Its five-year fixed rates for applications from private individuals, available up to 75% LTV, include a rate of 5.48% for standard properties, 5.58% for multi-unit properties and 5.68% for HMO properties.

Its five-year fixed rates for applications made by limited companies up to 75% LTV include a rate of 5.98% for standard properties, 6.08% for multi-unit properties and 6.18% for HMO properties.

David Whittaker (pictured), managing director of Mortgages for Business, said: “For investors who prefer the security of fixing for the longer term, these new rates are extremely keenly priced and only marginally more than the three year fixed and discounted products. We think investors will be impressed.”

Rob Lankey, managing director of commercial mortgages, at Aldermore, added: “The lower rates complete a round of price reductions across the Keystone Buy to Let Mortgages range.

“It demonstrates our on-going commitment to professional landlords, particularly those looking to finance more complex deals including multi-unit blocks, HMOs and limited company applications.”