- "Those are enchanted windows. Magical Maintenance decide what weather we'll get every day. We had two months of hurricanes last time they were angling for a pay rise."
- — Arthur Weasley to Harry on the way to his trial for underage magic[src]
Magical Maintenance was a division of the Ministry of Magic. Members of this Department were the custodians of the Ministry. They were responsible for maintaining the upkeep of the Ministry, including deciding what weather to display through the Ministry's enchanted windows and repairing magic gone wrong within the premises of the Ministry, such as rain inside an office.
Magical Maintenance is presumably in charge of maintaining the lifts and ensuring that the Atrium fireplaces are supplied with Floo Powder, in addition to less magical forms of maintenance such as tidying up. The personnel working in the Magical Maintenance wore navy blue robes.