The pelmet is the aluminium cover that sits at the top of your roller shutter. It houses the barrel, motor, and rolled-up curtain when the shutter is open. Most people never think about it until it starts rattling in the wind, gets dented, or shows the first signs of corrosion.
A damaged pelmet is not just cosmetic. It exposes the motor, springs, and axle to rain, dust, and insects. Left alone, a minor pelmet issue turns into an expensive repair on the components it was supposed to protect. This guide covers what goes wrong with pelmets, how to diagnose the problem, and what you can fix yourself.
Before you open a pelmet box, disconnect the power to the shutter at the switchboard. Motorised shutters have live wiring inside the pelmet, and the aluminium edges are sharp. Wear gloves and safety glasses.
The pelmet goes by several names: head box, hood, canopy cover, or header. They all refer to the same part. It is the aluminium enclosure bolted above the window opening that holds the roller barrel, the motor or spring mechanism, and the curtain when it is fully retracted.
It keeps weather out, blocks dust and insects from reaching the barrel and guide rails, and hides the mechanical parts from view. Pelmets are made from folded aluminium sheet, powder-coated to match the shutter colour. They attach to the wall with pop rivets or screws, and on most residential shutters, the front panel lifts off after removing two to four fasteners.
Most pelmet issues fall into a handful of categories. Working out which one you are dealing with tells you whether it is a DIY fix or a job for a technician.
A rattling pelmet is the most common complaint Fix My Shutters gets about this part. The rattle usually happens when wind catches the shutter curtain and transfers vibration to the cover. But the noise can also come from inside the box.
Aluminium pelmets dent easily. A football, a dropped tool during gutter cleaning, or hail can leave marks. Minor dents are cosmetic, but a severe dent can press the cover against the barrel and cause slats to jam or scratch every time the shutter operates.
Powder-coated aluminium resists rust, but coastal properties cop salt spray that breaks down the coating over years. White aluminium oxide builds up, and eventually the metal pits. Steel rivets and brackets inside the pelmet can rust independently, staining the aluminium and seizing fasteners.
A pelmet that no longer seals lets water in. Look for water marks below the shutter, damp patches around the window frame, or rust on internal parts. On older installations, mounting brackets or masonry anchors can also fail, causing the pelmet to pull away from the wall. That is a safety issue because the pelmet carries the full weight of the barrel assembly.
If your pelmet is pulling away from the wall or feels loose when you push it, stop using the shutter. Contact a technician before it comes down.
Before you pull any rivets, a visual check from the ground narrows things down. Work through these steps in order.
If the shutter also grinds during travel, the problem might sit deeper than the pelmet. Our noisy roller shutter guide covers motor, guide rail, and slat issues that can sound like pelmet problems.
Several pelmet issues are straightforward fixes if you are comfortable on a ladder and have basic tools.
If the pelmet rattles but looks undamaged, loose fasteners are the likely cause. For screws, tighten with a Phillips head or hex driver. Do not overtighten or you will strip the aluminium. For pop rivets, you cannot re-tighten them. Drill out a loose rivet with a 3.2mm bit and replace it. A hand riveter costs under $30 from any hardware store.
Dust seals along the bottom edge are the most common wear item. Peel off the old seal, clean the surface with methylated spirits, and press on a new self-adhesive brush strip cut to length. Give the adhesive 24 hours to cure before operating the shutter.
Use a non-abrasive aluminium cleaner or a paste of bicarb soda and water. Scrub gently with a soft cloth, rinse, and dry. Apply touch-up paint or clear metal sealant to protect the exposed aluminium. If the corrosion has pitted the metal or the aluminium is flaking, surface treatment will not hold and the cover needs replacing.
Remove the pelmet cover by drilling out the pop rivets, lay it on a flat surface, and gently tap the dent from behind with a rubber mallet. Work from the edges toward the centre. This works for shallow dents in flat sections. Creased aluminium or dents near folds will not press out cleanly and need a replacement cover.
If you open the pelmet and find a motor or wiring issue, stop there. Electrical work on shutters needs a licensed technician. Our electric shutter repair guide covers what is involved.
Not every damaged pelmet is worth repairing. Here is a quick reference.
| Problem | Repair | Replace |
|---|---|---|
| Loose fasteners | Tighten or re-rivet | Not needed |
| Worn seals | New brush or rubber strip | Not needed |
| Surface corrosion | Clean and seal | Only if pitting is deep |
| Minor dents | Tap out from behind | If creased or near folds |
| Severe dents | Cannot restore shape | Replace the cover |
| Deep corrosion | Treatment will not hold | Replace the cover |
| Pulling from wall | Re-anchor brackets | Replace if frame is bent |
Replacement covers are sized to your shutter width and available from roller shutter suppliers. A technician can also fabricate a custom cover for older or non-standard installations.
If the internal components are damaged too, the repair goes beyond the pelmet. Our guide to expensive roller shutter repairs covers jobs that start with what looks like a simple pelmet problem.
A rattling or damaged pelmet gets worse the longer you leave it. What starts as an annoying noise turns into water damage to the motor, corroded springs, or a full shutter replacement.
Fix My Shutters services roller shutters across Sydney, from Parramatta to Penrith. Get in touch for a quote on pelmet repairs.
