We have just moved into a new house and were aware prior to purchase that the old boiler (Prima B system) was very close to retirement. I began researching on the Worcester Bosch website and used their approved-installer list to find local companies who could recommend and provide a quote for a new boiler system. The first company 'didn't work evenings or weekends', which I found a little strange, but thankfully the second recommended provider, Paragas, was not only flexible, but happy to visit us 2 days later on a Saturday morning to provide the quote. John spent just over 40 minutes with us, providing expert advice in 'laymans' terms, answering all questions and at all times being professional and polite. He provided us with a quote the same day, a full breakdown of works to be carried out and also helped us source finance with fully flexible terms. Perfect :). Our appointment was booked for the following week, just 8 days later, at our request. John arrived with two colleagues to undertake a huge project involving the removal and un-installation of an old, rusted, archaic 'regular' boiler system and install a new WB Greenstar 34 CDi combi with EasyControl. I cannot believe how hard they worked or how much they achieved in just one day! - the list is too long but to summarise for other householders - they secured the old tank in the loft, removed the huge old cylinder and associated pipes from the airing cupboard (now freeing up half a wardrobes-worth of space), removed the old thermostat and controls, plumbed in all new copper pipes beautifully (you couldn't tell they'd been in the house!), installed the new boiler, and wired-in and set up the new EasyControl. The system was thoroughly tested, flushed through, and John then took time to explain everything they had done, and how to use the new system. It was then I found out that he'd gone out of his way to buy new bricks to match the colour of the bricks of our house! Just astonishing levels of customer service. I really cannot recommend John and his team enough. The project should have taken two days, but their expertise, work-ethic and efficiency meant we had a new system up and running in one day. He also supplied his contact number for us to call at anytime should we need him in the future. Needless to say John will be invited back for annual services, and I won't hesitate to use Paragas again for any heating or plumbing-related work. I'd give 6 stars if I could. Thanks John.