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Duragen Engineering Company Limited Duragen Engineering Company Limited is committed and confident in providing a one stop service to our clients backed by our team of electrical and engine engineers who will offer keen after sales service and follow up. Our parts are also of the highest international standards ordered directly from abroad. At Duragen, “Efficient Service and Maintenance Are Our Main Objective.



Warranty Service


  • The company certifies to the quality of the generator manufactured or distributed by Duragen Engineering Company Limited for the period of 1 year
  • The warranty is effective from the day the generator is delivered to the client (first commissioning) or from the date stipulated on the warranty document.
  • The company provides free servicing in case of improper operation resulting from the fault of the manufacturer or parts failure resulting from normal usage covered by the products’ specifications in the company’s quotation.
  •  The company provides warranty for machines used in Thailand only.
  • The components not covered under the warranty are the battery, and perishable parts such as engine oil filter, air filter, solar filter, and lubricant.
  •  The company will void the warranty in case the model and serial number in the warranty document and those on the generator do not correspond, or the warranty document is damaged, torn, or shows information tampering in important sections.
  • The company will void the warranty immediately in case the generator is tampered with, or is relocated from its original location of installation by a party other than the Duragen company.
  •  The warranty does not cover damage to the parts resulting from crime, or deliberate destruction, fire, theft, or damage resulting from natural disasters such as flood, tsunami and earth quake.
  • Servicing advice via telephone from expert engineers at Tel. 02-328-2171-6

Package Service

Duragen provides maintenance check and repairs of Stamford generators, AC generators, and generator sets by expert teams well experienced in the business equipped with specialized equipment. The teams are able to check the electrical as well as the engine components from generators of 5 kVA to 2,750 kVA output. Duragen offers servicing anywhere in Thailand within 24-48 hours and stand behind a servicing warranty.
Besides this, the company can also overhaul generators in the engine area or the AC generator plus service genuine parts to ensure that our clients get the best and most efficient generators.

We provide a thorough annual check up for clients whose warranty has expired and require the peace of mind, through our special annual maintenance package. Clients can state their desired check up period, and we will be there anywhere in Thailand with documented results.