City of London Dry Cleaners we have a tailor and seamstress onsite in our Canary Wharf location. Whether it’s a simple shortening of a hem or a pair of trousers, invisibly mending a tear, or a major adjustment to Designer item, the same dedication goes into our work. There’s attention to detail in any alteration, be it shortening or lengthening jackets, sleeves, trousers, skirts, dresses, adjusting waist size, or even just moving buttons.