DHJ offers a diverse practice, yet we remain client focused and market driven. We prioritize working with excellent clients and developing long term relationships while providing deep expertise engineering through responsiveness, passion, creativity and stellar communication.

We offers the following basic and specialty services across a spectrum of markets:

> Industrial M&E Engineering
> Commercial M&E Engineering
> Domestic M&E Engineering
> Telecommunication works
> Distribution and Power Transformer
> Low and High Voltage System
> Fire Protection and Fire Detection Systems
> Generators
> CCTV Audio Visual
> Sound Reinforcement System
> Air Conditioning and Ventilation System
> Consulting and Project Management
> Specialized Projects

We hold a Class ‘V’ (5) Certificate registered under Ministry of Development, Brunei Darussalam. We are registered for the following categories:
– KA01 (General Civil Engineering Works)
– B01 (Building Works)
– M01 (Air-Conditioning and Ventilation System)
– M03 (Mechanical Engineering Works)
– E01 (Electrical Wiring Installation)
– E02 (Low Voltage Electrical Works)
– E03 (High Voltage Electrical Works)
– E05 (Cable Jointer Specialise – Jointer Works)
– KPME05 (Fire Alarm and Control System)
– S02 (Janitorial Services)
– P04 (Supply of Safety Equipments and Materials)
– P05 (Supply of Electrical Equipment)
– P07 (Supply of Pipe)