
Sound, visual & speaker installation for organizations & government
We design audio & visual for your space
Design and installation of sound, visual, PA, and conference-microphone systems by our engineering team — 40 years' experience, 100+ projects nationwide, registered e-GP vendor.

Audio & visual specialists
Whether you're starting from scratch or extending an existing system, our engineers guide you through every step.
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Sound & visual systems, one partner

AV Solution
Turnkey design and installation of audio, visual, and meeting-room systems, conference microphones, smart classrooms, nurse-call, and IP-network paging.
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Copper Material
Importer and distributor of specialty copper alloys — Beryllium Copper, Chrome Copper, ToughMet, and Moldmax — for the mold-making and electronics industries.
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Building Solution
3M solar window film to cut heat, and CosaTron air-quality management that reduces CO₂ and PM2.5 dust — plus building systems for safety and energy savings.
Learn moreGovernment sound system installation, through every procurement step
We have installed sound and visual systems for the Ministry of Interior, the Defence Council, the Revenue Department, several provincial halls, and the 1,000-seat auditorium at the Suphan Buri Government Center — so we know AV equipment specifications, the e-GP process, and the paperwork procurement teams need from budget request to final acceptance.
Registered e-GP vendor
We can bid through e-GP as soon as your agency posts a tender.
TOR and BOQ support
We help prepare technical specifications and a BOQ estimate for your budget request, matched to the actual room.
Past-work certificates
Past-work certificates ready to submit as bidder qualification wherever the TOR requires them.
Nationwide installation & service
40 years' experience, with provincial halls installed from Phayao to Narathiwat, and after-sales service in every province.
Selected government projects
- Ministry of Interior Meeting Room
- Defence Council Meeting Room
- Revenue Department Meeting Room
- Provincial Hall Meeting Rooms (Chai Nat, Chaiyaphum, Narathiwat, Phayao, Sukhothai, Ang Thong)
- Sukhothai Provincial Administrative Organization (PAO)
- 1,000-Seat Auditorium, Suphan Buri Government Center
- Ministry of Interior Centennial Memorial Hall
100+ projects nationwide
Brands we trust






Frequently asked questions
Can VAN INTERTRADE bid through the e-GP system?
Yes. VAN INTERTRADE is a registered government vendor on e-GP, so we can bid directly on sound, visual, and PA installation tenders from government agencies.
Can you help draft a TOR or estimate a BOQ for a budget request?
Yes. We prepare technical specifications and a BOQ that procurement teams can attach to a budget request, starting with a free consultation and a site survey so the figures match the actual room.
Our agency is outside Bangkok. Do you install there?
Yes. We install and provide after-sales service in every province; past work includes the provincial hall meeting rooms of Chai Nat, Chaiyaphum, Narathiwat, Phayao, Sukhothai, and Ang Thong, and the Sukhothai Provincial Administrative Organization.
How much does a PA system installation cost?
A small system (1–2 zones, 5–10 loudspeakers) starts at around 60,000 baht, a medium one (3–6 zones, 20–50 loudspeakers) at around 200,000 baht, and a large one (6+ zones, 50+ loudspeakers) at around 500,000 baht. The actual quotation follows a site survey and system design.
What is the process from site survey to handover?
A free consultation, a site survey, system design, installation, then user training for your staff before handover. After handover, after-sales care continues.
Talk to ourengineers today
Free consultation, on-site assessment, and a quote — right away.





