Since it was created, Greisch office has retained very close links with construction companies capable of carrying out the work, and draws its strength from an in-depth understanding of construction methods. Often, the beauty and character of a structure are devised between the preliminary design study and the actual implementation, making full use of the potential of the design. No large structure can be designed without a hypothesis for its construction and placing into position. Invention and economy in these fields give a structure its final shape and it assumes its formal perfection. Greisch office frequently undertakes consulting engineering assignments, placing its competencies at the disposal of project originators. Based on a preliminary design, it undertakes the calculations and dimensions the work, following the ideas of the project originator as closely as possible, continuing the assignment through to the final plans and the negotiations with construction firms to obtain the best quality at the lowest price. This attitude enables Greisch office to have permanent contacts with architects and theoretical invention, while retaining in-depth knowledge of the potential means of execution, which will put the technical and formal ambitions into practice.