We had a replacement combi boiler installed and a new double radiator to replace an old single radiator. We selected Appliance World for a quote based on previous Which Trader reviews, the fact that their an accredited Worcester Bosch Installer, they have a really good website providing an indicative online price and we've bought white goods from their store and been pleased with their service. We got three quotes and were pleased with Appliance World's competitive price and the promise of a 10 Year Worcester Bosch Guarantee. The written quote following a simple site inspection was clear and all inclusive. They have even included a free first year service. The work was completed efficiently and with minimum disruption to my wife and baby who were at home during the work. The workmen were friendly and professional, providing a demonstration of the controls at the end of the work and testing to ensure things are working effectively. The work seems to have been done to a high standard, is neat and tidy and the workmen did a good job of cleaning up after themselves. The boiler is providing a much improved supply of hot water and the radiator looks great. We'll have to wait for autumn to fully test the central heating, but I'm confident the new boiler and radiator will be a great improvement in effectiveness and efficiency over the old one. I almost can't wait for the weather to get colder!