Big Castel LLC is a professional company licensed under the Law on Urban Water Supply and Sewerage Services and the Law on Energy to operate and maintain residential utility infrastructure networks.

The company began its operations in 2011 under the name *Eco Town*, providing engineering maintenance and facility management for large residential, commercial, and office complexes developed by Jiguur Grand Group LLC. Since 2018, the operations were consolidated under Big Castel LLC, which now operates continuously for the 13th year with a team of over 40 permanent engineering and service staff.

The company provides engineering and facility management services to over 1,520 households and 60+ businesses in residential complexes such as Gegeenten Complex, Romana Residence, Luxury Zaisan Village, Zaisan Village, Khun Town, Khos Dal Town, and Park View Town.

Its Engineering Department delivers 24/7 uninterrupted maintenance services through skilled engineers, technicians, and repair specialists in the fields of water, heating, and electricity.

The Facility Management Department is responsible for cleanliness and upkeep of residential and office buildings, ensuring a comfortable environment through dedicated elevator operators, service staff, managers, and receptionists.