GTS Maintenance Limited, provide specialist maintenance services to the gas containment, waste water and bio-gas industry, including steel anaerobic digester & gas holder roof design, manufacture and maintenance. Together with refurbishment of anaerobic digesters & gas holders. GTS Nitrogen Services provide, Nitrogen purging, Shrink fitting, Gas freeing, Dying, Pressurising, Hardening, Refrigeration, Embrittlement, Ground freezing utilising gas or liquid Nitrogen.