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Burglar Bars

Horizontal Burglar Bars

19mm steel bars on 25 x 12mm side supports, embedded 50mm into the brickwork. A clean horizontal line across the window rather than a cage over it.

Horizontal burglar bars are steel bars fitted across a window in horizontal lines, embedded into the brickwork rather than screwed to the frame. DEFENDoor® makes them from 19mm steel reinforced with 25 x 12mm side steel supports, custom-made to the window and powder-coated to match the frames they sit against.

The strength is in the fixing as much as in the bar. These are embedded 50mm into the brickwork, so each bar is anchored in the wall itself. A bar screwed to a frame is only as strong as that frame, which can be prised, cut, or removed with the bars still attached. Embedding into brickwork takes the frame out of the equation.

The 25 x 12mm side steel supports are what keep the run rigid. Without proper side supports, horizontal bars flex when they are levered, and that flex is what eventually opens a gap. The supports carry the load across the whole opening and give the finish its neat, squared line.

Horizontal is the plainer of the two steel profiles we make. It features a set of clean lines rather than a pattern, which suits modern frames and commercial premises. Because the powder coating can be colour matched, bars in the same colour as the window frame all but disappear from a distance.

Horizontal burglar bars, fitted to a window.
Steel horizontal bars
19mm
Embedded into brickwork
50mm
Guarantee on the range
18 months

What you get

  • 19mm steel bars

    The horizontal bars are 19mm steel throughout, the same gauge as the uprights on our trellis gates, and heavy enough that cutting one is a slow and noisy job.

  • 25 x 12mm side supports

    Side steel supports at 25 x 12mm carry the load across the opening and stop the run flexing when it is levered. They also give the installation its neat, squared finish.

  • Embedded 50mm into brickwork

    The bars go into the wall, not into the window frame. 50mm of brickwork holds each bar, so an attack on the frame does not take the bars with it.

  • Powder-coated and colour matched

    A powder-coated finish carries the durability and weather resistance, colour matched to your existing window frames or bars so the installation reads as part of the building.

  • Made to any window size

    Custom-made to the measured opening rather than cut down from a stock panel, so the bars fit the window they were made for, residential or commercial.

  • Payment terms available

    You can pay over up to 24 months through FeverTree, so a whole house of windows need not be done one at a time.

Models and specifications

Custom-made to the opening. What changes from job to job is the size and the colour, not the specification.

Horizontal Burglar Bars

Horizontal bars
19mm steel
Side supports
25 x 12mm side steel supports
Fixing
Embedded 50mm into the brickwork
Rust protection
Treated for rust resistance
Finish
Powder-coated, and can be colour matched to existing frames or bars
Sizing
Custom-made to fit any window size
Suitable for
Residential and commercial properties
Guarantee
18 months

Fixed and swing-away units are both available: swing-away where a window doubles as an escape route, or where you need the opening clear for ventilation. Bar spacing and maximum spans are confirmed at the free on-site assessment.

Gallery

Horizontal bars fitted to residential and commercial windows.

Colours

The standard DEFENDoor® powder-coat range, with colour matching to your existing frames available on request.

  • Silver
  • Chocolate Brown
  • White
  • Bronze
  • Anthracite Grey
  • Black

Custom colours available on request.

Colours shown here are a guide. Powder coating looks different in daylight than on a screen, so ask for a physical sample before you decide.

  • Durable
  • Timeless
  • Beautifully finished
  • Built to protect

Frequently asked questions

What are horizontal burglar bars made of?
Horizontal burglar bars are made from 19mm steel, reinforced with 25 x 12mm side steel supports. Everything is treated for rust resistance and finished with a powder coating, which lets the bars stand up to weather and to coastal or humid conditions.
How are the bars fixed to the window?
Horizontal burglar bars are not fixed to the window at all. Each bar is embedded 50mm into the brickwork, so it is anchored in the wall rather than in a frame. A bar screwed to a window frame is only as strong as that frame, and embedding into brickwork takes the frame out of the equation.
Can the bars be made to fit my windows?
Yes. Horizontal bars are custom-made to fit any window size, and we measure the opening on site at the free assessment rather than estimating it. That is also when spacing and configuration are agreed.
Can I still open the window, or get out in an emergency?
Both fixed and swing-away units are available. Swing-away units suit a window that doubles as an escape route, or one you want to open fully for ventilation, and fixed units suit windows where neither applies. It is worth deciding this room by room at the assessment.
Will the bars rust?
Horizontal burglar bars are treated for rust resistance and finished with a high-quality powder coating, which is what suits them to coastal regions and humid areas. The coating also keeps the surface smooth and easy to clean.
How do I maintain them?
Horizontal burglar bars need very little upkeep. Wipe them regularly with a damp cloth to clear dust and debris, and use mild detergent and water for tougher grime. Avoid abrasive cleaners, which damage the powder-coated finish.
How long is the guarantee on horizontal burglar bars?
Horizontal burglar bars carry an eighteen-month guarantee.
Can I pay burglar bars off over time?
Yes. You can pay any DEFENDoor® order off over a term of up to 24 months through our finance partner, FeverTree.

Get a quote for horizontal burglar bars

Tell us about the opening, and we will come out, measure, and quote. The assessment is free, nationwide.

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Send us the details and we will get back to you within one business day.

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