Complaints about home finance products dropped 12% in 2011 year-on-year to 15,731 from 17,964.
Complaints about Barclays’ banking products dropped 31% down to 308,927 from 446,034.
However the number of complaints in general insurance and pure protection products more than doubled with a 102% increase from 97,190 to 196,684.
Barclays said the majority of complaints in the general insurance and pure protection category related to payment protection insurance.
Excluding these complaints overall volumes of complaints were down 29% in 2011 compared to 2010 from 471,424 to 336,362.
The total volume of complaints were still down 6% after taking PPI complaints into account from 568,614 to 533,047.
Antony Jenkins, chief executive of Barclays’ retail and business banking, said: “We made a commitment to put customers at the heart of our business and improve customer service.
“Tackling complaints is our top priority and today’s figures show real sustained progress on delivering on our commitments, with a reduction of over 30% in Banking complaints.
“We can and will do more to improve service and go further and faster to drive down complaints. We are aiming for further significant reductions in underlying complaints in the first half of 2012 as we continue on our journey to get it right first time, every time, for our customers.”