Very poor service……3 Allocated engineers failed to contact me to book appointment for annual service. 4th one allocated offered one date only which I couldn’t do due to holiday but failed to get back to offer another. Only when the renewal came through and I complained did anything happen! When the engineer finally turned up 1 hour past the allotted 3 hour window, he pointed out to me that the previous service, carried out by another your repair agent, had not been done correctly and the build up of ash below the heat exchanger couldn’t have built up in the 16 months since that service on 7th May 2024. Avoid at all costs!