Collection: Window Security Bars

There are several types of window security bars, each designed for different security requirements, aesthetics, and operational needs.

1. Fixed Window Security Bars

The most common and robust solution, fixed window bars are permanently secured to the building and cannot be opened or removed without specialist tools. They provide the highest level of physical protection and are ideal for commercial buildings, schools, warehouses, and ground-floor windows.

Best for:

• Commercial premises
• Industrial buildings
• Schools
• Public sector buildings
• High-risk properties

2. Removable Window Security Bars

Removable security bars provide the same level of protection as fixed bars but can be detached when access is required for maintenance, cleaning, or emergency escape. They are commonly secured using tamper-resistant fixings or locking mechanisms.

Best for:

• Residential properties
• Heritage buildings
• Fire escape windows
• Buildings requiring occasional access

3. Hinged (Opening) Window Bars

Hinged security bars are permanently mounted on one side and can be unlocked to swing open. They provide security while maintaining emergency escape routes and easy access for window cleaning.

Best for:

• Bedrooms
• Escape windows
• Residential applications
• Care homes

4. Retractable Security Grilles

Although technically security grilles rather than bars, retractable grilles are often used as an alternative. They fold neatly to one side when not required, making them popular where appearance is important.

Best for:

• Homes
• Retail premises
• Offices
• Internal openings
• Listed buildings

5. Decorative Window Bars

Decorative bars combine physical security with architectural styling. Available in traditional, heritage, and bespoke designs, they're often chosen for period properties where appearance is just as important as protection.

Best for:

• Period properties
• Heritage buildings
• Residential homes
• Churches

6. High Security Window Bars (LPS 1175 Rated)

These are independently tested to LPS 1175 Security Ratings and are designed to resist determined attacks using a range of tools. They are specified where certified security is required for insurance, critical infrastructure, or high value assets.

Best for:

• Data centres
• Utility buildings
• Government facilities
• Critical infrastructure
• High value commercial premises

Our Window Security Bars are manufactured to measure and can be customised to meet the security, aesthetic, and operational requirements of virtually any property. Whether you're securing a residential home, commercial premises, school, or high security facility, we offer a wide range of design options to ensure the perfect balance of protection and appearance.

Fixed, Removable & Retractable Designs

Choose from permanently fixed bars for maximum security, removable bars where occasional access is required, or retractable security grilles that fold neatly away when not in use.

Bespoke Sizes

Every security bar is manufactured to the exact dimensions of your window, ensuring a precise fit and optimum security for both new and existing buildings.

Steel Bar Profiles

A variety of bar styles are available, including round bars, square bars, flat bars, and decorative designs to complement both modern and traditional architecture.

Security Ratings

For higher risk environments, selected products are available with independent LPS 1175 Security Ratings, providing certified resistance against forced entry and meeting the requirements of many commercial and critical infrastructure projects.

Powder Coated Finishes

Security bars can be finished in a wide range of standard colours or any RAL or BS colour, allowing them to blend seamlessly with existing windows, doors, and building façades.

Installation Options

Our security bars can be face fixed or reveal fixed depending on the window construction and security requirements. We also offer internal or external installation where appropriate.

Locking Options

Removable and retractable systems are available with a range of secure locking mechanisms, including keyed locks and tamper resistant fixings to provide both convenience and enhanced security.

Window Security Bars are a versatile security solution suitable for a wide range of residential, commercial, industrial, and public sector buildings. They provide an effective physical barrier against forced entry while maintaining visibility, ventilation, and natural light.

Residential Properties

Protect vulnerable ground floor windows, basement windows, patio doors, and side access points from opportunistic burglary. Removable and retractable options are particularly popular where emergency escape or aesthetics are important.

Commercial Buildings

Secure offices, retail premises, business units, and shopfront windows against theft, vandalism, and unauthorised access. High security and LPS 1175 security rated systems are available for higher-risk environments.

Schools & Educational Buildings

Protect classrooms, ICT suites, laboratories, and administration offices while maintaining a safe and secure learning environment. Security bars help safeguard valuable equipment during evenings, weekends, and school holidays.

