We've had issues with some radiators not getting hot since moving into our house a couple of years ago. I found AJ Marsden online, they came and recommended a chemical clean & power flush which they performed yesterday. The results are brilliant, not only are the problem radiators getting hot now, even the OK ones are hotter than they used to be, so I'm sure we will start saving money on our heating bills right away. The engineers who visited were very good, they took their shoes off as soon as they got in the house, they covered floorings with plastic and were very clean & tidy. I felt happy to just leave them to it and shut myself in another room to work without worrying if they were making any mess. They cleaned everything up before leaving and left no mess at all. This is how it should be but I know from experience that some tradespeople aren't this respectful of other's property! I will use them again for any plumbing jobs and will recommend them to anyone.