Surgery Department Renovation

St. Mary's Medical Center


AEC, Inc. was the Civil, Structural, MEP and FP Engineers for the total renovation of St. Mary Medical Center’s 55,000 square foot Surgery Department at their Langhorne, Pennsylvania campus.


This four phase project consisted of a new service corridor, south facing building addition along with a large new mechanical room addition.


The first phase of this project was to construct a new hybrid and a new special OR suite. These two new facilities will relieve some patient loads on other existing OR’s while they get relocated and replaced during latter phases of the project.


The mechanical room addition housed two of three new large air handlers which were designed to provide conditioning requirements for this renovation project. AEC designed the third air handler to fit into an existing roof top penthouse and added a large supply and return shaft vertically through two existing floors of the hospital. All distribution ductwork in the OR ceiling were replaced with new systems fed from each new air handler as the phases were constructed. The central plant was increased to help serve the three new air handlers. Also replaced in phases was the electrical distribution, the IT requirements and all air, gas and vacuum requirements. A new oxygen system was also added and changed over in phases. The original oxygen tanks were relocated, re-piped and upsized as part of this renovation project.


Once completed all original air handlers will be removed from two major basement mechanical rooms. This will allow for the replacement of the central hot water generation system, two new steam distribution stations and open spaces for better servicing requirements for the facility management staff.

Services Provided
Fire Protection
Francis Cauffman
Healthcare Clients
Central Montgomery Medical Center
Phoenixville Hospital
St. Mary's Medical Center
Universal Health Services
Temple University
Thomas Jefferson University Hospital
University of Pennsylvania