Fixed Security Grilles

ILFORD Fixed Grille

ILFORD Fixed Grille [FG25]

Standard Range

HEATHROW Fixed Grille

HEATHROW Fixed Grille [FG23]

Standard Range

HAYES Fixed Grille

HAYES Fixed Grille [FG22]

Standard Range

TOTTENHAM Fixed Grille [FG1]

Standard Range

REGENT’S PARK Fixed Grille [FG2]

Standard Range

FULHAM Fixed Grille [FG3]

Standard Range

EASTCOTE Fixed Grille [FG4]

Standard Range

CRICKLEWOOD Fixed Grille [FG5]

Standard Range

WEMBLEY Fixed Grille [FG6]

Standard Range

HENDON Fixed Grille [FG7]

Standard Range

EDGWARE Fixed Grille [FG8]

Standard Range

KINGSBURY Fixed Grille [FG9]

Standard Range

Internal Fixed Security Grilles

Looking for security grilles for house windows? Or perhaps you’re looking for commercial security grilles. Whatever the case, we supply an extensive range of fixed security grilles in and around London.

KP Engineering can install and deliver to premises across London and the home counties and provide excellent office and home security grills to deter intruders, whether your building is occupied or empty. Our products can be fitted internally or externally, and as well as securing your premises, security shutters provide good insulation, ventilation and sound-proofing.

What Are Internal Fixed Security Grilles?

Beat the burglars with our internal security fixed grilles products, which are ideal for windows and doors. They’re manufactured for use as internal security grilles for use in medium to high-security applications for domestic, commercial and industrial purposes.

The bars are constructed from top-quality wrought iron metal and come powder coated as standard.

Common in numerous applications, our security grilles are made here in the UK and typically fitted on the inside of windows – perfect if you’re looking for bespoke, decorative door and window grilles.

Designed to protect both your home and working premises, window security bars – otherwise known as widow burglar bars or window grill inserts – are recognised, tested, certified and approved by insurance companies.

Why Use Internal Security Grilles?

What with the unfortunate acts of crime and vandalism on the up, now’s as good a time as ever to install quality security grills without compromising on aesthetic appeal. With their discreet, stylish designs, these mechanisms provide a physical deterrent for intruders and burglars, offering a good alternative to a burglar alarm which only sounds and alerts once a forced entry has already been made.

While there are other ways of being able to protect windows, internal fixed security grilles don’t lose their visual appeal, sporting inconspicuous and chic designs whether open or closed. They’re a popular choice alongside external fixed security gates and collapsible security grilles.

These safety applications are an efficient, unassuming way to safeguard your premises. Even better, they’re effortless to look after, even simpler to operate and can provide high levels of security all while looking great as well – there’s not a lot else you could get from a physical security product!

No matter what security solution you need, rest assured that our grilles are manufactured to the highest standards. Each product is stock tested in our factory before it’s shipped out to you and our reliable team can arrange fast installations in London and the home counties.

Quality Security Products from KP Engineering

We also supply external and collapsible grilles alongside numerous other products, including metal railingsiron fencingwall top railingssliding gatesLondon style railings and much more.

Fixed Security Grilles Gallery

Our Metalwork Your Way!

All of our products can be customised to meet your requirements.

Our infill bars can be made from hollow or solid bars. Their profile can also be round or square. Our railheads can be swapped with another type from a wide range of styles and we can even manufacture our products with or without railheads. Each products can be made with or without an arched top. When requesting a quotation please let us know if you have any preferences and we’ll be happy to help.

Google Reviews


I was very fortunate to find and use KP Engineering to design, make and fit some balustrades and a handrail to some steps that I have which seperate the top part of my garden from the bottom. Contact was extremely easy and the whole job was managed with ease by Ketan. The measurements were exact and included the curvature of the two top balustrades. The fitting was also managed extremely efficiently and the guys who did the work were extremely polite, tidy and despite the rain completed the work quickly. I couldn't be more delighted with the end result. I wasn't aware that my garden could be improved so much with the addition of the railings. Overall, I have no hesitation in saying that this Company does what it says, on time, efficiently and with a great design team as well.

Juliet Lysons Avatar Juliet Lysons
June 3, 2024

Fantastic service and product. KP have just manufactured and installed a gate to basement level, in keeping with my existing railings. Seamless process from survey through design to installation

Janina Rutherford Avatar Janina Rutherford
May 17, 2024

Great company! Good organised and very professional. Mr Ketan’s communication and updates very professional and final product is very high quality! Highly recommend company! 5 starts ⭐️⭐️⭐️⭐️⭐️

Vlad Sorge Avatar Vlad Sorge
April 12, 2024

KP Engineering Works Ltd were a pleasure to work with from the outset through to completion. They spent good time ensuring the measurements were perfect, and kept us up to date with each element of the design, build and installation. The product looks great and it really is built to a high quality, with high quality fixings mounting to the wall. I highly recommend working with the KP Engineering team.

Christopher Rigg Avatar Christopher Rigg
March 1, 2024

Excellent service and communication from start to finish. Ketan was great to deal with, and both the surveyor and installation team were very professional. Would highly recommend.

Chris Burns Avatar Chris Burns
January 18, 2024

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Our workshop will be closed during the festive period from midday 22 December 2023 and we will reopen on Tuesday 2 January 2024. During the festive period there may be delays in our response. Wishing all our customers a very Merry Christmas & Happy New Year!

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We cover Greater London & the Home Counties, and specialise in offering a Supply & Fit service.


Click here to read more about our Finishing Options



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