Northern Rock has reduced rates by up to 0.50% across its Everyday mortgage range.
Two-year residential fixed rates now start at 3.10% at 70% LTV, for both purchase and remortgage customers with a £995 product fee.
The same deal without a product fee is available from 3.55% at 70% LTV.
The state-owned bank has also cut rates on its 80% LTV and 85% LTV products by up to 0.40%.
A two-year Everyday fixed rate at 80% LTV for purchase customers is now available at 4.08% with a £995 product fee.
Everyday mortgages allow overpayments of up to 10% each year, as well as the option to apply for payment holidays.
Northern Rock offers a free basic valuation (excluding non-standard work) and free standard legal costs on residential remortgage cases.