Excellent service by Simply Eco. Within a week of contacting them I had an assessment of my old boiler and within a few days an engineer was here to fit a Worcester Bosch, which he did very professionally and cleaned up as he went along. I am really pleased as I have also got a thermostat which I can set for the heating to come on and off as required. I have lung disease and feel the cold badly, but no more!! Thanks to all concerned.