BUILDING societies still offer 40 per cent of all “best buy” mortgages, despite the problems that have hit the sector, according to new research.

Mutual lenders have been hit hard by the credit crunch. But the realpricecomparison.com website says they are particularly strong on fixed rate products, offering eight of the 10 best two-year fixed rate deals for people borrowing 75 per cent of their home’s value, and seven out of 10 deals for people borrowing 85 per cent.