Our clients and great friends decide to buy a family house in Zumikon, the golden coast of Zürich. It was decided to invest wisely and thus not only be able to enjoy a larger and more comfortable house, but also ensure a short-term appreciation of the property and achieve an excellent resale price. Under this premise, it was decided to invest punctually in strategic spaces, total renovation of the kitchen, bathrooms, transformation of the old garage into a living room, all the finishes, lamps, floors, appliances, were meticulously cured, constructively the surfaces of the windows were increased, Mounting a pressurized system of the highest technology, intelligent windows with an air chamber. In order to avoid any damage to the supporting structure of the house after enlarging the window openings, the loads had to be taken up with robust I-section steel profiles working as lintels. Over the new big window openings.