Retractable Security Grille - LPS1175 Level 1

LPCB Certified Security Protection

CS11 retractable grille tested to LPS1175 Security Rating 1 (SR1) for independently verified security

Secured by Design Approved

Meets police and insurance-preferred specifications for enhanced peace of mind

Four-Point Hook Locking System

Heavy-duty multi-point lock with reinforced attack plates for increased resistance

Bolted Steel Construction

Stronger than riveted systems, providing improved durability and security

Smooth Top-Rolling Operation

Nylon-coated bearings ensure quiet, reliable, and effortless daily use

Discreet Internal Installation

Maintains natural light and visibility while delivering effective protection

Flexible Track Options

Available with fixed, lift-up, or removable bottom tracks for different applications

Single or Double Stack Configurations

Allows the grille to retract neatly to one or both sides

Choice of Lattice Designs

Available in “X” or “S” patterns to suit your preferred aesthetic

Custom Made to Measure

Manufactured to suit openings up to 6m wide x 3m high

Wide Range of Colour Finishes

Over 50 standard colours available, plus bespoke RAL/BS options

Suitable for Multiple Applications

Ideal for retail, commercial, public sector, and residential properties

The CS11 Security Retractable Grille is designed to meet strict LPS1175 certification requirements, while still offering a range of options to suit different openings, applications, and aesthetic preferences. All configurations are engineered to maintain the integrity of the SR1 security rating.

Made-to-Measure Design

Each CS11 grille is manufactured to your exact dimensions:

• Suitable for windows, doors, and shopfronts
• Maximum size: up to 6m wide x 3m high
• Designed for a precise fit within or across the opening

Lattice Design Options

Choose from two grille patterns:

• “X” Lattice Design – Traditional diamond pattern for a classic security look
• “S” Lattice Design – More open, modern appearance with improved visibility

Configuration Options

To suit different operational needs:

Floating Sash

• Flexible operation across the opening
• Ideal for windows and adaptable use

Fixed Sash

• Permanent positioning for maximum security
• Suitable where regular access is not required

Stacking Options

• Single Stack or Double Stack configurations available
• Allows the grille to retract neatly to one or both sides
• Maximises clear opening width when not in use

Bottom Track Options

Designed for both windows and doorways:

• Fixed Bottom Track – Standard option for most installations
• Lift-Up Track – Hinged design to eliminate trip hazards (ideal for doorways)
• Removable Track – Lift-out option for clear access and cleaning

Important Design Limitations (Certification Compliance)

• No hinge-around facility available (to maintain LPS1175 SR1 certification)
• All configurations must comply with tested and approved specifications

Installation Options

• Face fix or reveal fix
• Internal installation only
• Must be installed in accordance with approved fixing methods to maintain certification

Colour & Finish Options

• Over 50 standard powder-coated colours (Band A & B) at no extra cost
• Full RAL / BS colour range available for bespoke finishes
• Designed to match interior décor or brand identity

Security-Focused Design Enhancements

• Bolted construction for increased strength over riveted systems
• Four-point locking system with attack plates integrated into the design
• All features engineered to maintain SR1 certification performance

Application Flexibility

Suitable for:

• Retail shopfronts and counters
• Offices and commercial buildings
• Schools, hospitals, and public sector sites
• Residential properties requiring insurance-approved security

These design and customisation options ensure the CS11 delivers a fully compliant solution that balances certified security, usability, and visual integration, while maintaining the integrity of its LPS1175 SR1 rating.

Product Type:

• LPCB certified retractable security grille

Security Rating:

• Tested and certified to LPS1175 Issue 7 – Security Rating 1 (SR1)
• Approved by the Loss Prevention Certification Board (LPCB)
• Complies with Secured by Design (SBD) requirements

Construction:

• All-steel construction with heavy-duty components
• Bolted assembly (not riveted) for increased strength and durability
• Designed to resist forced entry, prying, and attack

Lattice Design:

• Available in “X” lattice pattern (standard diamond design)
• Available in “S” lattice pattern (more open appearance)

Operation:

• Top-hung, top-rolling system
• Fitted with nylon-coated steel bearings for smooth and quiet operation
• Designed for frequent daily use

Locking System:

