Homes, offices, hotels, hospitals and factories: all makes and models, one team, one contract.

TSE HYB 12850Certified service provider
Since 2009More than 17 years of experience
All brandsCassette, ceiling, floor, ducted
All of TurkeyAnkara-based service
Pick the symptom to see the likely cause and the fix. Or simply give us a call.
For homes, offices, hotels, hospitals, shopping malls, schools and factories.
We diagnose the fault on site, carry the most commonly replaced parts with us and aim to fix most problems on the first visit.
Prevent breakdowns, cut energy use and extend equipment life with planned preventive maintenance.
Coil washing, drain pan disinfection and filter replacement for clean, efficient air.
Details → 04New installation, relocation, 2-pipe / 4-pipe connection and commissioning.
Details → 05Motors, valves, thermostats, drain pans, filters and coils. Supply and fitting together.
Ask for a part →Each type differs in installation, maintenance access and common faults.
Recessed into the suspended ceiling; 4-way, 1–2-way and 360° models. For offices, shops and meeting rooms.
View → IN-CEILINGThe unit is hidden; air is distributed through ducts and diffusers. Common in hotels, residences and homes.
View → UNDER WINDOWCabinet or concealed; blows air towards the glass. For hospitals, schools and office façades.
View → WALLFor rooms without a suspended ceiling; similar to a split air conditioner indoor unit and practical to install.
View → EXPOSED CEILINGHung openly from the ceiling; for shops, workshops and offices without suspended ceilings.
View → SYSTEMNumber of pipes, motor type and electric heater; the differences for service and spare parts.
View →Photos from YOİ Mühendislik field work.





Pricing depends on the number of units, their type and location. Site survey and quotation are free of charge.
Tell us the problem, the number of units and your location by phone, WhatsApp or the form.
We inspect on site or from photos/videos and give you a clear, written price quotation.
Our team arrives with the parts and finishes the job cleanly and tidily.
We run and test the unit, then document the work carried out.

All the air that passes through a fan coil goes through the filter first. The right filter protects the coil and the fan from dust, reduces the build-up of odours and bacteria, and keeps the unit running efficiently. Washable antibacterial filters can be rinsed with water and reused, so you no longer need to keep buying new filters.
Tell us the make and model and we will source and fit the right part. We also ship parts anywhere in Turkey.
We provide on-site service in all 25 districts of Ankara. Outside Ankara, we work with hotels, hospitals, shopping malls, factories and public buildings through remote pre-diagnosis, scheduled team dispatch and bulk maintenance.

The general recommendation is at least twice a year, before the cooling and heating seasons. In heavily used spaces, filters should be checked more often.
The most common causes are a blocked drain line, a full or cracked condensate drain pan, a failed condensate pump and an incorrect slope. We find the cause on site and fix it.
Yes. We are based in Ankara and serve all of Turkey with remote pre-diagnosis, scheduled team dispatch, bulk maintenance and spare parts shipping.
It depends on the number of units, their type, the scope of work and the location. Fill in the form or call us; the site survey and quotation are free.
On-site service in Ankara, scheduled service across Turkey. Free site survey and quotation.