About Us
J-Rich Engineering
An engineering team with over 20 years of experience in building and factory systems. We bring care, technical expertise and a commitment to quality to every project.
Built on trust and the quality of our work
Founded in 2009 by Mr. Watchara, J-Rich Engineering Co., Ltd. provides electrical, mechanical and air conditioning services through an engineering and technical team with over 20 years of experience.
Our work spans offices, shopping malls, hotels, hospitals, factories and public-sector projects, with attention to quality, safety, workmanship and delivery schedules.
Why clients choose J-Rich
Quality at every stage
We select materials suited to the job, install them with care, and check system operation before handover.
Over 20 years of team experience
Our engineers and technicians bring experience in electrical, mechanical, air-conditioning and building safety systems for buildings and factories.
Support from consultation to handover
We provide advice, site surveys, design, installation and system testing, with after-installation support under the agreed project terms.
Clear planning and progress tracking
We coordinate the building systems, sequence the installation work and follow progress against the plan agreed with our clients.
Executive team
Mr. Watchara Joythongmoon
Managing Director (MD)
Mr. Watchara is an electrical engineer with over 20 years of experience in engineering and system installation. He began his career in the field, overseeing major projects in both the automotive industry and high-rise building developments. With a strong commitment to advancing engineering standards in Thailand, he founded J-Rich Engineering Co., Ltd., placing a high priority on quality, safety, and integrity in every project undertaken.
Mr. Supawut Joythongmoon
Deputy Managing Director
Mr. Supawut is a civil engineer with extensive experience in structural works, high-rise building construction, and M&E systems across both private and government projects. His in-depth understanding of on-site operations, combined with meticulous planning, enables him to manage projects efficiently, deliver on time, and fully meet client requirements.