Surrey
Steel Security Doors in Sunbury-on-Thames
Steel security doors from Gerda and SteelR provide the highest level of home security available. Gerda doors achieve RC3 and RC4 resistance class ratings — tested against sustained forced entry with heavy tools. SteelR doors combine industrial-grade steel cores with contemporary designs and thermal insulation.
Steel Security Doors Installers in Sunbury-on-Thames, Surrey
Premium aluminium and uPVC glazing in Sunbury-on-Thames. FENSA registered installation with free surveys and a 10-year guarantee.
Why Choose Steel Security Doors for Your Sunbury-on-Thames Home
RC3/RC4 resistance class — the highest residential security rating
Multi-point locking with 17+ locking points on Gerda models
Steel core with 62mm insulated fill for U-values from 0.8 W/m²K
200+ designs from contemporary flush panels to heritage styles
Technical Specifications
Gerda doors: 72mm thick, 1.5mm galvanised steel skin, 17-point locking, RC3/RC4 rated. U-value from 0.8 W/m²K. SteelR doors: 62mm slab, 1.2mm steel with foam core, 5-point locking, Secured by Design. Both available in 200+ RAL colours.
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