Security Doors - LPS1175 Security Level 4

LPS1175 SR4 Certified Security

Tested to Security Rating Level 4 for resistance against sustained attacks

High-Security Steel Construction

Heavy-duty design built for strength, durability, and long-term performance

Over 100 Locking Configurations

Extensive choice of single and multi-point locking systems

Personnel, Panic & Escape Hardware

Wide range of hardware options including BS EN 179 compliant escape systems

Single and Double Door Options

Available in configurations to suit various access requirements

Made to Measure Design

Manufactured to your exact sizes for a precise and secure fit

Advanced Locking Systems

Supports high-security cylinders and multi-point bolting solutions

Optional 400mm Louvre Panel

Provides ventilation while maintaining certified security performance

No Vision Panel Options

Maintains maximum structural integrity and security rating

Suitable for High-Risk Applications

Ideal for commercial, industrial, and infrastructure environments

Durable Powder-Coated Finishes

Available in a wide range of RAL and BS colours

Low Maintenance & Long Lasting

Robust construction ensures long service life with minimal upkeep

Our LPS1175 SR4 Steel Security Doors are designed for high-risk environments, offering a wide range of configuration and hardware options while maintaining strict certified security performance.

These doors can be tailored to meet both operational and compliance requirements.

Door Configuration

Available as single or double doors, allowing flexibility for different opening sizes and access requirements.

Double doors can be fitted with secure locking to both leaves.

Security Certification (LPS1175 SR4)

Certified to LPS1175 Security Rating Level 4 (SR4), providing resistance against sustained and more aggressive forced entry attempts using advanced tools.

Sizes & Made-to-Measure Options

Each door is manufactured to your exact dimensions, ensuring a precise fit and maintaining certified performance when installed correctly.

Locking & Hardware Options

A key feature of SR4 doors is the extensive hardware flexibility, including:

• Over 100 locking configurations available
• Single and multi-point locking systems
• High-security cylinders and locking mechanisms
• Wide choice of Mico Tindall and equivalent hardware systems

Personnel, Panic & Escape Hardware

Doors can be configured with a full range of access and escape options, including:

Personnel access hardware (lever handles, secure entry systems)

Panic and escape hardware compliant with BS EN 179This allows the door to function as both a secure access point and a compliant emergency exit.

Louvre Panel Option

A 400mm square louvre panel is available where ventilation is required.

(Note: Louvre options may be subject to hardware compatibility)

No Vision Panel Options

To maintain the integrity of the SR4 security rating, vision panels are not available.

Colour & Finish Options

Doors are supplied galvanised as standard or can be powder coated in any RAL or BS colour to match building aesthetics or branding.

Hardware & AccessoriesAdditional options include:

• Door closers
• Threshold options
• Security accessories and reinforcements
• Integration with access control systems (where applicable)

Internal or External Application

Suitable for both internal and external installations, with specifications adapted to suit environmental exposure and operational demands.

These design and customisation options ensure your SR4 steel security doors deliver a high level of certified protection, flexibility, and durability for the most demanding environments.

• Door Construction: Single or double leaf steel security door sets
• Material: Heavy-duty galvanised steel construction
• Security Rating: Certified to LPS1175 Security Rating Level 4 (SR4)
• Certification: LPCB approved (Issue 7 / Issue 8 depending on specification)
• Door Operation: Hinged door (inward or outward opening as required)
• Frame: Heavy-duty steel frame suitable for approved substrates
• Finish: Galvanised as standard or powder coated to any RAL / BS colour
• Hinges: Heavy-duty, security-rated steel hinges

Locking Systems:

• Over 100 locking configurations available
• Single and multi-point locking systems
• High-security cylinders and locking mechanisms

Hardware Options:

• Personnel access hardware (lever handles, secure entry systems)
• Panic and escape hardware compliant with BS EN 179
• Door closers and security accessories

Fire Exit Hardware:

• Push pads and escape hardware options available
• Designed for compliant emergency egress

Ventilation:

• Optional 400mm square louvre panel
• Subject to hardware compatibility

• Vision Panels: Not available (to maintain SR4 security integrity)
• Seals: Perimeter seals for operational performance
• Threshold Options: Standard, low threshold, or rebated options available
• Installation: Suitable for internal and external applications
• Compliance: Meets LPS1175 and relevant UK security standards when installed correctly
• Usage: Designed for high-risk commercial, industrial, and infrastructure environments
• Durability: Suitable for high-frequency use in demanding conditions
• Maintenance: Low maintenance with long service life

Our LPS1175 SR4 Steel Security Doors are manufactured to order, with a typical lead time of 5–6 weeks from order confirmation and final specification. This allows for the production of high-security door sets that meet strict certification requirements and project-specific needs.

Please note that complex specifications, such as bespoke sizes, specialised locking configurations, or integration with access control systems, may influence the overall lead time. We will always confirm accurate timescales at quotation stage to support your project planning.

We offer a professional supply and installation service, ensuring doors are installed correctly into approved substrates and in line with LPS1175 certification requirements. For supply-only orders, we provide detailed installation guidance to ensure the door achieves its certified security performance.

The cost of LPS1175 SR4 Steel Security Doors reflects their high level of certified protection, reinforced construction, and advanced locking systems.

These doors are designed for demanding, high-risk environments, and pricing will vary depending on size, configuration, and hardware specification.

Indicative Pricing

Standard SR4 Steel Security Door (Single Door)

• Supply Only: £1,500 – £2,500
• Supply & Install: £2,500 – £4,000

Double SR4 Steel Security Doors

• Supply Only: £2,800 – £4,800
• Supply & Install: £4,500 – £7,000

SR4 Doors with Advanced Locking Systems

• Supply Only: £1,800 – £3,200
• Supply & Install: £3,000 – £5,000

SR4 Doors with Fire Exit / Panic Hardware

• Supply Only: £1,700 – £2,800
• Supply & Install: £2,800 – £4,500

Bespoke / Large / High Specification Doors

• Supply Only: £2,500+
• Supply & Install: £4,000+

Factors Affecting Price

Several factors will influence the final cost:

• Security Rating: SR4 certification and reinforced construction
• Size & Configuration: Larger or double doors significantly increase cost
• Locking Systems: Choice of hardware and number of locking points
• Hardware Type: Personnel, panic, or escape hardware requirements
• Finish: Powder coating or specialist coatings
• Installation Complexity: Site access, structural opening, and lifting requirements

Installation Considerations

SR4 doors are significantly heavier than standard doors, typically weighing around 80kg per m².

This increased weight means:

• Specialist lifting equipment may be required
• Additional labour may be needed for safe installation
• Structural considerations may impact fitting costs

As a result, installation costs are generally higher compared to lower security-rated doors.

Additional Costs to Consider

• Delivery depending on location
• Removal of existing doors
• Structural or builder’s works
• Electrical works if integrating access control systems

Get an Accurate Quote

Due to the complexity and weight of SR4 doors, we strongly recommend requesting a tailored quotation. Our team can assess your requirements and provide the most suitable specification while ensuring compliance, safety, and value for money.