The core activity of Hoettel Couverture is to provide services in the field of roofing and construction, particularly in the following areas: Roofing (Couverture), Carpentry (Dachstuhl- und Dachkonstruktionen), Roof Maintenance and Repair (Entretien de la toiture), Façade Renovation and Sanitation (Ravalement de façade), Insulation (Dämmung und Wärmeisolierung von Dächern und Gebäuden), and Metalwork (Ferblanterie) for roofing and façade work. The company offers these services for new buildings, renovations, and repairs, emphasizing compliance with safety and environmental standards.