Letter Box Security Plates

Our Letter Box Security Plates are designed to fit over letterboxes, preventing unwanted letters and mail from piling up inside unoccupied or abandoned properties.

300mm letterbox security plate on door. Scene of grey background.
400mm letterbox security plate on door. Scen of grey background.
Exploded view of security letterbox cover components.
Letterbox from inside showing security plate fittings

Excess mail can create a fire hazard and attract unwanted attention. These plates provide an added layer of protection against letterbox intrusion attacks, giving you peace of mind. 

Key Features

Tamper-Resistant Fixings

Can only be removed from inside.

Galvanised Steel icon

Heavy-Duty Zinc Coated Steel

Corrosion-resistant for long-lasting security. 

Powder coating icon

Optional Powder Coating

Plates can be powder coated on request to match your property’s aesthetics. 

400mm security letterbox cover unpainted

Letter Box Security Plate 400mm Upainted

Product ID
Height100mm
DepthUp to 80mm letter box
Width400mm
Weight3.2kg
ColoursUnpainted
400mm security letterbox cover in powdercoated white

Letter Box Security Plate 400mm White

Product ID
Height100mm
DepthUp to 80mm letter box
Width400mm
Weight3.2kg
ColoursWhite
300mm security letterbox cover unpainted

Letter Box Security Plate 300mm Upainted

Product ID
Height100mm
DepthUp to 80mm letter box
Width300mm
Weight2.3kg
ColoursUpainted
300mm security letterbox cover in powdercoated white

Letter Box Security Plate 300mm White

Product ID
Height100mm
DepthUp to 80mm letter box
Width300mm
Weight2.3kg
ColoursWhite
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Spec Sheet Coming Soon

Our promise to you

  • Flexible and reliable project management Flexible and reliable project management
  • High quality craftsmanship High quality craftsmanship
  • Individual customer care Individual customer care
  • Strategic location, easing delivery across the country Strategic location, easing delivery across the country