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What are Window Safety Bars?
Window safety bars are protective barrier systems installed internally across low-level windows to reduce the risk of falls. They are designed to prevent occupants, particularly children, from accidentally falling through openings that are close to floor level.
Under updated Part O of the Building Regulations, protective guarding is required where window openings:
- Are wider than 100mm, and
- Have a sill height of less than 1100mm from finished floor level
Window safety bars provide a compliant solution by creating a physical barrier while still allowing ventilation and natural light.
Our range includes:
- Single chrome tube safety bars, tested to BS 6180:2011
- Stainless steel barrier systems available in 900mm or 1100mm heights
These systems are commonly installed in residential properties, apartments, schools, and commercial buildings where fall protection is required without fully restricting window operation.
Window safety bars are a compliant and discreet method of improving safety at low level windows while maintaining airflow and visibility.
Window Safety Bars Information and Buying Guide
Types of Window Safety Bars
Types of Window Safety Bars
We offer two main types of window safety bars designed to provide compliant fall protection for low level windows.
Single Chrome Tube Safety Bars
A simple, discreet barrier consisting of a polished chrome tube fixed horizontally across the window opening.
- Tested to BS 6180:2011
- Minimal visual impact
- Suitable for residential and apartment settings
- Designed to prevent falls while allowing ventilation
Ideal where a low profile safety solution is required.
Stainless Steel Barrier Systems
A more substantial guarding solution manufactured from stainless steel, available in:
Designed to comply with updated Part O Building Regulations, these systems are suitable for larger openings and higher-risk environments where full guarding protection is required.
Both systems are designed to prevent falls from windows that are less than 1100mm from floor level while maintaining airflow and natural light.
Design & Customisation
Design & Customisation
Window safety bars can be tailored to meet safety regulations, opening sizes, finish preferences, and functional requirements while ensuring compliance with updated building standards such as Part O.
Size and Height Options
900 mm and 1100 mm heights for stainless steel barrier systems to align with regulatory requirements for low level openings.
Made to measure widths to fit specific window openings precisely.
Bar Type and Style
- Single chrome tube bars for a minimalist and discreet appearance.
- Stainless steel safety barriers with multiple bars for more robust fall protection.
Fixed and removable configurations may also be offered, depending on product selection and ease of cleaning or maintenance.
Finish and Material Choice
- Chrome plated tube finish for a sleek internal look.
- Stainless steel (304 or 316) options for durability and corrosion resistance, especially useful in coastal or high-moisture environments.
Optional powder coated finishes in BS or RAL colours for custom aesthetics (additional cost).
Mounting and Installation Style
- Bars can be mounted across the window opening or within the window recess for a flush finish.
- Custom brackets and fixing kits available to suit different wall substrates (e.g., masonry, timber, plasterboard).
Optional Functional Features
- Removable options for maintenance access and window cleaning.
- Reinforced fixings to meet structural safety and load bearing requirements in compliance with BS 6180:2011, the relevant barrier design code.
These customisation options ensure window safety bars can be specified to suit both compliance requirements and architectural preferences, delivering effective fall protection without compromising design.
Applications
Applications
Window safety bars are installed where low level windows present a fall risk, particularly in residential and multi occupancy buildings. They provide compliant fall protection while maintaining ventilation and natural light.
Residential Homes
Used in:
- Ground floor windows with low internal cill heights
- First floor bedrooms
- Stairwell windows
- Split level living spaces
Common in family homes to reduce fall risk for young children.
Apartments & Multi Occupancy Buildings
Installed in:
- Apartment bedrooms
- Living rooms with low glazing
- Communal corridors
- Converted buildings
Often required to meet updated Part O Building Regulations for new build or refurbishment projects.
Schools & Educational Buildings
Fitted to:
- Classrooms
- Nurseries
- Dormitories
- Learning support rooms
Provides fall protection while allowing safe ventilation.
Healthcare & Care Facilities
Used in:
- Care homes
- Assisted living properties
- Hospitals
- Rehabilitation centres
Helps protect vulnerable occupants where window safety is critical
New Build & Refurbishment Projects
Specified where:
- Window openings are less than 1100mm from floor level
- Opening gaps exceed 100mm
- Compliance with Part O or BS 6180:2011 is required
Common in modern apartment developments and loft conversions.
Roof Windows & Loft Conversions
Installed on:
- Rooflights
- Velux style windows
- Loft conversion windows
Prevents falls where glazing extends close to floor level.
