Lenz Security

We're dedicated. Your safety. Our Hands

86 Lenz Close, Colchester, CO1 2FP Directions

   Open 24 Hours

Business overview

Complete security solution for home and commercial properties covering Essex, Suffolk, London and surrounding areas. Burglar Alarms, CCTV, Access Control, Safes, AV installations.

Our family business specialises in every sector of security equipment and installation, from Alarm Systems, CCTV, Safes, Access Control and even Data Cabling and Audio Visual Installs.

With over 15 years of experience, our customer service stands up above competitors due to our 18 month guarantee on all installs. You can trust our team of NSI certified engineers to offer you the best experience to the highest standard at competitive prices.

Lenz security is available 24 hours a day to give you peace of mind should the worst happen, with a 50 mile radius of our base in Colchester, Essex.

A certified alarm system supplied and installed with an 18month warranty, 24hour callout and certificate from only £449

To supply a new lock prices start from only £50

You just can't put a price on protecting your home or business so call us for a free quotation or site visit to secure your property quickly.


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Burglar alarm installed and maintained 24 hours a day Colchester
Secure your home with an alarm system in Essex
Burglar alarms, intruder alarms, cctv systems, safes, network cabling in Essex
Guaranteed security alarms fitted Essex
NSI certified engineers for all your security needs Colchester
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Products & Services

access control

alarm installation

alarm maintenance

alarm systems

access consultants & products


cctv installers

entry systems

estate security

home security

industrial security

intercom systems

office security

safes & vaults

security companies

security services & equipment

Burglar Alarms

Home Alarms

Commercial Alarms

Audio Visual Installation

Data Cabling Installation

Data Cabling



  • Security Systems and Alarms Inspection Board (ESSX231)



I got a few firms to tender for my alarm system but Lenz was the only one which had a setup which met all my needs - flexible, enough to cover an unusually large domestic bungalow. Andrew installed it professionally and efficiently and even came back a few weeks later to refit a contact when a door was replaced. Extremely helpful, everything where we wanted it placed, and so far all working well. Unhesitatingly recommend this company.
07 Jun 2021
Thanks Roger - Very happy to help.
07 Jun 2021
Thanks Roger - Very happy to help.
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Top quality and very professional Installation of alarm system

On time, great price, courteous, knowledgeable and an all round professional outfit.

If you are looking for a premium service then really do not look any further than Lenz Security. No hard sell, always want what's best for the customer and can be assured that the system you have fitted is the right one for you.

Dont hesitate in using them, we didn't and we are glad we went with them.

Keep it up chaps 👍
07 Jun 2021
Thanks Mark. Was our absolute pleasure. Thanks for all the tea too 👍🏽
07 Jun 2021
Thanks Mark. Was our absolute pleasure. Thanks for all the tea too 👍🏽
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Excellent installation. Highly recommended.

Excellent installation. Andrew visited, listened to what we wanted, gave a competitive quote then installed it with minimum fuss. No mess at all. Works very well and we are very happy with the system and the way it was done. We would certainly recommend Lenz highly.
24 Aug 2019
Many thanks Andrew for your kind words. Hope to hear from you soon. Lenz Security
24 Aug 2019
Many thanks Andrew for your kind words. Hope to hear from you soon. Lenz Security
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A top quality company.

I had a security system fitted by Lenz Security about 9 months ago. We had 3 companies quote us for this domestic installation; all seemed to be good quality systems but the Lenz system impressed us the most, not least because they seemed the most realistic.

We have not been disappointed. The installation was carried out smoothly and without requiring any remedial decoration. The system works as it should. We subsequently requested some modifications to the functioning of the system and these were implemented very quickly.

We recently had a problem with the internet here following a power cut. The response to our request was immediate and full functionality restored within 2 days. It would have been the next day but we were busy!

In short this is a most impressive company providing a quality system and outstanding support. I would recommend them to anyone requiring a burglar alarm.
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LENZ SECURITY The best in the business

Totally professional, speedy, efficient, use best equipment in the business, nothing is too much trouble.
Totally customer centred, and firmly focussed on making your property as secure as is feasibly possible.
System really easy to operate, unlimited options, from very simple to complicated.
Can be controlled manually, or by phone from anywhere in the World.
Follow up service 1st class.
Price extremely reasonable, considering the quality of the equipment and service.
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