A metal shutter that squeaks, strains or judders usually needs just one thing: proper lubrication. Fifteen minutes twice a year is enough — provided you use the right products in the right places.
What to lubricate
- The side rails: after dusting (vacuum then cloth), apply a dry silicone or PTFE lubricant. Never thick grease: it traps dust and forms an abrasive paste.
- The shutter lock: a puff of dry lubricant into the cylinder, a few key turns, wipe clean.
- The axle ends and bearings: lithium grease on the accessible rotation points, sparingly.
- Bolts and blocking bars: light penetrating oil on latches and pivots.
What never to touch
- The motor and its brake: factory-lubricated for life — any addition degrades braking
- The curtain itself: a damp cloth is enough; slats need no grease
- The springs in the box: reaching them requires removal, strictly a professional job
The complete maintenance routine
- Clean the rails and curtain
- Dry-lubricate the rails and lock
- Visually check fasteners, stops and fixings
- Listen to a full cycle: any new noise is a signal
For a shop, an annual maintenance contract with spring and safety checks clearly extends service life. Our teams maintain metal shutters throughout Île-de-France — free quote.