| Project Name | Closing Date | Time | Addenda |
| A-21-45 RTU Replacement for Holy Cross CA-Woodbridge (YCDSB) | 04/09/2021 | 12:00 NOON | 04 |
| A-21-49 Ventilation Upgrades 2021: Central Public School- Grimsby (DSBN) | 04/15/2021 | 2:00 PM | 01 |
| A-21-50 St. Matthew Catholic Elementary School – HVAC Unit Replacement- Oakville | 04/16/2021 | 2:00 PM | 00 |
| A-21-51 St. Paul Catholic Elementary School– HVAC Unit Replacement-Burlington | 04/16/2021 | 2:00 PM | 01 |
