Security & Certifications
Steel Door Security Ratings, BS EN 1627 RC4, PAS 24 & Secured by Design
Certified Protection
Among the most secure residential entrance doors available in the United Kingdom
Every SteelR door is independently tested and certified to the highest security standards achievable for a residential entrance. Our residential steel front doors are tested to BS EN 1627:2011 RC4 single leaf, unglazed — the European framework for sustained forced-entry resistance — alongside Secured by Design police approval and ISO 9001 manufacturing certification. For homeowners across London, Virginia Water and beyond, this means genuine peace of mind.
BS EN 1627:2011
Security ratings explained
BS EN 1627:2011 is the European standard for testing the burglar resistance of doors, windows and curtain walling. It classifies products from RC1 (minimal resistance) to RC6 (government-level security) based on the tools used, the duration of attack and the skill level of the simulated intruder. SteelR doors are certified to RC4 single leaf, unglazed as Standard, with LPS 1175 SR3, SR4 and LPS 1673 available as upgrade tiers above this baseline.
Resists opportunistic attack with bodily force alone. Typical of standard uPVC doors and lightweight frames. Offers minimal protection against a determined intruder.
Withstands attack with simple hand tools such as screwdrivers, pliers and wedges. Some higher-quality timber and composite doors achieve this rating.
Resistance Class 3 under BS EN 1627:2011. Withstands a sustained attack using crowbars, drills, chisels and heavy-duty cutting tools.
Resistance Class 4 under BS EN 1627:2011. Adds battery-operated cutting and drilling tools and larger prying equipment to the test set. Every SteelR residential steel front door is tested to RC4 single leaf, unglazed. The European cert most often compared with LPS 1175 SR4, although the schemes test differently.
Ratings reserved for embassies, military installations, data centres and critical infrastructure. These require specialist construction beyond the scope of residential entrance doors.
Standards Compared
PAS 24 vs BS EN 1627 RC4
PAS 24:2022 is the minimum security standard required under UK Building Regulations (Approved Document Q) for new residential doors. It tests resistance to a casual opportunistic attack lasting around 1–3 minutes using basic hand tools.
BS EN 1627:2011 RC4, by contrast, certifies the complete door assembly against a sustained, multi-stage attack using heavy-duty hand tools and battery-operated power tools — drills, jigsaws, oscillating saws, larger crowbars and prying equipment. The difference is not incremental — it is a fundamentally higher tier of protection. Every SteelR door is tested to RC4 single leaf, unglazed.
Note on LPS 1175 SR ratings. LPS 1175 (operated by LPCB on behalf of BRE Global) is the UK police-preferred residential specification, distinct from the European BS EN 1627 framework. The two schemes use different tool sets, different attack durations and different test methodologies. SteelR offers BS EN 1627:2011 RC4 single leaf, unglazed as the Standard tier on every door, with LPS 1175 SR3 (Enhanced upgrade), LPS 1175 SR4 D10 Issue 8 (Commercial-grade upgrade) and LPS 1673 (Ultra-high, by enquiry) selectable as upgrade tiers above the Standard. The four-tier ladder is detailed on the full security specification page.
Every SteelR door exceeds PAS 24 by a significant margin. We engineer to BS EN 1627:2011 RC4 single leaf, unglazed as standard because we believe the minimum regulatory requirement is not sufficient for a premium residential entrance.
Police Approved
Secured by Design
Secured by Design (SBD) is the official police security initiative owned by Police Crime Prevention Initiatives Ltd. It sets a nationally recognised benchmark for crime prevention in buildings and their surroundings.
Products carrying the SBD mark have been independently tested and approved by a police-backed scheme. For homeowners, this provides an objective, third-party assurance that their entrance door meets or exceeds the security standards recommended by UK police forces.
SteelR doors hold full Secured by Design accreditation. This approval covers the complete door system — frame, leaf, locking mechanism and hardware — not just individual components.
