Mesh fencing: Zenith A1 (SR1)

High-security fencing system

The Zenith range includes Zenith A1 (SR1), Zenith  B3 (SR2) and Zenith SR3. Zenith system offers a high level of protection against vandalism, intrusion and terrorist activity thanks to the combination of its anti-climbing 358 mesh system, secure foundations and security toppings, such as barbed wire. Each Zenith system has been designed to meet a range of security needs and has been rigorously tested by the Building Research Establishment to gain the necessary security ratings to meet industry standards.

Zenith A1 (SR1) is made up of a single panel of welded steel mesh skin. It is suitable for protecting large areas and premises as businesses, schools, hospitals and manufacturing sites against opportunistic

attacks. It could, for example, provide necessary level of security at a school, while keeping children’s fingers out.

Zenith fencing is easy to install thanks to the prefabricated panels. Panels for Zenith B3 (SR2) and SR3 are welded together in the Heras factory, forming a more solid construction that is designed to last for years. Installation requires minimal amount of fixings per post, which makes it quick and easy to install, but it’s also far more aesthetically pleasing.

Each Zenith system can be enhanced with a Perimeter Intrusion Detection System (PIDS).

LPCB: Loss Prevention Certification Board

Heras offers high security gate and fencing solutions designed for sites with infrastructure critical assets including data centers, distribution centers and power plants.

The Zenith products hold accreditations including those by LPCB to LPS 1175, and endorsements such as the police approval platform Secured by Design. Accredited products provide proven, demonstrable protection which is recognised by insurance companies through reduced premium costs.

Read more about LPCB.

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Perimeter protection is paramount for utility companies, nuclear power stations, airports, military sites, and oil and gas terminals.

The higher the safety risk to people, premises and assets, the more important it is to ensure that robust and effective security systems are in place. Heras’ Zenith high security mesh fencing systems are the answer; they’re LPCB certified, extremely safe and secure, easy to install and designed to last.


Fences with the longevity of a house. You can be confident that they will still protect your site year after year. Thanks to a specialised galvanizing process, our fencing is resilient against atmospheric corrosion / rust formation, free from sharp edges, and has greatly improved protection against surface damage. This process is more environmentally friendly, without compromising on quality.

Why choose a pre-galvanized fence?

  • Smooth surface, no unevenness
  • Pleasing to the eye
  • Lower purchase price
  • Sustainable alternative
  • Powerful protection