Mortgage companies are warming up to interest-only loans as several lenders have re-entered the market in the last year.Data published by Moneyfacts, the financial analysts, showed the number of lenders offering interest-only loans increased to 33 in the last year. Ishaan Malhi, of online mortgage broker Trussle, said lenders were looking to satisfy the needs of borrowers. He said that the City watchdog, the Financial Conduct Authority, had recently loosened the rules on retirement interest-only mortgages, which would also boost the sector.“We’ve seen an increase in the demand for interest-only mortgages, due to lifestyle changes, equity releases and niche customer situations,” he said.