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Quotation Estimate Mechanical Engineer in Thailand Bangkok –Free Word Template Download with AI

Professional Mechanical Engineer Services — Thailand Bangkok

Service Provider

Chulalongkorn Engineering Solutions Co., Ltd.
128 Sukhumvit Road, Klongtoey Nua
Watthana, Bangkok 10110, Thailand
Tel: +66 2 255 8890
Email: [email protected]
VAT No: 0105558901234

Client / Recipient

Thailand Bangkok Industrial Development Group
45 Rama IX Road, Huai Khwang
Bangkok 10310, Thailand
Contact: Mr. Somchai Prasert
Tel: +66 89 123 4567
Email: [email protected]

Quotation Estimate No.: QTE-2025-BKK-0472
Date of Issue: 15 June 2025
Valid Until: 15 July 2025 (30 calendar days)
Project Location: Thailand Bangkok — Eastern Economic Corridor, Chonburi Extension
Prepared By: Eng. Nattapong Siriwat, P.Eng. (Mechanical Engineer, License No. 12345)

This Quotation Estimate is issued by Chulalongkorn Engineering Solutions Co., Ltd. to provide comprehensive Mechanical Engineer consulting, design, and oversight services for the Thailand Bangkok industrial facility expansion project. The scope encompasses all mechanical systems including HVAC design, piping network engineering, structural support for rotating equipment, and thermal system optimization. All work will be conducted in accordance with the Thai Building Control Act B.E. 2522, the Thai Industrial Standards Institute (TISI) regulations, and applicable international engineering codes as adopted for use in Thailand Bangkok.

The Mechanical Engineer team assigned to this project will operate primarily from our Bangkok headquarters and will conduct on-site inspections at the client's Thailand Bangkok premises no fewer than three times per week during the active design and construction phases. All deliverables will be submitted in both Thai and English to satisfy local regulatory requirements and international stakeholder reporting needs.

Item No. Description of Mechanical Engineer Service Unit Qty Unit Price (THB) Amount (THB)
01 Initial site survey and feasibility assessment by senior Mechanical Engineer at Thailand Bangkok project site Lump Sum 1 85,000 85,000
02 Conceptual design and system layout for HVAC and mechanical ventilation (Mechanical Engineer deliverable, 3 revision cycles) Lump Sum 1 320,000 320,000
03 Detailed piping and process equipment engineering drawings (Mechanical Engineer, ISO 10628 compliant) Sheet 45 4,500 202,500
04 Thermal and fluid dynamics simulation (CFD) for Thailand Bangkok climate conditions Lump Sum 1 175,000 175,000
05 Construction-phase Mechanical Engineer supervision and quality assurance (6 months) Month 6 120,000 720,000
06 Commissioning, performance testing, and final handover documentation Lump Sum 1 95,000 95,000
07 Regulatory submission and permit coordination with Bangkok Metropolitan Administration (BMA) Lump Sum 1 48,000 48,000
08 Travel, accommodation, and local transport within Thailand Bangkok metropolitan area Month 8 18,000 144,000
Subtotal (THB) 1,789,500
VAT 7% (Thailand Revenue Code) 125,265
TOTAL AMOUNT DUE (THB) 1,914,765

Payment for this Quotation Estimate shall be made in the following installments: 30% upon contract execution, 40% upon completion of detailed design and approval of all Mechanical Engineer deliverables, and 30% upon successful commissioning and final handover. All payments are to be made in Thai Baht (THB) via bank transfer to the account specified in the service agreement. Late payments shall incur interest at the rate of 1.5% per month as stipulated under Thai commercial law.

The total estimated duration for all Mechanical Engineer services outlined in this Quotation Estimate is approximately eight (8) calendar months from the date of contract signing. The schedule is structured to align with the dry season in Thailand Bangkok (November through April) for all outdoor structural and piping works, minimizing weather-related delays. A detailed Gantt chart will be provided as an appendix to the executed contract.

  • This Quotation Estimate is valid for thirty (30) days from the date of issue. After the expiration date, pricing may be subject to revision due to material cost fluctuations in the Thailand Bangkok market.
  • All Mechanical Engineer services shall be performed by licensed professionals registered with the Council of Engineers, Thailand. The lead Mechanical Engineer holds P.Eng. certification and a minimum of fifteen years of experience in industrial mechanical systems.
  • The client agrees to provide timely access to the Thailand Bangkok project site, all existing as-built drawings, and any third-party data required for the Mechanical Engineer to perform the scope of work.
  • Any changes to the scope of work beyond the parameters described in this Quotation Estimate will be subject to a formal change order and additional cost assessment.
  • Confidentiality: All proprietary information exchanged during the engagement shall be treated as confidential in accordance with the Thai Civil and Commercial Code, Book V.
  • Disputes arising from this Quotation Estimate or the resulting contract shall be resolved through arbitration under the rules of the Thai Arbitration Institute, with the seat of arbitration in Bangkok, Thailand.
  • This Quotation Estimate does not constitute a binding contract until both parties have executed the formal Service Agreement incorporating these terms.
Important Note: This Quotation Estimate assumes standard operating conditions for the Thailand Bangkok metropolitan area (ambient temperature 28–35°C, humidity 65–85%). Should the project site require specialized environmental engineering beyond these parameters, a supplementary Quotation Estimate will be issued at no additional cost to the client.

By signing below, the client acknowledges receipt of this Quotation Estimate for Mechanical Engineer services in Thailand Bangkok and agrees to the terms, conditions, and pricing outlined herein. This acceptance does not obligate either party until a formal Service Agreement is executed.

For Chulalongkorn Engineering Solutions Co., Ltd.

Name: Eng. Nattapong Siriwat, P.Eng.
Title: Lead Mechanical Engineer / Director
Signature: _________________________
Date: _________________________

For Thailand Bangkok Industrial Development Group

Name: Mr. Somchai Prasert
Title: Project Director
Signature: _________________________
Date: _________________________

Quotation Estimate No. QTE-2025-BKK-0472 — Mechanical Engineer Services — Thailand Bangkok
Chulalongkorn Engineering Solutions Co., Ltd. | 128 Sukhumvit Road, Bangkok 10110, Thailand
This document is generated electronically and is valid without a physical seal. © 2025

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