Healthcare Facilities

Used to secure pharmacies, medicine stores, plant rooms, and restricted areas within hospitals, clinics, and care homes without restricting airflow or natural light.

Warehouses & Industrial Buildings

Protect offices, stores, workshops, and internal windows overlooking high-value production or storage areas. Heavy duty and security rated options provide enhanced resistance against attack.

Critical Infrastructure

Specified for substations, water treatment facilities, energy sites, telecommunications buildings, and data centres where independently tested LPS 1175 Security Rated Window Bars provide certified protection against forced entry.

Public Sector Buildings

Suitable for police stations, council buildings, government offices, transport hubs, and other public buildings requiring robust physical security and long term durability.

Retail Premises

Secure display windows, stockrooms, cash offices, and rear windows while helping to deter burglary and vandalism outside trading hours.

Heritage & Listed Buildings

Decorative and bespoke security bars can be manufactured to complement traditional architecture, providing enhanced security without detracting from the character of the building.

High Risk & Insurance Specified Applications

For sites storing valuable assets or where enhanced security is required by insurers, LPS 1175 Security Rated Window Bars offer independently tested protection against forced entry using a range of attack tools.

Window Security Bars provide a simple yet highly effective way to protect vulnerable windows against forced entry. Manufactured from high strength steel and made to measure, they offer a durable physical barrier while allowing natural light and ventilation to enter the building. Suitable for residential, commercial, industrial, and public sector properties, they are available in a variety of designs to meet different security and aesthetic requirements.

High Level of Security

Engineered to resist forced entry, our security bars provide a robust physical barrier that helps deter burglars, vandals, and unauthorised access.

LPS 1175 Security Rated Options

Selected models are independently tested and certified to LPS 1175 Security Ratings, providing proven resistance against professional attack methods and meeting the requirements of many insurers and high security projects.

Fixed, Removable & Retractable Designs

Choose from permanently fixed bars for maximum protection, removable bars where occasional access is required, or retractable grilles that can be folded away when not in use.

Made to Measure

Every security bar is manufactured to the exact dimensions of your window, ensuring a precise fit and maximum protection for virtually any opening.

Maintains Natural Light & Ventilation

Unlike solid shutters, security bars allow daylight and airflow to pass through while continuing to provide an effective security barrier.

Suitable for Internal & External Installation

Depending on the application, security bars can be installed internally or externally to suit the building layout and security requirements.

Durable Steel Construction

Manufactured from high quality steel for exceptional strength, long service life, and reliable protection in demanding environments.

Powder Coated Finish

Available in a wide range of standard colours or any RAL or BS colour to complement your property's appearance and provide long-lasting corrosion resistance.

When selecting Window Security Bars, it's important to consider products that have been independently tested and certified to recognised security standards. Certified products provide confidence that they have been assessed for their ability to resist forced entry and meet the performance requirements of high security applications.

LPS 1175 - Security Rated Window Bars

LPS 1175 is one of the UK's leading security testing standards, developed by the Loss Prevention Certification Board (LPCB). It assesses the ability of security products to withstand forced entry using a range of tools and attack methods within defined attack times.Window Security Bars tested to LPS 1175 Security Ratings offer independently verified protection against burglary and are commonly specified for:

• Commercial buildings
• Schools and universities
• Data centres
• Utility sites
• Critical national infrastructure
• Government buildings
• High value residential properties

Higher LPS 1175 ratings provide increased resistance against more determined attacks using a wider range of tools.

Secured by Design

Secured by Design (SBD) is the official Police security initiative that promotes the use of products proven to reduce crime. Many Window Security Bars are available with Secured by Design accreditation, demonstrating that they have been independently tested against recognised security standards and meet the requirements of the Police Preferred Specification.Secured by Design products are widely specified for:

• New housing developments
• Apartment buildings
• Schools
• Healthcare facilities
• Commercial offices
• Public sector projects

Choosing Secured by Design accredited products helps improve building security while supporting crime prevention through proven physical security measures.

Building Regulations & Fire Safety

Where Window Security Bars are installed on escape windows, it is essential that they do not compromise emergency egress. Removable or hinged security bars may be required to maintain compliance with Building Regulations and fire safety requirements. The most appropriate solution will depend on the building type, occupancy, and intended use of the window.

