An effective door entry system provides the perfect security solution for flats with a shared stairwell or properties that share a common access gate. Homeowners and landlords should consider an entry system to provide an extra layer of security for tenants.


If you’re flat-hunting for a secure property, or investing in a new door entry system, there is quite the range of options to look out for, both audio and video entry systems, and security advantages to both.

How do entry systems work?

Intercoms and video entry systems facilitate greater control over home security, enabling residents to identify visitors with audio or video verification without having to leave their private property or even open their door. This is particularly useful in large buildings where individual flats are a long way from the front entrance. Once the identity of a visitor has been established, entry systems give residents the option to grant access to their building using an electric door release mechanism.

Installing an effective entry system is not only important for tenants’ peace of mind, but for landlords and property owners too. A survey by Populus showed that 37% of home buyers would lose interest in purchasing a property, or retract their offer, if they thought it was at risk of burglary due to poor security. Consequently, a door entry system makes for a profitable long-term investment.

Audio entry systems for flats

When a visitor comes to your building, a two-way audio intercom enables you to converse with and identify them before allowing them into your home. Traditional intercom technology works on an analogue frequency, connecting an audio system at the front access door with a dedicated entry handset within the property to communicate with a guest and ‘buzz them in’.

With telephone integration, a dedicated handset is no longer required, as the call panel at the main gate or door can be connected to a telephone line or switchboard and ‘dial in’ through a flat’s landline. In a business environment, this is particularly suited for diverting to multiple extensions, allowing anyone to take charge of entry.

It’s the same idea that makes audio entry systems particularly suited to large properties or multiple flat blocks: it’s very easily scalable. Because the system is relatively simple, it is easier to install and also less subject to faults.

If a landline is unavailable, a GSM system can connect an audio entry system to a mobile phone for complete flexibility both inside and outside the home. With IP integration, a door entry system that works via an internet connection means distance is never a factor. Both these solutions are wireless door entry systems.

Video entry systems for flats

The added security benefit that comes with installing a video entry system, rather than an audio entry system, is that it allows a resident to visually identify anyone trying to access their property. A visual display of your visitor makes identification easier than simple voice recognition, and means a resident can ask to see a service person’s ID badge or credentials without needing to open the door. Thus, video entry systems offer greater control.

A video entry system can also double up as a CCTV system, recording a visual feed of anyone coming and going into and past your building. This can have beneficial security applications in the event a crime or break in is committed.

Modern technology allows the video feed from your door entry system to be streamed directly to a TV, mobile phone or tablet, allowing residents to identify and choose whether to admit entry to a visitor from the couch, bath—even if they’re out of the house.

There are even bell door entry systems available for main-door properties, that stream a video feed of a house caller to an in-house display or mobile phone and allow for two-way communication without opening the door.

Audio or video entry systems. Which is better?

It’s easier to see how a video entry system might be considered the better option, given that it does everything an audio entry system does, and more. But there are advantages to both audio entry systems and video entry systems.

Audio entry systems are usually the cheaper option of the two, as the tech isn’t quite so advanced. It doesn’t require a monitor display to be installed inside the property, meaning it is typically more discreet. Because of the amount of data that a video entry system needs to transmit, they can also sometimes be subject to a slight lag, especially when a lot of properties share one video entry system.

Overall, it depends not only on the property, but on the needs of the people who live there. Landlords are obligated to install a door entry system that fits the requirements of their tenants. That means that if a tenant has a hearing impairment, a video door entry system will be required for their needs. For a tenant with a visual impairment, by contrast, an audio entry system is more suitable.

Whether you are looking for a video entry or audio entry system for your property, Security 201 offers both solutions with state of the art technology, implementation and a designer finish to meet all your needs.