SHJ Medical Gas Specialists

Unit 4 Anglo Business Centre
Ashridge Road
United Kingdom
01494 782 168


Founded in 1967, SHJ is a leading supplier of medical gas pipeline systems and services and a market leader in remote monitoring and energy-saving technologies. We are trusted by NHS and private sector healthcare providers at over 130 sites across the UK. We help our customers deliver a high-quality, reliable medical gas supply to their patients and meet their commitments to prove compliance with statutory requirements.

We were honoured to win Healthcare Supplier of the Year at the Healthcare Estates IHEEM Awards 2021

We offer a fully comprehensive end-to-end service, including design, installation, servicing and maintenance of all medical and laboratory gas pipeline systems. Our experienced project managers and highly trained, directly-employed engineers pride themselves on building a deep understanding of your site to provide a superior level of service.

We put our customers’ needs first, offering nationwide coverage 24 hours a day, 365 days a year with an emergency response time of 4 hours. We only use the highest quality equipment, which gives our customers great value for money. Our confidence is reflected in our 5-year “no quibble” guarantee on all SHJ-branded plant.

We invest heavily in R&D to remain at the forefront of our industry. Our innovative technology products, particularly in the AI-driven field of preventative monitoring, predictive maintenance and energy saving, allow earlier attention to, and remote correction of, faults.

We understand the importance to our NHS customers of proving compliance. From PPM reports to plant diagrams to safety certificates, our market-leading portal K’nect holds all medical gas plant management data in one cloud-based system which can be accessed from the web at any time.



We put our customers’ needs first, offering nationwide coverage 24 hours a day, 7 days a week, 365 days a year.

We will be on site within 4 hours of your call. All our engineers are directly employed by us and fully trained to Competent Person (MGPS) level, with some trained to Authorised Person and Quality Controller level. They are all DBS-checked

We offer our customers:

  • 24/7 – 365-day support
  • A 24-hour emergency call out number
  • Rapid response times
  • Highly qualified engineers
  • A dedicated Account Manager
  • Real time monitoring
  • Complete management solutions


Our market-leading customer portal K’nect puts all plant management data at the customer’s fingertips for easy reference 24 hours a day, making proving compliance with statutory requirements quick and simple.


Our team of highly experienced engineers are located across the UK, providing nationwide coverage and fast response times for our customers, no matter where they are located.


Our service fits within three core product categories.


  • Medical Gas and Laboratory Gas Installation
  • Medical Gas Plant Installation
  • Medical Gas Alarm Installation
  • Gas Detection Systems


  • Planned Preventative Maintenance (PPM)
  • Plant Servicing
  • Plant Hire


  • Site Survey and Design
  • Consultancy Services
  • Authorised Persons (MGPS)
  • Project Management
  • Medical Gas Training
  • Testing and Installation
  • Quality Control Pharmaceutical Testing


We have developed a range of innovative technologies to make life easier for those responsible for medical gases in hospitals.

Empower is our intelligent plant control system providing fully automated control, ensuring medical gas plant is safe, reliable and working at maximum efficiency.

Any medical gas alarm system used by the customer can be managed using SHJ’s innovative Evolution technology, which offers a remote, multi-site monitoring and alert service 24 hours a day, 7 days a week.

Emanate harnesses the power of 21st century communications technologies to implement AI-driven techniques of medical gas plant control. Real-time diagnostics using big data analysis allow for ever-smarter predictive maintenance and energy saving measures, vastly increasing a system’s productivity and efficiency.

FLO2 monitors flow meters on oxygen pipelines and displays flow rates and line pressure instantly in K’nect. Users are alerted by email and text when oxygen supplies are approaching maximum capacity so they can respond quickly. FLO2 won Highly Commended in Product Innovation of the Year at the Healthcare Estates IHEEM Awards 2021.


Our standards comply fully with the requirements of HTM 02-01: Medical Gas Pipeline Systems.

We are a Company Affiliate Member with the Institute of Healthcare Engineering and Estate Management (IHEEM).

We hold Alcumus SafeContractor and CHAS accreditation and are Constructionline Gold Members.

We operate a Quality Management System and hold NQA certificate 173626, which shows that we comply with the requirements of ISO 9001:2015.

Our engineers undergo continuous in-house product training, verified by our Reset membership.

We have Cyber Essentials Plus certification.

We are Awarded Suppliers for the NHS London Procurement Partnership and the NHS North of England Commercial Procurement Collaborative.



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