Both ranges are available for 2, 3 and 5-year terms on loan to values from 50% to 85%.
Colin Franklin, managing director of Coventry’s intermediary brand Godiva Mortgages, said: "In today's uncertain market many borrowers are looking for the security of a fixed rate but with flexibility to overpay or switch products later on without paying ERCs - our new Flexx Fixed range is perfect.
"As fixed rates with no ERCs are rare in today's market, we are confident that our new range which offers ultimate flexibility will be very popular.
“And for borrowers looking for low initial costs, our fixed rates with no arrangement fees are ideal.
“With both ranges available over 2, 3 and 5 years and a range of LTV's, there is something for everyone at the Coventry".
