Coy Welding Share: Welding Coy Welding Visit Website Ava, MO 65608 (509) 919-1070 Hours: Monday - Friday 8:00 am - 5:00 pmEmergency service 24/7. About About Mobile welding service. Pipe fencing, gates, trailer repairs, heavy equipment repair. Call The Office (417) 683-4594 Office Location 810 Collins Avenue Ava, MO 65608 Email Us director@avachamber.org