500DAY CO.,LTD.
WorkServicesContact083-292-1460ไทย
ไทย
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083-292-1460

Have a project in mind? Talk to the team.

500day.office@gmail.com

083-292-1460

© 2026 500DAY CO.,LTD. · Juristic person reg. no. 0105567082753
WorkServicesAbout
Bangkok
Delivered42projects
Combined value74.2M THB
Electrical Systems5projects
Building Renovation3projects

Construction / Engineering / Delivery

The finish is the testSo we stay to handover.

Full-service contracting — survey, design, construction and building systems through to handover, with one team accountable for the whole project.

See the workLet's talk
Bangkok, Thailand

The workis the answer.

Every project is planned as a system — from feasibility and sequencing down to the last detail before handover.

01 / 21

Texas Chicken interior fit-out, CentralWestGate

Interior Fit-out

Complete interior fit-out for the Texas Chicken branch at CentralWestGate, Bang Yai — kitchen counters, furniture, ceiling work and brand signage. Contract value about 4.26 million baht, delivered 2022.

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Sup Samai Niyom office building, Nakhon Pathom

Building Construction — 5 photos

Data Center rooms, One Bangkok

Data Center — 5 photos

Data Center and Server Room, AIT building

Data Center — 3 photos

Rooftop solar system, HomePro Rangsit

Solar — 5 photos

Mini Big C conversion of a heritage timber building, Chiang Khan

Building Renovation — 6 photos

View all projects21

From real jobsites

From the first day of structural work to handover day

Building RenovationOffice renovation, Chaeng Watthana Government ComplexInterior Fit-outTexas Chicken interior fit-out, CentralWestGateData CenterData Center rooms, One BangkokSolarRooftop solar system, HomePro RangsitBuilding ConstructionTarnus head office renovation, NgamwongwanInterior Fit-outMeeting room renovation, Teachers' Council SecretariatElectrical SystemsBuilding systems, Chulabhorn Research Centre, Chaeng WatthanaElectrical SystemsAMI smart meter installation, 300 points for MEASolarSolar system for a chicken farm, RayongResidentialHouse extension, Chaeng Watthana areaDesignLandscape design, Public Works and Town Planning Office, ChonburiBuilding RenovationDamac Digital building renovation, Srinakarin
Building RenovationOffice renovation, Chaeng Watthana Government ComplexInterior Fit-outTexas Chicken interior fit-out, CentralWestGateData CenterData Center rooms, One BangkokSolarRooftop solar system, HomePro RangsitBuilding ConstructionTarnus head office renovation, NgamwongwanInterior Fit-outMeeting room renovation, Teachers' Council SecretariatElectrical SystemsBuilding systems, Chulabhorn Research Centre, Chaeng WatthanaElectrical SystemsAMI smart meter installation, 300 points for MEASolarSolar system for a chicken farm, RayongResidentialHouse extension, Chaeng Watthana areaDesignLandscape design, Public Works and Town Planning Office, ChonburiBuilding RenovationDamac Digital building renovation, Srinakarin
Building RenovationDamac Digital building renovation, SrinakarinBuilding ConstructionSup Samai Niyom office building, Nakhon PathomData CenterData Center and Server Room, AIT buildingBuilding RenovationMini Big C conversion of a heritage timber building, Chiang KhanInterior Fit-outTexas Chicken interior fit-out, Siam Kit buildingElectrical SystemsBuilding systems, Thai Thai restaurant at Terminal 21 AsokElectrical SystemsTrue transmission tower upgrade, 50 sites in Nong Bua Lam PhuElectrical SystemsLighting system maintenance, 19 Lotus storesResidentialFront extension and rear kitchen, HOMU RangsitDesignPavilion design for an office extension, Kamphaeng SaenBuilding RenovationOffice renovation, Chaeng Watthana Government ComplexInterior Fit-outTexas Chicken interior fit-out, CentralWestGate
Building RenovationDamac Digital building renovation, SrinakarinBuilding ConstructionSup Samai Niyom office building, Nakhon PathomData CenterData Center and Server Room, AIT buildingBuilding RenovationMini Big C conversion of a heritage timber building, Chiang KhanInterior Fit-outTexas Chicken interior fit-out, Siam Kit buildingElectrical SystemsBuilding systems, Thai Thai restaurant at Terminal 21 AsokElectrical SystemsTrue transmission tower upgrade, 50 sites in Nong Bua Lam PhuElectrical SystemsLighting system maintenance, 19 Lotus storesResidentialFront extension and rear kitchen, HOMU RangsitDesignPavilion design for an office extension, Kamphaeng SaenBuilding RenovationOffice renovation, Chaeng Watthana Government ComplexInterior Fit-outTexas Chicken interior fit-out, CentralWestGate
360°

