Replacement of the torsion springs on an existing sectional garage door: securing the door, work on the balancing mechanism at the top of the opening, removal of the shaft and springs, preparation of the new set, refitting, tension adjustment, then opening and closing tests.
Shasama Fermetures worked on a garage sectional door in Saint-Maur-des-Fossés to replace its torsion springs. The job meant reaching the mechanism above the door, removing the parts concerned, then preparing and refitting the balancing system before carrying out the necessary adjustments.
This project sets out the stages of a sectional door spring replacement, from dismantling the mechanism through to the tests carried out after refitting.
What was carried out on site
- Secure the sectional door before working on the mechanism
- Remove the components needed to access the torsion springs
- Take down the existing springs and prepare the new set
- Check the drums, cables and various fixing points
- Refit the shaft and the new torsion springs
- Adjust the door’s balance then run several operating tests
Intervention facts
- Location
- Saint-Maur-des-Fossés · Saint-Maur-des-Fossés (94)
- Closure type
- Sectional garage door
- Specific intervention
- Replacement of the sectional door’s torsion springs.
- Client profile
- Home / residential garage
- Documented description
- Replacement of the torsion springs on an existing sectional garage door: securing the door, work on the balancing mechanism at the top of the opening, removal of the shaft and springs, preparation of the new set, refitting, tension adjustment, then opening and closing tests.
- Project category
- Repair
- Photo documentation
- 6 photographs
- Identified products
- Residential sectional door
From inspection to return to service
This job restored the sectional door’s balancing system while keeping the panels, the rails and the main existing components in place.
Secure the door and access the mechanism
Immobilise the sectional door and prepare the job on the shaft and the torsion springs located at the top of the opening.
Remove the existing springs
Dismantle the components of the balancing system in order to take out the springs that need replacing.
Prepare and refit the mechanism
Fit the new springs on the shaft, reposition the various components and check the drums as well as the cable routing.
Adjust the balance and test the door
Adjust the spring tension to achieve a balanced movement, then run several opening and closing cycles before returning the door to service.
The matching service, explained step by step: Residential repair
All our work on this type of closure: Residential doors
Why replace the springs of a sectional door?
Torsion springs play an essential role in how a sectional door operates. Fitted on the shaft above the door, they offset much of the panels’ weight to make the opening and closing movements easier.
Over repeated cycles, the springs are subject to recurring mechanical stress. Their wear can throw the door off balance, make it harder to operate, cause jerky movement or make it impossible to open the closure properly.
When a spring is damaged or no longer does its job properly, replacing it restores the door’s balance without necessarily replacing the whole piece of equipment.
Because the springs are under strong mechanical tension, replacing them calls for a suitable intervention and a precise adjustment of the balancing system.
What to watch for afterwards
After the springs are replaced, the sectional door should keep a regular, balanced movement as it is used.
- Check that the door runs up and down smoothly in its rails.
- Keep an eye on the condition and position of the cables as well as the drums.
- Report any unusual noise, jerky movement or imbalance of the door without delay.
- Do not work directly on the springs while they are under tension.
- Set up a maintenance contract to periodically check the springs, cables, rollers, rails, fixings and the door’s general operation.
Project report
Every stage in pictures
6 captioned on-site photographs
















