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Collapsible Gates
Discreet security for all commercial and residential..

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Roller Shutters
Protect your building's weak points with our quality roller..

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Security Doors
Strongfix security steel doors and frames offer..

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Security Grilles
Your windows are your building's weakest point..

Security Grilles

Grilles and Gates Brochure

Window Grilles

Robust and expertly installed security grilles will give you the peace of mind of knowing that your home, family or business is in safe hands.

No matter if you’re in a commercial or domestic property, guarding the safety of all inhabitants, valuables and priceless assets is of paramount importance. Security grilles are among the best forms of protection to install in any environment, especially in busy town centres and built up urban areas.


Enhanced protection

The strength of our bar grilles, security mesh grilles and bar grille doors ensures that your property is comprehensively protected against vandalism, criminal damage, intrusion and theft.


The ultimate visual deterrent

Security grilles, applied to both doors and windows, are remarkably effective in discouraging would-be thieves, intruders, vandals or trespassers. Not only is the design specification of all of our security grilles hugely robust, it is also a permanent fixture that is less likely to be targeted or undermined.


Expert installations based on years of industry leading experience

Our track record is excellent, as we have helped several clients – commercial as well as residential – in a huge range of security-related tools and applications.

As well as investing in the best possible security systems, the expertise of time-served installers will save you the long term hassle and costs incurred by incorrect or inexperienced fitting.


Officially accredited, surpassing national standards

Our strict health & safety standards, as well as those relating to professional installation practices, are reinforced by official accreditation from the leading certification body in Britain, the United Kingdom Accreditation Service (UKAS). We consistently surpass the national standards of security installation laid out by the Safe Contractor Approved Scheme (SCAS) and are acknowledged under the crime reductive ‘Secured by Design’ scheme, which both UK Police and major insurance companies endorse nationally.


We also supply and install all of our our security products to CE 1522, CE 1627 and LPS 1175 standards.

If you are worried about a lack of security on your premises, expertly installed security grilles will provide you with peace of mind. Speak to our friendly and knowledgeable security team to satisfy any queries or specific requirements you may have.

From our main offices in Banstead and Central London, our friendly and experienced engineers conduct professional security grille installation, inspection, advice and assistance for customers throughout the London boroughs and Home Counties.


Costello Security Installers are specialist suppliers and manufacturers of security grilles, steel doors, roller shutters and security doors of the highest quality. For more information about our service please contact us today.

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