Contact center
Send your generator, rental or maintenance request and our Ankara-based team will respond within 30 minutes. We manage sizing, commissioning and lifecycle care with a single accountable team.
30 min
Average first response
24/7
Technical support
15+
Years of experience
Tell us about your project and our consultants will call back with tailored recommendations.
Phone
Call center available on weekdays 09:00–18:00 (GMT+3).
Reach our field engineers 24/7 for urgent requests.
Send RFQs, specifications or maintenance requests.
Sales & project design
kVA sizing, site surveys and tailored configurations.
[email protected]Rental operations
Mobile fleet availability, delivery planning and fuel logistics.
[email protected]Service & maintenance
SLA agreements, on-site repairs and preventive schedules.
[email protected]Our OSTIM headquarters is open Monday to Friday 09:00–18:00. Saturday visits are by appointment.
Please call ahead to plan a site visit or arrange a briefing at our showroom.
Application type, estimated kVA, runtime expectations and timeline help our engineers prepare the right solution. A load list is even better.
Surveys within Ankara are free. For other locations we schedule based on availability and travel scope.
SLA clients receive on-site intervention within four hours. Standard requests are planned within twelve hours.
Call us during office hours or message us on WhatsApp outside business hours – both channels are monitored continuously.