Within a few minutes of completing an online enquiry I was impressed to receive a call from George at K Cahill. He answered all my questions about air source heat pump and pv solar panel system installations and agreed to arrange a heat loss survey for the former. This was efficiently carried out and an indication given of what radiators would need to be upgraded and where the heat pump could be sited. Detailed costed quotations for both systems were provided by George. Having decided to go ahead with both installations a date for them was arranged before Christmas. A further visit prior to the work was made by Jamie to check plumbing details. Darren undertook the air source heat pump instal with Kieran Joining him for the electrical aspects and to undertake the pv work. There was some delay to the conclusion of the work due to a faulty hot water cylinder but both Darren and Kieran were always very punctual, helpful and efficient throughout. The heat pump is working well for both heating and hot water. Having been used to a gravity fed tank we are now enjoying higher pressure water throughout the house including excellent showers. We had 8 solar panels fitted. Some of the scaffolding required affected our neighbour's car parking. George ensured that this was removed promptly after the work was completed. Minor adjustments have been carried out competently and with clear explanation of what is involved.