Fire Protection
Fire rated steel construction
SteelR doors are constructed from heavy-gauge galvanised steel with fire-resistant insulating cores, capable of achieving fire ratings up to FD60 — maintaining structural integrity and preventing the passage of fire and smoke for up to 60 minutes.
Unlike timber or composite doors, steel does not warp, crack or delaminate under extreme heat. This inherent material advantage means a SteelR door provides both security and fire protection in a single, engineered system.
Manufacturing Quality
ISO 9001 certified
ISO 9001 is the internationally recognised standard for quality management systems. It requires documented processes, consistent quality control and continuous improvement across every stage of manufacturing.
SteelR doors are manufactured in ISO 9001 certified facilities, ensuring that every door — from raw steel through to finished product — meets the same exacting standard. This certification provides assurance that quality is built into the manufacturing process, not inspected in afterwards.
Common Questions
Frequently asked questions
What security rating do your residential steel front doors have?
Every SteelR residential steel front door is tested to BS EN 1627:2011 RC4 single leaf, unglazed — the European framework for sustained forced-entry resistance, certifying the complete door assembly against heavy-duty hand tools and battery-operated power tools. RC4 is materially above the PAS 24 hardware-only test mandated for new-build dwellings and is rarely offered as a residential standard in the UK.
Does SteelR carry an LPS 1175 SR rating?
Yes. LPS 1175 (operated by LPCB, the Loss Prevention Certification Board, on behalf of BRE Global) is the UK police-preferred residential security specification, distinct from the European BS EN 1627 framework. SteelR offers two LPS 1175 ratings as upgrade tiers above the BS EN 1627:2011 RC4 Standard residential specification: LPS 1175 SR3 (Issue 8) as the Enhanced upgrade tier, and LPS 1175 SR4 (D10 Issue 8) as the Commercial-grade upgrade tier. LPS 1673 attack-resistance is available as the Ultra-high tier by enquiry. Every SteelR door is BS EN 1627:2011 RC4 single leaf, unglazed certified as Standard, with the three LPS upgrade tiers selectable at specification.
Is PAS 24 enough for home security?
PAS 24:2022 is the minimum security standard required by UK Building Regulations (Approved Document Q) for new-build residential doors. While it provides a baseline level of protection against opportunistic attack, it is significantly less rigorous than BS EN 1627 RC4. PAS 24 testing simulates a casual attack lasting around 1–3 minutes; BS EN 1627 RC4 tests a sustained, multi-stage attack with heavy-duty hand tools and battery-operated power tools. For homeowners seeking genuine peace of mind, BS EN 1627 RC4 (every SteelR door's certification) offers substantially greater protection.
What does Secured by Design mean?
Secured by Design (SBD) is the official UK police security initiative that sets standards for crime prevention in the built environment. Products carrying the SBD accreditation have been independently tested and certified to meet police-preferred security specifications. SteelR doors hold Secured by Design approval, meaning they have been vetted by the police-backed scheme as offering a high level of resistance to forced entry.
Are steel doors fire rated?
Yes. Steel doors can achieve fire ratings of up to 60 minutes (FD60), meaning they will maintain their structural integrity and prevent the passage of fire and smoke for that duration. SteelR doors are constructed from heavy-gauge galvanised steel with fire-resistant cores, providing both security and fire protection in a single door system. Specific fire rating requirements can be discussed during your consultation.
Bespoke · UK manufactured · BS EN 1627 RC4 · LPS 1175 SR3 / SR4 available
Enquire about a bespoke SteelR door for Security Doors
Free consultation with our design team. No obligation. Every door is manufactured in the UK to your specification. Standard residential spec is BS EN 1627:2011 RC4 single leaf, unglazed. LPS 1175 SR3 and SR4 enhanced and commercial-grade certifications are available on request, with LPS 1673 attack-resistance by enquiry. Installed by our in-house fitters.