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Onshore services

At Costain, we pride ourselves in our ability to solve unique challenges; providing advisory, consultancy and conceptual work for our clients. We enhance the operability and profitability of our clients’ assets by providing full project lifecycle solutions, supported by a strong safety, health and environment and industrial relations culture, and best in class systems.

Easington Terminal at night

As an international leader in the design and supply of gas processing plants, we have extensive experience in all aspects of gas processing. From brownfield modifications to greenfield developments, our team has the knowledge and drive to exceed your requirements time and again.

Costain can support you across all phases of the gas processing asset lifecycle, right through from feasibility, concept definition and selection to preliminary engineering, detailed design, construction, commissioning and operational support.

Terminals - gas and oil

We have a long track record in delivering major gas terminal projects for blue chip customers. Our team of multidisciplinary specialists stay at the leading edge of gas chain innovation by advancing our technologies, patents and portfolio of intellectual property.

Learn more about our capability in terminals.

Cryogenic processing and liquefied gas

We deliver safe and reliable plants and processes for the liquefaction of natural gas. We have extensive international and UK experience in cryogenic gas processing on new liquefaction plants and LNG import and storage terminals, as well as for the modification of existing assets.

Learn more about our capability in: 


Nitrogen rejection 

NGL extraction

Gas compression

We have considerable expertise in gas compression for the oil and gas industry, supplying gas turbine and electrically driven compression solutions to suit your unique needs. Costain brings a wealth of gas compression experience to your project, from front end consultancy right through to delivering EPCm projects; we can solve your most complex compression challenges, such as minimising environmental and economic impacts or maximising production from depleting fields. Our engineers will work with you to maximise your asset value worldwide.

Learn more about our capability in gas compression.

Refining and petrochemicals

We deliver value and innovation across all phases of the downstream project and operations lifecycle. Our comprehensive capability includes considerations as diverse as:

  • Health, safety and environmental optimisation
  • Environmental impact abatement using best available technology]
  • Process development, process flowsheet optimisation, machinery configuration and driver selection, energy efficiency, plant reliability and availability
  • Plant construction execution and logistics including extensive experience in modularisation to reduce site activities

Industrial services

Our industrial services team applies the same high standards for which Costain is respected in the engineering world to support services operations. We listen to each client’s requirements then tailor individual service packages to meet their needs. We deliver cost effective processes combined with the highest standards of safety and focussed customer care.

Our key service offerings are industrial cleaning (e.g. tanks, vessels, heat exchangers, drains and interceptors), provision of labour for shutdowns and turnarounds (to support maintenance and operations) and waste management.



Over £4m worth of consultancy wins for Costain’s Energy business