It is now 18 days since the Part L and F changes came into force. Has anyone found any problems yet? Have any of you been caught out not fitting compliant products? Or is it all still far too unclear and confusing?

We’ve not really come across any problem scenarios as of yet. We’ve been selling A-rated windows for two years now, so that was never going to be a problem anyway. And our composite doors come with their own U-value certificate, and they are all 1.8 or better, so that is serving us well.

All comments welcome!