Great service and very knowledgeable about their products clean and courteous, just as they promise! If you have an old cylinder you could save around £ a year by topping up the insulation to mm alternatively if you are replacing your cylinder, you can save energy by making sure that the cylinder is no bigger than you need it. Do you have problem drains? or do you just want to check the condition of your drain? then our colour video unit is just what you need! Improving your home's energy efficiency.