We received a Government funded free boiler which was managed through NPower who were contracted to roll out this programme on behalf of the Government. They used Dyson to fit the boiler. We've recently had our floor up to renew it and discovered a water leak from when the boiler was fitted, where the condenser wasn't sealed properly. NPower were not interested as it had been over a year since the boiler was fitted. Had we not renewed the floor we would never have discovered it and the joist would have eventually rotted away. Very disappointed with this attitude, given we put our faith in the engineers doing the job properly in the first place! Have taken a film of the whole leak, so unable to show the extent of the damage.