Euro Cylinders, or door barrel locks as they are sometimes known can be found on UPVC doors . If you are looking to replace or upgrade your door cylinder, or change your keys then replacing the cylinder is a very straight forward and cost effective option. We have a huge range of cylinders in stock, from 5 pin, 6 pin, 1 star and 3 star TS007 approved kite-marked security ones, to thumb turns and pairs. We can even key alike or master key larger quantities and sizes of cylinders. Just get in touch for more information on 01234 242724. If you are looking to upgrade a eurocylinder lock, please check out our helpful how-to video guide for expert advice on replacing an existing cylinder lock.