For your specific model of Insignia, there are several timing kits and other related components available. This is due to the limited production of the Insignia B, which has resulted in some parts being rare. During a conversation with a technician acquaintance, I was informed that the producers of timing belt kits had recalled a significant number of them owing to a fault. The belts exhibited elongation when exposed to high temperatures, resulting in evident slippage and subsequent loss of synchronisation.
The cost for replacing the timing belt is set at £449. Additionally, they recommended replacing the drive belt after 35 units, with no extra charges for work. I cannot recall the specific term she used for the water pump, but it was priced in the hundreds.
After consulting with an independent garage, I have discovered that the water pump operates separately from the timing belt, as Drew previously said. The service has been scheduled for a total cost of £389, which includes the cost of labour.
Thank you for the guidance, gentlemen.