Sainte-Anne's Hospital, which offers care and lodging for veterans, was built at the end of the 1970s. The building required an upgrade to its envelope and its electromechanical systems, and had to be adapted to the needs of an ageing clientele.
In 2007, Public Works and Government Services Canada hired Pomerleau to completely gut floors 4 through 14 of the hospital tower, as well as the third-floor of the basilaire of the building (20,500 m2). The work included the following:
- The almost complete replacement of the concrete panels of the building envelope with a curtain wall of glass and aluminium and windows that open and close;
- Upgrades to the electromechanical and fire protection systems;
- Asbestos abatement and replacing the existing wards with 330 private rooms with shared washrooms on 10 floors (such as in residential or long-term care centres); and
- Retrofitting the administrative offices in Basilaire 3, including supplying and installing an independent ventilation/air conditioning system.
The work had to be undertaken without affecting day-to-day hospital operations. The floors were retrofitted one at a time, based on a pre-established and approved plan. Patients were moved onto vacant floors and one floor was left between them and the workers. There were a limited number of floors that could be closed or inaccessible at any one time.
The Pomerleau team had to constantly ensure that hospital patients and employees were kept safe and secure, especially when concrete panels were being removed from the existing building envelope.