The core activity of Balma Sarl is to provide services in the construction industry, particularly in masonry, concrete construction, civil engineering, and building renovation. The specific activities include: masonry, concrete construction, civil engineering, drilling work, building renovation, creation of openings, facade renovation, stonework, renovation of residential buildings, new building construction, extension and superstructure of buildings, construction of public buildings, construction of concrete structures, execution of earthworks, construction of sewer lines, adaptation of wastewater treatment plants, outdoor facilities, road construction, paving work, and fence and wall construction. The company also offers consulting services and project management.