Door entry and access control in St Albans, installed by electricians, not box-droppers.
A door entry system is only as good as its wiring. SEG installs and maintains communal door entry, video intercoms and fob access for blocks, offices and housing schemes.

Who it’s for
- Managing agents and housing providers with ageing or failing communal entry systems.
- Businesses wanting to control who enters and when.
- Developers fitting out new blocks.
What’s included
- Audio and video door entry for blocks, with handsets in each flat
- Fob, card and keypad access control, with audit trails
- Integration with cabling, containment and power supplies by our own team
- Reader and controller upgrades on existing systems
- Maintenance and call-out cover


How it works
We inspect the building, existing system and wiring.
We recommend a system and quote clearly.
Cabling, panels and handsets are installed and commissioned.
Maintenance and fob management.
Door entry & access control: the detail
Secure, Compliant Access Control for Homes, Flats & Commercial Buildings
What is a Door Entry System?
Door entry systems in St Albans and Hertfordshire are access control solutions installed at entry points of buildings to manage who can enter or exit. These systems are commonly used in residential flats, offices, and commercial properties to ensure only authorised individuals gain access to restricted areas. The systems typically consist of panels at the entry point and handsets inside the building, allowing residents or security personnel to control access.
Various types of entry panels are available, including keypads, intercom systems, and fob-based access systems. Each offers a different level of security and convenience, depending on the needs of the building and its residents.
Types of Panels Commonly Used in Door Entry Systems
There are several types of door entry systems in Hertfordshire to choose from, depending on your security needs:
- Keypad and Intercom Panels : A commonly used option, these panels allow visitors to dial a code or flat number to gain access. Residents can then speak with the visitor via the intercom and open the door remotely.
- Fob-Based Systems : This system includes a larger panel with a keypad and intercom functionality, as well as the option for residents to use key fobs to gain access. Fob-based systems are more convenient for residents, offering easy access without the need for remembering codes.
At SEGplc, we can recommend and install the most suitable door entry system in Hertfordshire based on your property’s requirements.
Why is a Door Entry System Important?
Door entry systems in Hertfordshire are vital for ensuring the safety and security of your property. They allow for controlled access, ensuring that only authorised individuals can enter the building. This is particularly important in residential buildings, where security is crucial for the safety of residents and to prevent vandalism or other criminal activities.
A door entry system can only be activated using a code or a key fob, which ensures that only residents have access. Residents can also grant access to guests remotely via their handset, providing an extra layer of security and control.
What Exactly is a Handset?
A handset is a phone unit installed in each flat or apartment, usually near the front door. It allows residents to receive calls from visitors who are trying to gain access to the building via the door entry system. The handset includes a button that residents can press to grant access to the visitor, ensuring a secure and controlled entry process.
Each household will need to have a handset installed, and our team ensures that it is set up to meet the specific needs of each resident. Door entry systems in Hertfordshire provide peace of mind by giving residents full control over who enters their property.
Door Entry Systems at The Specialist Electrical Group Ltd
At SEGplc, we specialise in installing door entry systems in Hertfordshire for a variety of properties, from residential blocks to commercial buildings. Our installations contribute to the safety and security of residents, allowing them to feel secure in their homes and offices. We have worked on several projects, including collaborations with Mullaly & Co to install door entry systems in residential blocks in Stevenage and Enfield.
Once your door entry system in Hertfordshire is installed, we will arrange an appointment with each resident to complete the handset installation. Our team works efficiently to ensure minimal disruption to residents while providing top-quality installations. We continue to expand our services and are looking forward to completing more door entry installations across Hertfordshire.
Why Choose SEGplc for Your Door Entry Systems in Hertfordshire?
For over 20 years, SEGplc has been providing reliable and professional electrical services with a personal, customer-focused approach. Whether you need a door entry system in Hertfordshire for a home, office, or commercial property, our team offers tailored solutions to meet your specific security needs.
We are fully certified by NICEIC, CHAS, MCS, SafeContractor, and TrustMark, ensuring that every system we install meets the highest industry standards for safety and performance. As a trusted local business, SEGplc takes great pride in supporting the community and building long-term relationships with our clients across Hertfordshire.
Book Your Door Entry System Installation in Hertfordshire Today
Ensure the safety and security of your property with a door entry system in Hertfordshire from SEGplc. Contact us today to get a free, no-obligation quote and find out how our expert team can enhance your building’s security.
Call 0345 3 822 833 or enquire online to get a quote or book your installation.
Door entry and access control in St Albans
From our base at SEG House in Chiswell Green, St Albans, we install, upgrade and repair door entry and access control across St Albans and Hertfordshire: communal entry for blocks of flats, video intercoms for homes, and fob, card and keypad access for offices, schools and shared buildings.
Access control for offices and shared buildings
- Fob, card and keypad readers on one door or a whole building
- Mobile and cloud access, so you can add or remove users without visiting site
- Audit trails showing who opened which door and when
- Fire alarm interface, so doors on escape routes release when the alarm sounds
- Locks, exit buttons, power supplies and cabling, installed and certified by our own electricians
For cloud-managed Verkada access control alongside CCTV, we work with our sister company SEGcore. See CCTV.
Where we provide this
SEG’s head office and van base is in Chiswell Green, St Albans. We provide this service for homes and businesses across Hertfordshire, Bedfordshire, Buckinghamshire and North and West London, with the closest and most frequent work around St Albans, Harpenden, Hemel Hempstead and Watford.
Questions we’re asked
Can you upgrade an existing system?
Often. Depending on the age and manufacturer, we can replace panels and handsets while reusing cabling.
Can residents get replacement fobs?
Yes. We can set up a managed process with your agent.
Do you also do CCTV?
Yes, through our sister company SEGcore.
Can you fit access control to a single office door?
Yes. A single door with a fob or keypad reader, a lock, an exit button and a power supply is a common job. We can add more doors later from the same controller.
Do you install door entry and access control in St Albans?
Yes. We are based at SEG House in Chiswell Green, St Albans, and install and maintain door entry and access control across St Albans, Harpenden, Hemel Hempstead, Watford and the rest of Hertfordshire.
Will access-controlled doors release in a fire?
They must, where they are on an escape route. We wire access-controlled doors to release on loss of power and, where there is a fire alarm, to release when it activates, and we test that at handover.
Need it done by a date?
Tell us the deadline. We’ll tell you honestly whether we can hit it — and we usually can.

