North Assistance Leszek Skierski

43.22.Z - Plumbing, heat and air-conditioning installation

25.62.Z - Mechanical working of metal elements

43.21.Z - Electrical installation

43.29.Z - Other construction installation

43.31.Z - Plastering

43.32.Z - Joinery installation

43.33.Z - Floor and wall covering

43.34.Z - Painting and glazing

43.39.Z - Other building completion and finishing

43.91.Z - Roofing activities

43.99.Z - Other specialised construction activities not elsewhere classified

71.20.B - Other technical testing and analysis

77.32.Z - Rental and leasing of construction machinery and equipment