The Union representing the 17 workers at the Castle of Learning Daycare Center say it plans to get an injunction against the closure.
Council voted last night to shut down the municipally run daycare at the end of December.
Carol Bruneau is vice-president of CUPE Local 191 and says the city is violating the terms of the collective bargaining agreement.
CUPE is the City's largest Union and Bruneau says the lay-off of staff at the Castle of Learning could result in a lot of bumping of employees from their jobs.