Since 1962 the vandervalk+degroot-group has become a market leader in the field of cleaning, inspection and renovation of various infrastructure projects. We live in a society that asks for new ways of working and new contract forms. Vandervalk+degroot is active in sewage management and vast knowledge of asset management. We are an international player. Spread over 14 depots in the Netherlands and Belgium and we have more than 400 employees. We work for Governments, businesses and individuals. Our key words are innovation, reliable, craftsmanship and safety. One of the unique points of our company is that our equipment is build and maintainted in-house by Grootvalk. For more than 55 years vandervalk+degroot is leader in emptying, cleaning, renovation and inspection of sewers, grease traps, oil/petrol separators, ground, churning, dock shelters, water basins, diver connections and cleaning of area surfacing on company premises. Based on the inspection, carried out in accordance with the required NEN 3398 and 3399, we even propose a maintenance plan (management plan). We always think alongside with our customers. Not only about the cleaning method or frequency, but also about reducing the costs and the use of sustainable resources. For more information please view our website: www.valkdegroot.com