Automatic Doors maintenance
Automatic Doors Maintenance
Automatic Doors maintenance: We install and service automatic door systems across a variety of styles, including sliding, bi-folding, swing, balanced, and telescopic doors. Our team also offers comprehensive maintenance and repair services to keep your doors operating reliably and safely.
These door systems enhance accessibility and help ensure your building remains compliant with DDA regulations. With regular servicing, you can reduce the risk of unexpected faults, improve day-to-day reliability, and extend the life of your doors.
If you already have swing doors in place, we can convert them into automatic systems without the need to replace the entire unit. This is a smart, cost-effective way to modernise your entrance and improve accessibility for all users.
All of our automatic door engineers are EN 16005 certified, so you can be confident in the safe, professional installation and servicing of your system.
See how swing door operators can hold up to the wind
Swing Door Operators
A ‘swing door operator’ is a device that operates a swing door for pedestrian use. It opens or helps open the door automatically, waits, then closes it.
There are 3 basic types of swing door operators:
- Full Energy – It opens and closes the door at full speed. Full Energy operators are typically used on the outside doors of medium sized retail businesses. (Larger retail businesses prefer sliding door operators.)
- Low Energy – It opens and closes the door at reduced speed, in order to limit the kinetic energy of the moving door to levels deemed safe for disabled users. Low energy operators are typically used where a simple door closer is sufficient for abled users, yet it is necessary to add access to disabled users: small businesses, apartments, bathrooms.
- Power Assist – This is a version of the Low Energy operator. It doesn’t open the door; instead, it lets the user open the door manually at a reduced force, compared to opening against a standard door closer. It closes the door with the same speed limitations as a Low Energy operator.
A door operator may be triggered in various ways:
- Approach Sensor (such as a radar sensor) – the door opens when a user approaches it.
- Push Button – the door opens when a user presses a button.
- Access Control – the door opens when the access control system determines the user is authorised to go through.
A trigger from any of the above requests prompts the door to open or reopen if it is closing. However, the operator will only respond to that request after ensuring it is safe for other users in the area.
To enhance safety, a door operator may utilise sensors that prevent the door from coming into contact with a user. Additionally, full energy operators require safety sensors to ensure a safe environment. Conversely, low energy operators do not need safety sensors, as these doors are allowed to come into contact with users. However, the kinetic energy of the moving door is limited by a reduced speed to ensure safety.
Moreover, we maintain and install major brands such as Dorma, Geze, Doromatic, Entrematic, Horton, Tormax, Record, Stanley, Besam, Kaba, Assa Abloy, Ditec, Came, Faac, Erreka, Manusa, and Blasi.
View samples of our swing door operators below:
Sliding Door Operator
A sliding door operator is a device that automatically operates a sliding door for pedestrian use. It opens the door automatically, waits, then closes it, ensuring ease of access without manual effort.
Sliding door operators are typically used on the outside doors of large retail businesses, while smaller retail businesses tend to prefer swing door operators. Both systems offer enhanced accessibility and convenience.
We also offer automatic sliding door repairs and maintenance services to ensure your system continues to operate smoothly and safely, minimising the risk of breakdowns and ensuring long-term reliability.

A sliding door operator can be triggered in the same ways as a swing door operator. For instance, it will reopen if the door comes into contact with an obstacle. Additionally, most automatic door operators utilise sensors to prevent the door from coming into contact with users in the first place, ensuring safety. The operator is typically positioned above the sliding door, guaranteeing smooth and efficient operation.
We also provide maintenance and installation services for major brands such as Dorma, Geze, Doromatic, Tormax, Horton, Entrematic, Record, Stanley, Besam, Kaba, Assa Abloy, Ditec, Came, Faac, Erreka, Manusa, and Blasi. If you need assistance with any other brand of automatic doors, please don’t hesitate to contact us. We are here to help with all automatic door repairs, maintenance, and related issues.
View samples of our sliding door operators below:

Retro-Fit Kits
Many premises with older automatic sliding door equipment may find it difficult to source replacement spare parts. If this is the case, our “Retro-Fit Kit” makes it possible to improve and upgrade your existing automatic door installation, regardless of make and model, ensuring it continues to operate efficiently and safely with minimal downtime.
Automatic Doors maintenance: The existing track and cover are retained, and with a typical conversion time of around 4 hours or less, including wiring and setup, the “Retro-Fit Kit” can significantly reduce the time and inconvenience that would be caused if replacing old with new.
All of our “Retro-FiKits” combine robust engineering and high-tech electronics, resulting in a aheavy-dutyy sliding operator.
For further information about our “Retro-Fit Kits”, please feel free to contact us.
Areas We Cover...
- Chelmsford
- Colchester
- London
- Norwich
- Peterborough
- Romford
- Southend
- Suffolk
- And many more across East Anglia and the South East
From automatic doors in Norwich to repairs in Romford, we’re here to help. If you’re unsure whether we cover your area, just get in touch – we’d be happy to assist.
Interested in Finding Out More About Automatic Doors maintenance?
Visitors By Appointment Only
Head Office
Supreme Doors Ltd
Saxon House
27 Duke Street
Chelmsford
Essex
CM1 1HT