Why Independent Certification Matters

Independent testing provides assurance that a product has been evaluated by an accredited third party rather than relying solely on manufacturer claims. By choosing certified Window Security Bars, building owners, specifiers, and insurers can have confidence that the product has been designed and tested to deliver proven levels of physical security.

At Security Direct, we offer a range of Fixed, Removable, Retractable, and LPS 1175 Security Rated Window Bars, together with products recognised by Secured by Design, helping customers achieve the appropriate level of protection for their property.

Correct installation and regular maintenance are essential to ensure Window Security Bars provide reliable, long-term protection while remaining safe to use. Whether fitted to a residential property, commercial building, or high-security facility, security bars should always be installed using appropriate fixings and inspected periodically to maintain their performance.

Professional Installation

Window Security Bars should be installed by experienced professionals using the correct fixing methods for the building's construction. Depending on the application, bars may be face fixed or reveal fixed into brickwork, concrete, steelwork, or other suitable structural substrates to achieve maximum strength and security.

For LPS 1175 Security Rated Window Bars, installation must follow the manufacturer's tested fixing specification to ensure the certified level of security is maintained

Made to Measure Fit

Every window opening is different. Made to measure security bars provide a precise fit, eliminating gaps that could compromise security while ensuring a professional appearance and straightforward installation.

Emergency Escape Considerations

Where security bars are fitted to designated escape windows, it is important that they do not obstruct emergency egress. In these situations, removable or hinged security bars may be the most appropriate solution, helping maintain compliance with Building Regulations and fire safety requirements.

Routine Inspections

Although Window Security Bars require very little maintenance, they should be inspected regularly to ensure they remain secure and in good condition. Routine checks should include:

• Inspecting all fixings for signs of movement or loosening
• Checking for corrosion or accidental damage
• Ensuring removable or hinged systems operate correctly
• Verifying that locks and release mechanisms function smoothly
• Confirming that no unauthorised modifications have been made

Cleaning & Care

Security bars can be cleaned using warm water and a mild detergent to remove dirt and environmental deposits. Abrasive cleaners, solvents, and harsh chemicals should be avoided, as they may damage the protective powder coated finish.

(Indicative UK pricing – excludes VAT unless stated)

The cost of window security bars depends on size of opening, bar or mesh design,
security level (standard or LPS 1175 rated), finish, and installation
complexity.

Standard Fixed Bar Security Guards

Suitable for residential and low to medium risk commercial applications.

• Supply only: From £140 – £280 per window
• Supplied and installed: From £300 – £600 per window

Based on a typical ground floor window up to approx. 1200mm x 1200mm.

Standard Welded Mesh Security Guards

Heavy duty mesh panel within a reinforced frame.

• Supply only: From £180 – £350 per opening
• Supplied and installed: From £400 – £750 per opening

Mesh gauge and aperture size will influence cost.

Reinforced / High-Security Guards

For higher risk commercial or industrial environments.

• Supply only: From £400 – £800 per window
• Supplied and installed: From £750 – £1,400 per window

Pricing varies depending on steel thickness and frame reinforcement.

LPS 1175 Security Rated Guards (Levels 1–4)

Independently tested high-security systems.

Level 1–2

• Supply only: From £600 – £1,000 per opening
• Supplied and installed: From £900 – £1,600 per opening

Level 3–4

• Supply only: From £900 – £1,800+ per opening
• Supplied and installed: From £1,400 – £2,800+ per opening

Higher levels require reinforced frames and certified fixing methods.

Larger Commercial or Industrial Openings

For larger plant room or warehouse windows:

• Installed from £900 – £3,500+ per opening(depending on size and security level)

What Affects Final Pricing

• Opening size and shape
• Bar vs mesh design
• Security level (standard vs LPS 1175 Level 1–4)
• Powder-coated finish
• Internal vs external installation
• Structural substrate condition
• Site access and installation complexity

Getting an Accurate Quote

Security guards are made to measure, and pricing depends on exact opening dimensions and required security rating. A site survey is recommended to confirm structural fixing suitability, escape compliance, and final installation cost.