Helping you relax in your home or business.


Expert installation of burglar alarms in Hertfordshire.

At 3rd Century Ltd we install intruder alarms for a range of clients from residential, small shops to offices and large commercial properties.

We're happy to advise on which alarm would be best for you and your requirements. So no matter the size of the project you know you'll always get the highest quality finish.

We can visit your property to discuss what options are available, so you can choose the best intruder alarm for your property.

We have burglar alarms that can:

  • Be fully monitored with police response

  • Be fully controlled via smartphone APP

  • Have wireless solutions

  • Keyholding service