The lender is also offering 2-year fixes at 4.18% to 70% LTV, 4.68% to 80% LTV, all with a 2.50% completion fee.
With a £1999 completion fee the bank is also offering 2-year fixes at 4.68% to 70% LTV, 4.68% to 75% LTV and 5.18% to 80% LTV.
Charles Haresnape, managing director, mortgages and commercial lending, Aldermore said: “Buy-to-let is a thriving sector of the housing market. We have made these changes to keep pace with demand and ensure our products are attractive to our customers in this very competitive market.
“Aldermore has developed clear expertise in the buy to let market due to our commitment to support a wide range of customer needs, from the simple to complex.
“These changes further highlight our commitment to the buy to let market, which we believe will continue to flourish in the post-election and pension freedoms environment.”