We are now known as DEMIR VENTILATION PTY LTD and an Australian based company that specializes in providing creative mechanical ventilation solutions in the building industry. We are a family owned and operated company that has been serving the residents of Sydney for the last 10 years. Because of our experience, knowledge and certifications received by us help us to serve you better each time. Our highly skilled and trained team will install your commercial or industrial ventilation system to the highest standards.