About Glenfield Invicta

Delivering Project Solutions

Market Leader

Glenfield Invicta is a market leader, with a long and proud heritage going back over 170 years for  innovation and engineering excellence. We have gained considerable experience and expertise in the designing, manufacturing, and installation of specialist valves and penstocks for the water supply industry, which includes; clean water, wastewater, dams and reservoirs, as well as hydropower and non-utility infrastructure.

We can offer our customers an ‘end-to-end’ solution covering survey, design, refurbishment, installation as well as commissioning and asset maintenance and management, saving them time and money. As a dedicated member of the AVK Group our customers benefit from access to an industry-leading portfolio of products and fittings.


Glenfield Invicta together with the AVK Group are committed to sustainability and using design and innovation to develop quality products that last and play a vital part in improving the health of people around both in the UK and across the world and protecting our most precious resource – water.

Glenfield Invicta don’t believe in standing still and are continually investing and exploring initiatives that will improve the services we offer our clients as well as investing in our most important asset our team. Read more about sustainability.

Our Vision

It is our vision to be:

  • The leader in our industry
  • Our customers preferred supplier where quality, innovation, reliability, sustainability and customer service are of vital importance
  • A reliable and trustworthy business partner by acting responsibly while balancing financial, environmental, and social issues

Our Values

As part of the AVK Group we are aligned and committed to the Group’s core values:

  • Quality
  • Innovation
  • Reliability
  • Sustainability
  • Customer Service

Want to be part of our team? We are always looking for qualified and talented people to join the dedicated and highly skilled team. Go to Careers at Glenfield Invicta.

Our Range of Services

From concept to completion: Glenfield Invicta offer the following range of services:

  • Engineering Site Solutions - Supply and site installation
  • Valve supply, installation, refurbishment, and replacement
  • Valve and actuator packages: site surveys and health checks
  • Penstock supply & install package
  • Flood defence and environmental water management
  • Hydropower
  • Design and manufacture of ancillary equipment
  • All associated enabling, electrical and civil
  • Engineering services
  • Equipment commissioning
  • Scheduled maintenance and servicing contracts
  • Technical services and support
  • Extended warranties
  • Post contract training
  • UK and global coverage

Read more about our engineering excellence.