Window safety bars are therefore suitable for any environment where low-level glazing creates a fall risk and compliance with modern building regulations is required.
Features & Benefits
Features & Benefits
Window safety bars are designed to provide compliant fall protection at low level windows while maintaining ventilation and visibility. The key features focus on strength, durability, and regulatory compliance.
Fall Protection Barrier
Creates a physical guard across low level window openings.
- Prevents falls from windows less than 1100mm from floor level
- Limits opening gaps wider than 100mm
- Designed to align with Part O Building Regulations requirements.
Compliant Height Options
- Stainless steel barriers available in 900mm or 1100mm heights
- Suitable for residential and multi-occupancy buildings
Height selection depends on regulatory and risk requirements.
Structural Strength
- Chrome tube systems tested to BS 6180:2011
- Stainless steel barriers designed for load-bearing performance
- Secure mechanical fixing into structural substrate
Provides reliable long-term guarding performance.
Minimal Visual Impact
- Slim chrome tube design available
- Open bar construction maintains light and airflow
- Does not fully obstruct the window opening
Offers safety without creating a heavy or enclosed appearance.
Fixed Installation
- Permanently installed for consistent protection
- No moving parts
- Designed to withstand daily use and ventilation operation
- Durable Materials
- Chrome plated steel tube
- Stainless steel construction (corrosion resistant)
Suitable for internal environments and high humidity areas
Made to Measure Options
- Manufactured to suit specific window widths
- Suitable for standard and non standard openings
- Ensures accurate fit and structural integrity.
Window safety bars combine regulatory compliance, structural strength, and discreet design to provide effective fall protection without compromising ventilation or natural light.
Compliance & Safety
Compliance & Safety
Window safety bars must comply with relevant building regulations, guarding standards, and structural performance requirements to ensure safe fall protection at low-level windows.
Part O โ Building Regulations (England)
Under updated Approved Document O (Overheating & Window Safety), fall protection is required where:
- The window opening is less than 1100mm from finished floor level, and
- The clear opening could allow a 100mm sphere to pass through
Window safety bars provide a compliant guarding solution to prevent accidental falls while allowing ventilation.
BS 6180:2011 โ Barriers in and About Buildings
This British Standard sets out the structural design and load performance requirements for guarding systems.
- Single chrome tube systems tested to BS 6180:2011
- Defines required load resistance for domestic and commercial applications
- Ensures barrier strength under horizontal loading
Compliance confirms the barrier can withstand foreseeable impact and crowd loading.
Approved Document K โ Protection from Falling
Part K requires guarding where there is a risk of falling from height within buildings. Window safety bars contribute to compliance where glazing extends to low sill heights.
Multi Occupancy & Residential Standards
In apartment developments, HMOs, and care environments, guarding must:
- Prevent falls from accessible windows
- Be securely fixed to structural elements
- Not create climbable hazards
Structural Installation Requirements
To remain compliant:
- Bars must be fixed into structural substrate (not plasterboard alone)
- Fixings must meet load bearing requirements
- Installation must follow manufacturer guidance
Improper fixing can invalidate compliance.
Safety Considerations
Window safety bars must:
- Maintain safe ventilation
- Avoid sharp edges or protrusions
- Not obstruct required means of escape where applicable
- Life safety and regulatory compliance must take priority in specification.
When correctly specified and installed, window safety bars can meet Part O Building Regulations, BS 6180:2011 structural standards, and general fall-protection requirements, providing compliant and durable low-level window guarding.
Installation & Maintenance
Installation & Maintenance
Window safety bars must be installed correctly to ensure compliance with Part O Building Regulations and structural performance standards such as BS 6180:2011.
Installation Requirements
Structural Fixing
- Must be securely fixed into structural substrate (brick, block, concrete, or structural timber)
- Must not rely solely on plasterboard or non-load-bearing finishes
- Correct anchor type and fixing centres must be used
- Fixings must meet load requirements set out in BS 6180:2011
Improper fixing can compromise compliance and safety.
Height & Positioning
- Installed at the correct finished floor height (typically up to 1100mm)
- Gaps must not allow passage of a 100mm sphere where fall protection is required
- Bar or barrier must sit level and square
- Positioning must align with Part O and Part K requirements.
Integration with Window Operation
- Must not interfere with safe window operation
- Ventilation function must remain usable
- Any removable systems must be securely refitted after maintenance
- Life safety and escape considerations must always be confirmed.
