Best Tools For The Job:1). A Cranked Spanner:A cranked spanner will release the back nut that attaches the taps to the basin. If the nut is difficult to undo, put a screwdriver through the end of the spanner for extra torque. A Bounds Green Plumber uses different plumbing spanners.2). A Basin Wrench:The Basin Wrench will release the connector nuts that secure the taps to the supply pipework.A). Reach up underneath and unscrew the holding nuts on the old taps. You will probably need a basin wrench to free the tap connector nuts securing the taps onto the pipes, and the cranked spanner for releasing the back nuts holding the taps in the basin.B). Take out the old taps. If they dont move even after you have removed the holding nuts, they could be held in place by the old putty. Tap them lightly from below with a wooden mallet. Clean the ceramic surround before fitting the new taps. C). Fit the new taps from underneath with the washers and mounting nuts that come with the new taps. The hot tap sits on the left, and the cold tap sits on the right. Clean the pipes using wire wool and check there is no debris inside the new taps before making the attachments. Now reconnect the existing pipes or swap for 15mm flexible tap connectors. Bounds Green Plumbers fit taps. Finally: Restore the water supply and check the taps are working without any leaks.Point of Interest:The majority of new taps are fitted with a handy eco click mechanism to help you and your family to develop some good water wise habits. When the tap is initially turned on, it flows at a rate that is right for rinsing a toothbrush or facecloth. If a higher flow rate is needed, to fill a basin for example, you just turn past the click.