Can anyone tell me please, do I need to remove the calipers in order to change the front brake pads?

Yes.

This is mostly the case. Braking systems are generally designed to ensure that the pads are wholely contained within the caliper assembly.

Removing a caliper is very easy and allows you to check its condition.

Thanks Nick. I've done many brakes in my time but not in ages. Shouldn't be a problem.

Cheers!