At the forefront of technological and organizational innovation, Syrthea has developed an alternative approach to renovation projects and in particular thermal insulation by building exteriors. Our concept: • design and simulate 100% of the upstream worksite thanks to the digital model to leave nothing to chance, • prefabricate in the workshop a new insulating facade integrating joinery and cladding, • install this facade on site thanks to a system fast laying for a low nuisance construction site We develop this concept through two complementary businesses. In the south west of France we act as general contractor directly to the project owner in works contract or design realization. Everywhere in France and at