37 Cleaning and upkeep services, namely, cleaning of buildings, residential buildings, and their parts, namely, walls, floors, concrete, balconies, ceilings and exterior surfaces; impregnation of residential buildings, other buildings and their parts, namely, damp-proofing and mold-proofing; cleaning of land, air and water vehicles, air conditioning equipment, heating equipment, furnaces, boilers, pipes, carpets and rugs, furniture, awnings, jalousies, venetian blinds, curtains, streets, paths, terraces, gratings, fences as well as providing the maintenance and upkeeping of land, air, and water vehicles, air conditioning equipment, heating equipment, furnaces, boilers, pipes, carpets and rugs, furniture, awnings, jalousies, venetian blinds, curtains, streets, paths, terraces, gratings, and fences; protection services for buildings, namely, coatings and impregnation of interior and/or exterior surfaces of residential buildings, other buildings and their parts, namely, structural protection of residential buildings, other buildings and their parts through the use of damp-proofing compositions and techniques; rental of cleaning machines and apparatus for the aforementioned services