The phone number for Warren's Inn is (713) 247-9207. Open 365 days a year. Hours of operation: Monday through Friday 11:00 A.M. to 2:00 A.M. - Saturday 12:00 P..M. to 2:00 A.M. and Sunday 2:00 P.M. to 2:00 A.M. This is a full service bar with limited lunches. Lunch is served Monday through Friday from 11:00 A.M 2:00 P.M. except for holidays. On holidays we open at 2:00 P.M.