Here at Crown Services we always aim to bring our clients the best possible advanced systems when it comes to building maintenance and refurbishment. Obtaining the DOFF Integra and training our operatives to use such an incredible, non-destructive cleaning system was paramount in our continued efforts to move ahead in our industry.

The DOFF system allows for effortless cleaning of grade listed buildings, with no damage to the stonework whatsoever. This system can be utilised using rope access techniques, there is no building too high for us to clean!

Please see below FAQ’s and should you have any additional questions, please get in touch.

What is DOFF?

The DOFF Integra is a market leading, expertly engineered system that utilises a normal water supply to remove some of the more resistant forms of unwanted matter from a range of surfaces.

The DOFF Integra is an advancement of the original DOFF Standard, providing greater ease of operation – eg improved manoeuvrability, quick release of modular components, digital displays and easy loading. The water supply is fed via a pump into a hot-box where it is rapidly heated to temperatures of up to 150℃. The heated water is then fed through high temperature heat resistant hoses to the special nozzle at a rate of between 3 to 5 litres per minute. Once cleaned, the surface dries within minutes which prevents any long-term damage as a result of trapped moisture.

What is the DOFF most effective in removing?

Paint coatings (most oil and plastic types) Certain types of graffiti Bird or vermin fouling Algae, moss, and fungi Wax coatings Chewing gum Bitumen, Oil, Grease and many others, all without causing any damage or disfiguring the substrate.

What surfaces should I use the DOFF on?

We recommend the DOFF for use on surfaces such as brick, stone, concrete, tiled (glazed and encaustic), wood, faience and terracotta. It is a useful sterilisation tool for kitchens, toilets, swimming pools, hospitals and factories.

Where can I use DOFF?

DOFF can be used in Building restoration, Industry, Food production, Hygiene control, Hospitals, Factories, Transport & vehicle depots, Workshops etc.

How does DOFF work?

A normal water supply is taken through the pump into the Hotbox, where a range of temperatures of up to 150º C can be achieved. The low volume of super heated water and steam (5 litres per minute) is then fed through heat resistant hoses to special nozzles where a genuine 150º C is delivered. The surface being cleaned does not suffer any damaging pressure, thermal shock or deep saturation and dries within minutes.

Call us today on 0161 371 9524 or email info@crown-services.co.uk for more information!