Had an interesting conversation with bank where I was trying to fix my rate and wanted to use the fact I had a good BER rating to get a better rate. The BER only lasts 10 years and was out so I was advised I would need to get a new one to avail of the Eco-rate. Its not worth it for me but I was surprised to find that even a new mortgage applicant who starts off on a Eco rate also needs to get a new BER assessment when their one runs out. I would be very disappointed as a new mortgage application who chose by mortgage provider on this criteria and then had this requirement after 10 years. The bank told me all banks do this so just wanted to high-light in case others weren't aware.