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Controlling Corrosion

CPT design and supply leading edge corrosion solutions for reinforced concrete structures. Manufactured in the UK, our unique products include the popular PatchGuard and DuoGuard systems for cathodic corrosion protection.

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DuoGuard™ Hybrid Anodes

DuoGuard Hybrid anodes can be used to protect against the corrosion of traditional steel reinforcement, pre-stressed and post tensioned concrete reinforcing elements without the need to break out sound concrete.

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Welcome to Concrete Preservation Technologies

At CPT we are proud to design and manufacture cutting edge corrosion control solutions for reinforced concrete structures and masonry encased steel framed buildings. From our UK base we manufacture and distribute our unique DuoGuard and PatchGuard systems worldwide.

If you manage or own a structure suffering from corrosion related cracking and spalling we would be delighted to hear from you. Our corrosion experts are on hand to assist you with concrete testing, specification preparation and supply of corrosion control materials. Our aim is always to extend structural life and minimise maintenance costs.

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We produce products which represent the latest technologies for reinforced concrete corrosion repair. Manufactured in the UK to ISO 9001 and ISO 14001, our innovative and proven products include the DuoGuard™ Hybrid anode and PatchGuard™ galvanic anode.


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Following initial assessment CPT’s BS 15257 level 4 qualified staff can design an efficient, cost-effective corrosion mitigation solution for your structure. We design a range of cathodic protection systems— from simple sacrificial anode designs to full ISO Standard EN12696: 2022.


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CPT offer a range of physical assessment services for reinforced concrete structures. We undertake testing of structures, analyse and evaluate the data obtained on site and provide a rapid appraisal of the extent of corrosion and possible mechanism.


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Learn from the industry experts about the causes of corrosion, survey techniques and the latest technological advances in corrosion control. CPT are pleased to offer a choice of one hour CPD seminars held at your premises.


Contact one of our specialists today for more information on any of our products or services.

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Worldwide Clients

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Latest News

25th Oct 2023

CPA Project of the Year Winners (RAAC)

Concrete Preservation Technologies Ltd is the proud recipient of the 2023 Project of the Year award for our work on RAAC panel corrosion investigation and management for the NHS. CPT …

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18th Sep 2023

RAAC in Schools – Nature asks CPT’s technical consultant Christian Stone ‘Why is concrete crumbling?’

More than 100 schools and public buildings in the United Kingdom are facing closure because of reinforced autoclaved aerated concrete (RAAC), a building material used extensively throughout the country and …

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15th Sep 2023

(Video) RAAC Expert answers frequently asked questions

During the last few weeks many misunderstandings and questions have been raised to us and in media. Bringing together some of the most common questions we have created a little …

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