RCB Plumbing and Gas Central Heating Specialists. Serving Surrey and South London, RCB Plumbing is a family-run business specialising in Plumbing and Gas Central Heating. All our engineers are fully experienced and insured Gas Safe Accredited, providing you with peace of mind when maintenance is required on your home or business. Based in Sutton, Surrey, we offer a comprehensive service that we believe is the best and second to none in the borough, in terms of both price and quality. Business hours: Open 24/7