The William: sustainably developed office building

Mechanical installation, plumbing installation, control technology and heat/cold sources

Klimaatservice Holland took care of the entire mechanical installation, sanitary installation and heat/cold sources at The William new construction project in Amsterdam. The company also took care of the ventilation of the parking garage, firefighting and control technology.

The office building The William is located on the waterfront a stone's throw from the Amstel River. The striking building is constructed of steel, concrete, wood and glass and has a flexible floor area of some 13,500 m2. There will be a three-level parking garage for visitors and employees, and a commercial plinth has been realized on the first floor. Klimaatservice Holland was involved in the project at an early stage and was allowed to determine the technical frameworks together with the client and consultant. Project manager Pieter Meerkerk: "The building has been developed sustainably with the ambition of achieving BREEAM certification 'Very Good'. Even before the start of construction, heat/cold wells were drilled. The two towers each have their own heat/cold source and technical installation. These installations are interconnected, however, so that in the event of an emergency one installation can support the other. The use of two CHP systems with two vertical sources to spread the risk does make this project special."

This case involves two mono wells. "The advantage of a mono well is that it only needs to be drilled once. In use, there is no difference from a doublet system. As a backup, another heat pump is placed on the roof per tower and an electric boiler is provided for emergencies or peak situations. Thus, the users of the building are always assured of heat or cold."

'A good little train'

The William was completed in early July. Last summer, the CHP sources were developed, and from June 2023 the people of Klimaatservice went full steam ahead. The peak of work for Klimaatservice was mainly in the last quarter of 2023 and early this year. Meerkerk looks back on the project with satisfaction: "Together with all parties, we found a good train to make the completion go smoothly." 

At the construction site in the heart of Amsterdam, logistics presented the biggest challenge. But a good solution was found for that too. The material for the finishing work was delivered to a hub elsewhere in Amsterdam and brought to the construction site by a transport company after working hours. "They delivered for all parties on the construction site all the supplies for one floor at once. This greatly relieved the construction road and we were able to continue our work immediately the next day."