Within the UK your order will be sent using Royal Mail's Special Delivery service which is a next day guaranteed delivery and requires a signature upon receipt. Postage costs are approximately £10-£23 per delivery. Less urgent items can be sent using First Class Recorded delivery. If you'd like a more accurate idea of what your postage charges might be I am happy to give you an estimated cost.
For items going outside the UK I will investigate options from Royal Mail and UPS for you to choose from that will give you the most cost-effective and reliable service.