50 years of cutting-edge service Where it all started….. Alan Halcrow, Chairman of Clear Drains (UK) Ltd, saw an untapped opportunity: providing high-tech drainage services to the commercial market. Today Alan’s innovation and drive are still at the heart of the company as it plans to mark its 50th successful year of operation – and he celebrates his 80th birthday! The largest privately-owned drain cleaning company in the UK, Clear Drains is a 48-strong team delivering a range of services to commercial and residential customers across the south east. Operating from its offices in Marlow, the company has been at the cutting edge of drainage solutions ever since it began.