This review, to my shame, is 15 months late. On 17 January 2017 my mother's boiler 'died' during some bitter winter weather. At this point, John Lucas had looked after Mum's heating system for a few years and he came up almost immediately to ascertain the problem. It became evident a brand new boiler was required which would take John, together with a colleague, a whole day, to install and he was already fully booked for the following 10 days. Recognising Mum's vulnerability and need for warmth, John returned within the hour with all his available hot air blowers so we could at least keep Mum warm in the room she occupied 24/7. Within a short period John had provided me with advice and quotes for the boiler and works required and we agreed a date, 10 days hence, for the removal of the 'old wreck', installation of the new boiler and a full system flush. The day agreed upon was a Saturday, a day on which John would usually only arrange to work up to midday. In order to fit Mum's boiler John and a colleague worked an extended Saturday, not finishing until well after 5pm: the old boiler was not the easiest to remove and some grunts and groans were heard during the process. Nevertheless, by the end of the day, all the old installation had been removed and taken away, the new boiler successfully installed and commissioned with the house gradually heating up to a rosy glow once again - thank goodness. John and his colleague did a tremendous job,they were unfailingly cheerful throughout the job and I shall be forever in his debt that he understood and catered so well to Mum's need for warmth. I can unhesitatingly recommend John Lucas to be your heating engineer; he'd thoroughly professional, always cheerful and gets the job done.