Asian Offshore Services (AOS) is an internationally recognised designer and manufacturer of modular buildings and cabins for onshore and offshore oil and gas, petrochemical and marine applications. The modules are designed to be installed individually, coupled or stacked at site or pre-coupled and stacked to form a ‘single-lift’.

Our modular design concepts are suitable for onshore process plants, offshore oil and gas platforms and marine or drilling support vessels. AOS specialises in three specific types of modular designs that are suitable for either new build projects or refurbishment of existing plant and equipment as follows:

  • E-house (electrical and instrument equipment rooms)
  • Living quarters
  • Multi-purpose

In support of our design and build services AOS also provide onshore or offshore site installation, hook-up and commissioning services of our modules.

Typical applications for offshore and onshore modular buildings and cabins


  • Electrical switchgear (MCC)
  • DCS process control
  • UPS and battery support systems
  • Fire and gas
  • Telecommunications
  • Power generation system controls (turbines or recips.)
  • Gas compression controls (turbines or recips.)

AOS E-houses can be designed in modular form that allows for pre-installation of electrical and instrument vendor equipment and factory testing prior to shipping to site in a controlled and clean environment. This dramatically reduces site hook up and commissioning time and provides major benefits particularly on fast-track projects.

Malaysian living quarters loadout.
E-house installed offshore Thailand.
Modular living quarters.
E-house loadout.
Loadout of stackable designed E-house.
E-house project Vietnam.
Modular living quarters assembly Malaysia.
Linkable onshore type of E-house.
Accommodation cabins showing typical two-man bedroom with en-suite bathroom.

AOS also provide full EPCC services for System Integration of any or all of the above shown electrical and instrument systems or install and commission ‘free-issue’ electrical and instrument equipment from client specified vendors.

Offshore Living Quarters

Our Living Quarters comprise:

  • Sleeper cabins with en-suite bathrooms
  • Mess room with all furnishings
  • Galley with all associated equipment and utensils
  • Recreation rooms with all associated entertainment equipment
  • Laundry room with washers / dryers
  • Radio room
  • Office with all furniture
  • Medical facilities
  • Changing rooms with lockers
  • Helicopter administration lounges
  • General washroom modules

Multi-purpose modules or cabins

We offer the following multi-purpose modules or cabins:

  • Workshops
  • ROV control rooms
  • Generator enclosure
  • Hydraulic control modules
  • Laboratories
  • Mud logging cabins
  • Telecommunications
  • Control room

Detailed engineering and specification for offshore modules and cabins

All AOS modules and cabins are fully customisable to meet the client’s specifications and requirements, which take the following into consideration where necessary during detailed in-house design engineering:

  • Hazardous area classification
  • Certifying Authority classification
  • Clients own company specifications
  • Weight constraints
  • Footprint space constraints
  • Fire or blast ratings
  • Fire and gas system integration
  • Air conditioning, heating and cooling system specifications (HVAC)
  • LV and HV electrical equipment regulations
  • Architectural material specifications
  • Piping and drains requirements
  • Fixtures, fittings and furnishings
  • Flooring material

Living quarters and E-house refurbishment services

AOS also provide living quarters and E-house refurbishment services for offshore platforms, FPSO, FSO or marine and drilling support vessels in the following categories:

  • Architectural
  • HVAC
  • Insulation
  • Flooring
  • Toilet and shower units
  • Piping and plumbing
  • Electrical and instruments

Support materials for modular buildings and cabins

In support of AOS modular buildings and cabins to the offshore oil and gas and marine / drilling sector, AOS also supplies aluminium helidecks, aluminium structures and architectural materials such as firewalls, blast rated walls, fire doors, liner wall panels, ceiling panels, emergency escape hatches, fire-rated windows, wet-units (shower and toilet units), flooring systems and furniture.