Tension springs run along the track on either side of the door and stretch as it closes. It is the older setup, largely replaced by torsion on new installations, but plenty of doors around the country still run it and we still carry the full range.
| Variant | Specification | Code or colour |
|---|---|---|
| 45 kg | Lightest of the four | Yellow tip |
| 55 kg | Next weight up | Blue tip |
| 65 kg | Mid weight | Green tip |
| 75 kg | Heaviest | White tip |
The tip colour tells you the weight rating. Springs are matched to the weight of the door, so the door is weighed before we quote. Replaced in pairs so both sides carry the same load.
Our technicians carry spares on the vehicle and work on every make of door, not only our own. Book a callout at your nearest branch.