See the whole systemfinish every detail.

One team runs planning, coordination and quality control through to handover — so every part of the job moves in the same direction.

3D visualisation — every part assembled into one system

3D visualisation — Site plan laid outItem 01 / 04

01

Engineering design & planning

Design, planning and control systems for civil, architectural and in-building engineering works, including renovation of existing buildings and interior design.

02

General construction

Construction of every building type, renovation of existing buildings and interior fit-out — carried out by our own crews and engineers.

03

Construction consulting & supervision

Project consulting and supervision of schedules and engineering, architectural and building-system standards, on the owner's behalf.

04

Facility & construction management

Facility management and construction management — keeping buildings and their systems running smoothly after handover.

42

Projects delivered (2020–2025)

74.2million baht

Combined contract value in the project log

8

Lines of work, from interior fit-outs to building systems

9

Engineers, architects and technicians on staff

Think before we buildown it after handover.

500DAY is a full-service contractor covering survey, design, construction and project management — across structural engineering, architecture, building systems and interior fit-out — with standards, schedules and budgets you can audit at every step. Since 2020 we have delivered 42 projects worth over 74 million baht in combined value: nationwide retail brands, office buildings, factories, data center rooms, power and communication systems, and rooftop solar.

Registered juristic person no. 0105567082753 — General contracting for construction, decoration, design and extension of buildings, commercial and residential buildings, offices, roads, bridges, dams, tunnels and all other construction works, including civil works of every type.

Meet the teamthat runs your job.

All 9 engineers, architects and technicians on staff carry the job from the first drawing to handover on site.

งานระบบอาคาร ศูนย์วิจัยจุฬาภรณ์ แจ้งวัฒนะ
ติดตั้งมิเตอร์อัจฉริยะ AMI การไฟฟ้านครหลวง 300 จุด
ระบบโซลาร์เซลล์ฟาร์มไก่ จังหวัดระยอง

Management

  • 01Aniruth BenhasonGeneral Managerผู้จัดการทั่วไป

Design

  • 02Don MakeshineDesign Director · Senior Architectผู้อำนวยการฝ่ายออกแบบ · สถาปนิกอาวุโส
  • 03Wacharapol SupattantchatSite Architect · Senior Architectสถาปนิกประจำหน้างาน · สถาปนิกอาวุโส
  • 04Uthumporn PromsaenInvestment Advisor · Admin & Architectที่ปรึกษาการลงทุน · ธุรการและสถาปนิก

Site & Technical Team

  • 05Sorasak PaseeSite Engineerวิศวกรสนาม
  • 06Sarawut NorkaewMarketing Engineer · Civil Engineerวิศวกรการตลาด · วิศวกรโยธา
  • 07Unnop BenhasonSite Manager · Safety Officerผู้จัดการหน้างาน · เจ้าหน้าที่ความปลอดภัย
  • 08Warraporn SuksangEE Power System Technician · Electric Supervisorช่างเทคนิคระบบไฟฟ้ากำลัง · หัวหน้างานไฟฟ้า
  • 09Nuttawut OnsamaurgElectric Power System Manager · Electric Engineerผู้จัดการระบบไฟฟ้ากำลัง · วิศวกรไฟฟ้า

Ready when you are

Got a project in mind?Let's make it real.

Tell us the scope, timeline and goals. The team will map out options and next steps you can actually take.

Phone083-292-1460Email500day.office@gmail.com

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