All deliveries are sent with registered couriers who MUST obtain a signature at time of delivery - they are not permitted to leave goods without a signature of someone at that address.
If the goods are for home use you might want to have the goods sent care of your work address as we cannot predict the exact time that the couriers will deliver to your home (deliveries can occur anywhere between 9:00am-5:00pm weekdays, depending on your postcode).