Henderson Electric Garage Door Operators

Henderson have sold various types of garage door operator over the years, including the very popular Sprint, Marathon and Duo (still available). The last models sold in the UK by Henderson were the Ultra, Ultra S and the Ultra Excellent. They were sold in conjunction with the G60 sectional door. Please note that they are no longer available. Spare parts and handsets for these are also not available. If you require handsets for the Ultra range of motors or any other type of motor with a wired bellpush, the product kit below can be purchased as a cheaper alternative to buying a whole new motor kit complete. Also very easy to DIY install.

Sommer conversion socket receiver with handset

This unit allows working electric operators to be activated by new remote control handsets. Kit includes

  1. UK 3 pin plug-in module with built-in push button

  2. Bell wire (pre-wired) to connect module into the two bell wire terminals on your existing ceiling mounted motor unit. 24 volt, so safe for DIY installation

  3. High quality Sommer handset. Extras available at additional cost.

Picture of Sommer Conversion Receiver Picture of Sommer 4-button handset


Picture shows plug-in receiver module and handset kit complete

  1. Henderson (Sommer) Sprint Evolution, formerly the Sprint 550SL

Picture of Sommer Sprint automation kit


The unit has a static chain along which the motor travels. Quiet operation with easy disengage in the event of a power cut. Self locking. Integral courtesy light. Soft start / soft stop ensures near silent opening and closing of your garage door. Rolling code extra secure radio control system. Extra safe auto reverse obstacle detector system, fully compliant on all leading brands of door including Hormann, Garador, Novoferm, Ryterna etc. Includes 2 hand transmitters and wall control switch.


  1. Henderson (Sommer) Duo electric garage door operator

Picture of Sommer Duo automation kit and control box Picture showing installed Sommer Duo Picture of Sommer Duo control box
Sommer Duo with separate wall mounted control panel, switch and light Neat ceiling mounted rail with static chain Wall mounted control box with light and control switch


All the main features as for the Sprint model shown above, but with a wall mounted control box. Ideal for DIY installation and plugging into an available 13 amp socket, avoiding the need to have an electrician to install an electric supply onto the ceiling of the garage.

  1. Henderson (Sommer) Marathon SL

Picture of Sommer Marathon automation kit

A premium grade operator for top end domestic & commercial applications. High performance motor, power saving transformers and numerous intelligent features for years of safe and reliable operation. 550 Newton, 800 Newton and 1100 Newton versions available.


  1. Henderson (Sommer) Aperto

Picture of Sommer Aperto automation kit

The Henderson (Sommer) Aperto is a low cost DIY kit, ideal for single and double doors. A thinner gauge of steel in the rail make it less rigid than the high quality and sturdy Duo, Sprint and Marathon. Comes with 2 handsets, as usual, and available in 550N and 800N models.