Material Suitability
- Chrome tube systems installed in dry internal environments
- Stainless steel systems suitable for higher humidity or coastal areas
- Corrosion resistant fixings used where required
Supply Only Considerations
If supplied without installation:
- Installer assumes responsibility for structural suitability
- Installation must follow manufacturer fixing guidance
- Load bearing requirements under BS 6180:2011 must be achieved
Professional installation is recommended to ensure regulatory compliance.
Maintenance Requirements
Window safety bars are low maintenance due to their static design but should be inspected periodically.
Routine Inspection (Annually Recommended)
Check for:
- Secure fixings
- Movement or looseness
- Signs of corrosion
- Damage to chrome or stainless finish
- Structural integrity of brackets
Higher-use or public environments may require more frequent inspection.
Cleaning & Finish Care
- Clean chrome or stainless steel with appropriate non-abrasive cleaner
- Avoid harsh chemicals that may damage finish
- Touch up any minor coating damage (if powder-coated systems used)
Ongoing Compliance
To maintain compliance:
- Ensure no unauthorised modifications are made
- Confirm barrier height and gap spacing remain unchanged
- Replace damaged components promptly
When correctly installed and periodically inspected, window safety bars provide long-term, compliant fall protection while requiring minimal ongoing maintenance.
Price Guide
Price Guide
(Indicative UK pricing โ excludes VAT unless stated)
The cost of window safety bars depends on bar type, width of opening, height required (900mm or 1100mm), material finish, and installation conditions.
Single Chrome Tube Safety Bars(Tested to BS 6180:2011)
A discreet horizontal tube fitted across the window opening.
- Supply only: From ยฃ120 โ ยฃ250 per window
- Supplied and installed: From ยฃ250 โ ยฃ450 per window
Pricing based on typical domestic window widths up to approx. 1200mm.
Stainless Steel Barrier Systems(900mm or 1100mm Height โ Part O Compliant)
More substantial guarding system providing full fall protection.
900mm Height
- Supply only: From ยฃ280 โ ยฃ550 per opening
- Supplied and installed: From ยฃ500 โ ยฃ900 per opening
1100mm Height
- Supply only: From ยฃ350 โ ยฃ700 per opening
- Supplied and installed: From ยฃ600 โ ยฃ1,100 per opening
Higher cost reflects additional material and structural fixing requirements.
Larger or Commercial Installations
For wider openings or multi-unit projects:
- Installed from ยฃ700 โ ยฃ1,500+ per opening
Project pricing may reduce on volume orders.
What Affects Final Pricing
- Width of window opening
- Required height (900mm vs 1100mm)
- Chrome vs stainless steel finish
- Structural substrate condition
- Access and installation complexity
- Quantity ordered (multi-unit discounts may apply)
Getting an Accurate Quote
Window safety bars are made to measure and must be installed in accordance with Part O Building Regulations and BS 6180:2011 load requirements. Final pricing depends on exact dimensions and installation conditions. A site survey is recommended to confirm fixing suitability and compliance before issuing a final quotation.
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Frequently Asked Questions - Window Safety Bars
When are window safety bars required?
When are window safety bars required?
Window safety bars are typically required when a window opening is less than 1100mm from finished floor level and the opening could allow a 100mm sphere to pass through, in line with updated Part O Building Regulations. They are commonly specified in new build homes, apartments, loft conversions, and refurbishments.
Do window safety bars comply with building regulations?
Do window safety bars comply with building regulations?
Yes โ our single chrome tube systems are tested to BS 6180:2011, and our stainless steel barrier systems are designed to help meet Part O and Part K requirements for fall protection. Correct installation into a structural substrate is essential to maintain compliance.
Will window safety bars block ventilation?
Will window safety bars block ventilation?
No. Window safety bars are designed to allow the window to remain open for ventilation while preventing falls. They provide a protective barrier without fully obstructing airflow or natural light.
Are window safety bars removable?
Are window safety bars removable?
Some systems can be specified as removable for maintenance or cleaning purposes, but they must be securely refitted to maintain compliance. Fixed systems provide the most consistent long term protection.
Can window safety bars be fitted to any type of window?
Can window safety bars be fitted to any type of window?
In most cases, yes. They can be installed on standard casement windows, sliding windows, roof windows, and low level glazing. A site assessment may be required to confirm structural fixing suitability and regulatory compliance.

