CPV: 09332000 Solar installation, 44521110 Door locks, 45000000 Construction work, 45111100 Demolition work, 45200000 Works for complete or part construction and civil engineering work, 45210000 Building construction work, 45231000 Construction work for pipelines, communication and power lines, 45231300 Construction work for water and sewage pipelines, 45232141 Heating works, 45232142 Heat-transfer station construction work, 45232300 Construction and ancillary works for telephone and communication lines, 45260000 Roof works and other special trade construction works, 45261000 Erection and related works of roof frames and coverings, 45261100 Roof-framing work, 45261210 Roof-covering work, 45261215 Solar panel roof-covering work, 45261300 Flashing and guttering work, 45261900 Roof repair and maintenance work, 45262100 Scaffolding work, 45262110 Scaffolding dismantling work, 45262120 Scaffolding erection work, 45262300 Concrete work, 45262310 Reinforced-concrete work, 45262320 Screed works, 45262321 Floor-screed works, 45262330 Concrete repair work, 45262410 Structural steel erection work for buildings, 45262522 Masonry work, 45262660 Asbestos-removal work, 45262670 Metalworking, 45310000 Electrical installation work, 45311200 Electrical fitting work, 45312000 Alarm system and antenna installation work, 45312310 Lightning-protection works, 45313100 Lift installation work, 45317000 Other electrical installation work, 45324000 Plasterboard works, 45331200 Ventilation and air-conditioning installation work, 45331210 Ventilation installation work, 45332000 Plumbing and drain-laying work, 45410000 Plastering work, 45420000 Joinery and carpentry installation work, 45421000 Joinery work, 45421100 Installation of doors and windows and related components, 45421110 Installation of door and window frames, 45421130 Installation of doors and windows, 45421131 Installation of doors, 45421140 Installation of metal joinery except doors and windows, 45421141 Installation of partitioning, 45432110 Floor-laying work, 45421150 Non-metal joinery installation work, 45422000 Carpentry installation work, 45430000 Floor and wall covering work, 45431000 Tiling work, 45431100 Floor-tiling work, 45431200 Wall-tiling work, 45432100 Floor laying and covering work, 45432113 Parquet flooring, 45432130 Floor-covering work, 45432200 Wall-covering and wall-papering work, 45442100 Painting work, 45443000 Facade work, 45452000 Exterior cleaning work for buildings, 45452100 Blast cleaning work for building exteriors, 90911200 Building-cleaning services