• Four-point hook locking system
• Integrated attack plates for enhanced resistance
• Operated by a single key

Configurations:

• Floating sash
• Fixed sash

Stacking Options:

• Single stack or double stack configurations
• Allows grille to retract neatly to one or both sides

Bottom Track Options:

• Fixed bottom track
• Lift-up (hinged) track for doorways
• Removable (lift-out) track for clear access

Design Limitations (Certification):

• No hinge-around facility (to maintain SR1 certification)
• Maximum size: 6m (W) x 3m (H)

Installation Options:

• Face fix or reveal fix
• Internal installation only
• Must be installed in accordance with LPCB-approved fixing methods

Finish:

• Powder coated as standard
• Over 50 standard colours (Band A & B) included
• Full RAL / BS colour range available on request

Durability:

• Designed for long-term internal use
• Corrosion-resistant steel components

Maintenance:

• Low maintenance system
• Periodic inspection of tracks, bearings, and locking mechanism recommended

Application:

• Suitable for retail, commercial, public sector, and residential properties
• Ideal for windows, doors, and shopfront security

Warranty:

• Typically supplied with a 12-month manufacturer’s warranty (subject to specification)

Lead Time

The CS11 Security Retractable Grille is manufactured to order, with a typical production lead time of approximately 3 weeks from order confirmation and final specification. This includes the fabrication of the grille to meet LPS1175 SR1 certification standards, ensuring quality and compliance.

Lead times may vary slightly depending on opening size, configuration, and colour selection, particularly for bespoke finishes or larger commercial projects. Confirmed timescales will be provided at quotation stage.

Installation

Installation of the CS11 grille must be carried out in accordance with LPCB-approved fixing methods to maintain the integrity of the SR1 security rating.

• Suitable for internal installation only
• Can be face fixed or reveal fixed depending on site conditions
• Must be securely fixed into suitable structural substrates, typically masonry or reinforced openings
• Accurate alignment is essential to ensure smooth operation and correct locking performance

For best results, professional installation is recommended to ensure the system operates correctly and remains compliant with insurance and Secured by Design requirements.

The CS11 Security Retractable Grille is a certified, insurance-approved security product, and pricing reflects its LPCB testing, enhanced construction, and upgraded locking system. Compared to standard folding grilles, the CS11 sits at a higher price point due to its SR1 security rating and reinforced design.

Indicative Pricing

Small Windows (Up to 1m²)

• Supply Only: £350 – £700
• Supply & Install: £550 – £1,000

Medium Openings (1m² – 3m²)

• Supply Only: £600 – £1,200
• Supply & Install: £900 – £1,800

Large Openings / Doors (3m²+)

• Supply Only: £1,000 – £2,200+
• Supply & Install: £1,500 – £3,200+

Wide Shopfronts / Commercial Installations

• Supply Only: £2,000 – £4,500+
• Supply & Install: £2,800 – £6,000+

Factors Affecting Price

The final cost will depend on several key factors:

• Size of Opening: Larger grilles require heavier-duty components
• Configuration: Floating sash vs fixed sash
• Stacking Option: Single or double stack
• Bottom Track Type: Fixed, lift-up, or removable track
• Security Features: Integrated SR1 locking system and attack plates
• Finish: Standard colours vs bespoke RAL/BS finishes
• Installation Requirements: Compliance with LPCB-approved fixing methods

Installation Considerations

Due to its certified nature, the CS11 requires:

• Installation in line with LPS1175 requirements
• Secure fixing into approved structural substrates
• Accurate alignment for locking and smooth operation

This can increase installation costs compared to non-rated grilles.

Additional Costs to Consider

• Lift-up or removable bottom tracks
• Bespoke colour finishes
• Access equipment (if required)
• Installation in restricted or complex areas

Budget Guidance

Typical budgets are:

• Domestic applications: £700 – £1,500 per opening installed
• Commercial applications: £1,200 – £3,000+ per opening installed
• Large shopfronts / high-use areas: £2,500 – £6,000+ installed

Get an Accurate Quote

As all CS11 grilles are made to measure and certified systems, we recommend requesting a tailored quotation. Our team can ensure the correct specification is selected to meet insurance, Secured by Design, and site-specific security requirements, while balancing performance and budget.