Different lenders may charge you different prices to lend you money, including the entry fees, exit fees, and administration fees. The bank can too charge an appraisal fee, since they would appoint a surveyor, who would verify the objects, whether they are worthy enough to cover the mortgage rate.
Be careful about the closing costs too. Try to minimize the closing costs as much as possible. If you are regular in repaying your interest, it will automatically drop down. Choose a lender who would not ask you for unnecessary junk costs. Worthy lenders would pay closing costs from their own revenues.
You can go for a mortgage lender online as well. Do not go for any name you come across on the net, but only the reliable ones. The online mortgage lenders are associated with larger local banks and would help you to finish the repayment program fast.
