12 Blenheim Way
Bristol BS20 6YY

01275 843653

Speciality Gas Piping Installation
Compressed Gas Distribution System Gas Cylinders Pipework Installation High Quality Stainless Steel Pipework Gas Safety Pipework Installation Pressure Safety System Regulations Gas Installation Design
D & N Installations & Design Ltd

Experts in compressed gas distribution systems

D & N provide speciality gas installations to all sectors of industry and academia across the UK. We design bespoke systems for the distribution of compressed gases and fluids through high-quality pipework.

UK wide gas installation services

Based in Bristol in the South West of England, we carry out gas distribution installation and maintenance services throughout the UK.


  • Independent Design Consultancy
  • Gas Distribution System Installation
  • Bespoke System Manufacture
  • System Commissioning
  • Legal Compliance including Pressure Safety System Regulations 2000 (PSSR)
  • Compressed Gas System Maintenance
  • Hazard and Operability Studies (Hazop)
  • Gas Safety & Risk Assessments
  • Ultra High Purity (UHP) Orbital Welding
  • System P and IDs
  • 3D CAD
What We Do

D & N design custom piping systems to distribute compressed gases, including nitrogen, argon, helium and other inert gases. We have extensive experience of oxygen distribution systems and fuel gases such as hydrogen. D & N have years of applications expertise with semiconductor gases including silane and ammonia using high-quality specialist pipework with very high pressure tolerance.

Whatever your fluid handling requirements we can deliver a turnkey solution tailored exactly to your needs; which could encompass any (or all) of the following elements: design, manufacture, installation, commissioning and provision of documentation for legal compliance.

We also provide maintenance packages to assure continued safety and Presure Safety System Regulations 2000 compliance. This includes the production of written schemes of examination (WSEs). Please contact us for more details.

What Our Customers Say

"D & N promptly arrived and suggested a number of layouts tailored to our requirements and budgetary constraints. After all agreeing on a proposed plan, the work was carried out swiftly and with a minimum of disruption, often working unsociable hours during the weekend. I was greatly impressed by their high standards of workmanship and I therefore would have no hesitation in recommending D & N to anyone who wished to contract them for such work."

Mike Wilde Coatings, Manager, Gooch and Housego Ilminster.

"D & N carried out a comprehensive risk assessment as part of our project feasibility studies. The level of detail and professionalism displayed were excellent. The risk assessment was performed very efficiently and offered unrivalled value for money. I would thoroughly recommend them."

Dr Antulio Tarazona, MD Echerkon Technologies Ltd.

"D & N offered a professional, courteous and cost-effective service and the work was completed on schedule. Excellent communications, attention to detail and the use of the highest quality components made for a smooth installation of pipework into our clean room while working around the daily research activity which continued uninterrupted. Highly recommended."

Chris Coath, Bristol University

"D and N Installation and Design Ltd provided a bespoke high pressure pipework installation for Cardiff University's Gas Turbine Research Centre (GTRC). The work conducted by D&N was integral to the success of a new five component gas mixing facility that was being installed at the site for future research in the areas of alternative gaseous fuels for power generation gas turbines. I would definitley work with D&N again and would be happy to recommend them to a third party."

Steve Morris, Facility Manager, GTRC

Specialist Gas Pipework Installers