Stabilisation, sealings and repairs of mining, engineering and hydro-engineering buildings and buildings sealed with polyurethane resins: - stabilisation of eroded foundations and masonry of buildings and houses, including insulation against humidity rising in the walls and against the underground pressurises water - stabilisation of impaired foundatuions and masonry of churches, fortresses, castles and historical centres of towns and other historical monuments - stabilisation and sealing of stone, concrete and brick masonry, bridges, tunnels, dams, hydro-engineering buildings, industrial and farming reservoirs, collectors, canals, etc. - stabilisation and sealing of insufficiently solid rocks, sands, gravel, etc. - stabilisation and sealing of rifts and cavities in buildings affected by mining gas exhalations, high-pressure dams and surrounding rock - sealing of dilatation rifts and cracks in water canals and conduits - floor polyurethane coatings, sport grounds and recreation surfaces, elastic construction details, anti-vibration insulating materials of rails and railroads - application of special construction technologies (micro-piles, anchors, injection bolts) - static securing and repairs of balconies and loggias, connection and anchoring of loose part of outside walls using the HeliFix system - water-proof surface insulation of buildings using special coating with sealing materials