Yes — most Christchurch hot water specialists offer weekend emergency service, though at a higher rate than weekday work. Weekend call-outs typically carry a $100–$200 premium on standard rates. Non-emergency work can usually be scheduled for the following Monday at normal rates.
For a planned cylinder replacement, booking during weekday business hours saves significantly. Weekends are best reserved for genuine emergencies.
Some Christchurch plumbers take planned jobs on Saturdays at weekend rates — but most prefer to fill weekends with emergencies only. If your cylinder is showing signs of failure but hasn't burst yet, call Monday morning and schedule for the same week. This saves you $100–$200+ on the same job.