Priory Stone Ltd offers an external cleaning service:
Using the Doff steam cleaning system, Priory Stone Ltd can clean an array of external surfaces.
DOFF Steam Cleaning is recommended by the Royal Institute of British Architects, Historic England, The National Trust and English Heritage.
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- Stone Cleaning - The Doff system is perfect for cleaning natural Stone. Weathered stone can give the appearance of looking dull and dirty, this can be freshened up with a DOFF stone clean and for the best results you can follow up with a lime mortar re-pointing.
- Removing flexible paint - Painted masonry can be taken back to its original form with DOFF steam cleaning, removing all traces of old paint and completely transforming a building.
- Removing graffiti - Vandalised structures covered in graffiti can be cleaned up. The high pressure and the heat of the steam ensure the graffiti will loosen and dissolve.
- Brick Cleaning - Removing organic staining from brickwork. The DOFF system ensures that no excess water is absorbed by the bricks. Bricks are renowned for being porous. The Doff system ensures that the bricks dry out quickly with a minimal volume of water absorbed during the cleaning process.
- Render Cleaning - The DOFF system is ideal for cleaning different types of render due to the low pressure, this does not damage the surface and the hot water evaporates quickly, safely removing the dirt.
- Roof cleaning - Built up moss, lichen and natural algae's on your roof can be removed and the roof restored to its original colour using the DOFF steam cleaning system. With high temperatures the spores are also killed off reducing the re-growth and keeping your roof cleaner for longer.
- Stain Removal - The DOFF system can be used to remove carbon staining or cement staining from masonry work.
- Oil Stain Removal - The hot water helps to break down the oil particles better than cold water pressure washing.
The DOFF steam cleaning system is probably the safest non-intrusive way to clean without causing any damage to the surface. The DOFF system reaches temperatures of 150 ℃ and works effectively on masonry and stonework, while the temperature remains high during the cleaning process, the DOFF system has a gentle approach and keeps the water volume reasonably low. This means that the stone’s surface dries rapidly without there being any thermal shock, saturation or damage as a result and it’s friendly on the environment as there are no harsh chemicals used, often just steam.