Reference letter received by SPB Contech sp. z o.o. from the Wspólnota Gdańska Foundation in connection with the comprehensive renovation of a tenement house in Gdańsk Oliwa carried out in 2023.
A letter of reference received by Contech s.c. from Przedsiębiorstwo Robót Inżynieryjnych "Pol-Aqua" S.A. with its seat in Piaseczno, in connection with the completion of work during the construction of the "Galeria Biała" Commerce, Recreation and Services Centre in Białystok in 2007-2008.