Mike Oliver, manager of the HSBC Green Sale, said: For the many homeowners spring cleaning their finances this January, anyone looking to re-mortgage should not only seek out a competitive rate, but be careful to check behind the headline rate for hidden fees, charges and extended tie-ins.

Features of the new mortgage product include no higher lending, booking or exit fees, up to a 90% loan to value and a free transfer package available for borrowers switching from another lender. In addition, the mortgage offers a 5.17% fixed rate until 2012, which will then revert to the bank’s variable rate currently at 6.25%.

2007 will see HSBC going green with its annual sale where customers who take advantage of its deals and discounts will also help a range of charities, including the Climate Group, Botanic Gardens and Conservation International among others.