Fast, friendly and efficient service from initial contact to complete finish of installing the new boiler. Installer took care of everything and even vacuumed before he left! Instant hot water and heat now after replacing our entire system due to age. Its absolutely great to have hot water again!! We opted for the Nest as you can control the heating via an app on your phone which we absolutely love! Simply Warmer offered a variety of payment options to suit our circumstances which was great for us and our budget! Love the idea and peace of mind of having a 10 year guarntee!! We would highly recommend them!