cross contamination between jobs, and apart from in specialist cases, is not a major part of the running costs.

Stone Cleaning

A Partially Cleaned West Yorkshire House (Sandstone) - cleaned by us in  December 2003 - Note the protection applied to the windows on the left - to protect the glass against the abrasive jet. Note also that the building has not been scaffolded - a significant saving compared to traditional dry blast systems that need scaffolding and sheeting to contain the blast media. Note that the 2005 'working at height regulations' have modified this, but a simple tower scaffold or access platform can be used for this type of work.

A North Yorkshire Chapel (Sandstone) - cleaned by us in March 2003
 
CLICK for more information The sand jet will only blow out loose pointing. In general re-pointing is unnecessary after using this process.

Paint can be just as effectively removed from stone, as from brick.

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horizontal rule

bulletThe low pressures mean that the system is gentle enough to clean delicate surfaces, yet powerful enough to strip multiple layers of paint in one pass.
bulletIt is not a chemical process so no noxious or harmful slurries or fumes are generated.
bulletAs it uses only minimal amounts of water and abrasive the system is regularly used indoors.
bulletConsiderably less mess than other systems, the low pressures mean that secondary mess (dust being blown out of floorboards etc) is also minimised.
bulletCleaning to the requirements of BS 8221-1&2 :2000 the British Standard Code of Practice for Cleaning and Surface repair of buildings.
bulletQuick efficient Graffiti Removal. No interference with other work in area.

 

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Copyright © 2004, 2007 Greenleaf Contractors Ltd
Acknowledgments to John Sinclair Willis for Original (Ashrose Group) Website Design -pcuk 
Last modified: Friday, 19 January 2007