Click for project information Quinn Dressel Associates has undertaken several substantial and extensive structural renovation projects requiring complex engineering solutions. Major renovation projects include the introduction of the RBC/DS Trading Floors in the Royal Bank Plaza, 53 State Street renovation in Boston requiring retention of a 12 storey historical façade and the dramatic and award winning retention system allowed for the integration of Montreal's 127 year old Christ Church Cathedral into a major downtown redevelopment scheme. Christ Church Cathedral, Montreal Webb Zerafa Menkes Housden Partnership