Flexible shifts hiring in Birmingham - any advice?

A cleaning company is taking applications for evening crews. There are 15 people counting on me, so I am trying to be careful. Shifts are four to six hours and the pay is weekly. How many hours do they guarantee?

I worked evenings at a hotel. The hours were steady and the team was friendly, but weekends were busy.

Ask whether the schedule is posted in advance and how they handle swaps. It matters a lot with kids.