My experience is a very poor one. I installed a new Optimax 25S last year. It worked perfectly and far more economically than the old Ideal élan it replaced. Then it died. Eventually I got through to Ferroli's technical people and they diagnosed a failed fan tachometer. It seems this is a known...
Check that the entire heating system is switched on - it works better then, check the timeswitch is correctly set if it isn't a radio operated timeswitch. Check there isn't a room 'stat set down to minimum somewhere.
Structure-borne noise is a major porblem to address on solid brick walls. Dealing with it is not easy. You could try fixing resilient bars to the wall, then two layers of BG Soundbloc plasterboard and then skim-coat. The new lining would have to be isolated from the front and rear walls to...
Tendering costs money. For a domestic heating installation a one in three chance of getting the contract is reasonable but one in eight is wholly unreasonable. It seems that OP used a scatter-gun approach instead of doing some real research to short-list, say, 3 contractors, any one of whom he'd...
Boundary disputes can be extremely stressful and ruinously expensive. I have done a number and clients can spend huge sums in surveyors' fees, then even larger sums in lawyers' fees and all over a few centimetres of ground. If you are using the Land Certificate as your "evidence" bear in mind it...