The reductions will now see first direct offer a 3.99% 3-year fixed rate and a 4.19% 5-year fixed rate with fees of £999 and £1,499 respectively.
The lender will also offer fee free options at 4.29% on its 3-year fixed and 4.49% on its 5-year fixed.
Andy Forbes, head of retail products at first direct, said: "In response to increased demand for high LTV mortgages we have reduced our 90% LTV rates by up to 30 basis points to ensure our customers have access to our most competitive rates.
"Also, to drive down the up-front cost of purchasing a property, first direct currently offers fee free options on all its 90% LTV mortgages, helping buyers avoid arrangement, booking and valuation fees."
first direct has also cut the rates for borrowers with a bigger deposit.
The lender will now be offering a 2.39% 3-year fixed rate for up to 65% LTV and reducing the rates on its 65% and 75% LTVs 2 and 3-year fixed rate repayment mortgages by 10bps.
