AVOID THIS COMPANY - TERRIBLE SERVICE AND WORTHLESS GUARANTEE. We had a blockage and agreed on the phone to pay £260 + VAT for the CCTV & guarantee package - which was sold as being a guarantee to return to the site if the blockage re-occurred within a set period of time. The engineer arrived on site & was unable to get the cctv camera any distance into the pipe. He then used the electrical saniscrew to tackle the blockage. He passed over 18m of the saniscrew into the pipework and the blockage eventually appeared to clear. The engineer told us that the saniscrew would scrape and clean the sides of the pipework. He also said that the issue was that the pipework was the wrong size. The day after the visit, the sink began to drain slowly once more and was soon fully blocked. When we phoned Emergency Drainage they said they could revisit but we would have to pay the full charge of any work completed as the issue was the wrong size pipes. Both South West Water and a plumber have since confirmed that there is nothing at all wrong with our pipework. A local plumber managed to clear the blockage. It was obvious that all Emergency Drainage did was to puncture a small hole in the blockage that allowed the water to drain temporarily. Following phone calls and 2 unanswered emails requesting a refund we resorted to sending a letter to their head office address. An eventual email response stated that although the saniscrew is in fact covered by their guarantee they only guarantee drains that are not faulty. OUR DRAINS ARE NOT FAULTY, THERE IS NOTHING WRONG WITH OUR PIPES. During further phone calls, an employee refused to give their name due to 'Data Protection'. We were eventually offered a £50 refund just to 'go away'. Reading other damning reviews of this Company I can see claiming wrong size of faulty pipes is a scam they use to wriggle out of things. Shocking service all round. Avoid at all cost.