Service de nettoyage des conduits de ventilation

*AMENDMENT 002*This amendment extends the closing date to June 17, 2022 at 2:00 PM and is for the publication of the answers to questions received. *AMENDMENT 001*This amendment extends the closing date to June 15, 2022 at 2:00 PM and adds an attachment entitled 9F030-21-0453 - Mechanical specification - Amendment 1**The Canadian Space Agency requires the services of a contractor, qualified to practise and holding a Quebec permit, to provide the necessary services in order to inspect and clean Heating, Ventilation and Air Conditioning (HVAC) systems duct at the John H. Chapman Centre. *Optional site visit* On June 2, 2022 at 10:00 am at the Canadian Space Agency (CSA) (6767 route de l’Aéroport, Saint-Hubert Québec J3Y 8Y9).Bidders must communicate with the Contracting Authority no later than June 1st 2022 at 10:00 am to confirm attendance.