Yes, we can accommodate this. Just bear in mind that we can’t offer you any warranty on any of the products that you supply. The warranty is really important in terms of peace of mind.
Let’s say you buy a concealed shower that fails. Although the place you bought the item from might give you a replacement, you’ll still have to pay for the replacement labour (which is usually more than the cost of the item). In the shower case, if we would have supplied it, then all the liability to replace would be on us.