from conception to completion

we do it all ALL UNDER ONE ROOF

J&D McLennan has long been regarded as one of the largest and most comprehensively equipped engineering shops in the Wellington region. You can get it all done here because we think on the product level, not just the part level. 

From conveyors to cranes, container dollies to catering vehicles, scissor hoists to road-making equipment, our commitment to quality service and solutions is at the centre of our business. 



  • Mechanical Engineering
  • Electrical Engineering
  • Steel Processing & Fabrication
  • Machining
  • Industrial Electrical Systems
  • PLC / Automation
  • Prototyping
  • Design & Manufacturing
  • Custom Fabrication


since 1945

our history

Factory 1945_1500px.jpg

J&D McLennan Ltd was established in Wellington in 1945 after brothers James and Duncan McLennan returned from serving in the armed forces during World War II. The company started life as a general engineering and maintenance business servicing the local community and operating out of old horse stables in Petone.

J&D McLennan is now one of the largest and most complete engineering shops in the Wellington area. Constant investment in production machinery and techniques have extended our capabilities as general engineers with a strong mechanical background to offer a wide range of design and fabrication solutions.

A family firmly founded in engineering and maintenance.

In recent years we’ve become recognised globally for the design of aviation ground support equipment as the manufacturing arm of Airport Equipment which has installations in every major airport in the South Pacific and beyond

Since 1974 we have manufactured and installed more than 250 aircraft passenger boarding bridges for Airport Equipment with all electrical design and construction and fabrication and assembly carried out in-house. Our team is also responsible for site installation.


experience & expertise

our team

J&D McLennan has the experience, expertise and flexibility to handle projects of all sizes.  

We employ over 35 specialists across seven departments. Our team offers a broad range of skills and expertise in mechanical and electrical engineering that combine to make us one of the most complete engineering shops in New Zealand. 

Our specific skills focus on welding, fabrication, sheet metal work, steel processing, electrical design and installation, CNC and conventional machining, CAD/CAM and mechanical design.