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Roller Blind Technical Info and Parts
Every roller blind is built from five parts. Learn the roller blind parts by name, and a quote makes sense, a broken blind stops being a mystery, and you'll often find it can be fixed.
Or call 09 441 9455. Mon to Fri, 8:00am to 4:30pm.
When only a chain or winder has failed, a whole new blind is money you didn't need to spend. And a quote that lists tubes and brackets is hard to check if you don't know what they are.
We measure, supply and install roller blinds across Auckland, and we fit replacement roller blind parts in Auckland as part of a repair. Trade, DIY or homeowner, call with the make and what's failed, and we'll check what's available.
Call 09 441 9455, Monday to Friday, 8:00am to 4:30pm, for a free measure and quote or help with a repair. Or send us a message.
✓ Locally made in New Zealand
✓ Free measure and quote
✓ 2 year full warranty (no call-out fee)
✓ 260+ five-star Google reviews
✓ In business since 2010
The five parts of a roller blind
A roller blind has five main parts:
✓ The tube (or barrel), the aluminium roll the fabric wraps around
✓ The fabric, with ultrasonically sealed edges
✓ The bottom rail, the aluminium bar along the bottom edge
✓ The chain winder and idler, which fit inside the tube, or a motor in their place
✓ The powder coated steel brackets that hold the blind up
Extras sit on top of those: spring assist, linking brackets, bracket covers and a pelmet or head box.
Once you know the roller blind components by name, a slipping chain or a crooked bottom rail is easy to describe, and a quote is easy to check.
Roller blind tubes and brackets
Tube sizes: 38mm and 45mm
Every roller blind tube we fit is aluminium, in a 38mm or 45mm diameter. Wide or heavy blinds take a heavy-duty 45mm, so look for that on the quote.
Brackets
Steel roller blind brackets come in white, cream, grey or black. You can have single brackets, or dual brackets for a double blind. Bracket covers tidy the ends.
Roller blind fabric types
There are four roller blind fabric types:
✓ Sunscreen
✓ Light filtering
✓ Blockout, for a room you want dark (see our blockout blinds)
✓ Thermal
Fabric is easier to pick at home, so we bring the showroom to you. Samples are matched in your own light, against your own joinery, because what looks right in a showroom often doesn't at home. See the full range on our roller blinds in Auckland page.
Torn or faded fabric? It's one of the parts we can replace in a repair.
Roller blind chains, spring assist and motors
Chain or spring assist
Most blinds run on a chain, with the mechanism and idler inside the tube. Your roller blind chain can be:
✓ Plastic, in white, off-white, beige, grey or black
✓ Stainless steel
Spring assist is an optional extra. We check it suits your blind at the measure.
Motors
A roller blind motor takes the place of the chain. You can choose:
✓ Battery power, rechargeable and charged in place
✓ Hardwired power
✓ Control by remote, wall switch, or an app through a hub
Some motor brands carry a 5 year manufacturer's warranty on the motor itself. Our own warranty on the fitted blind is 2 years full. There's more on our motorised blinds page.
Bottom rails, pelmets and linking
Bottom rail shapes and colours
The roller blind bottom rail comes in round, oval or flat aluminium. Colours are natural anodised, white, cream or black.
Pelmets and head boxes
A pelmet or enclosed head box hides the roll and cuts the light that gets in at the top. It's worth asking about for a bedroom where that strip of light bothers you.
Linked roller blinds on one chain or motor
Linking brackets let several blinds run off one chain or one motor, so a row of linked roller blinds opens and closes together.
Roller blind child safety: chain tidies and motors
A chain tidy fixes the chain to the window jamb, out of reach of small children. A motorised blind has no chain at all.
Missing a chain tidy or clips on an older blind? Mention it when you call, and we'll sort it with the rest of the repair.
Replace a roller blind part, not the whole blind
Most of the time, you can keep the blind. We fit replacement:
✓ Chains
✓ Winders and idlers
✓ Brackets
✓ Bottom rails
✓ Tubes
✓ Fabric
We'll look at blinds fitted by others too, where parts are available.
Got an older blind with Acmeda roller blind parts, or another make? Tell us what you have and we'll check what we can get. We fit the part ourselves, so it's matched to your blind. More on our repairs and servicing page.
Broken blind? Call 09 441 9455 with the make, if you know it, and what's stopped working.
How to clean a roller blind
Cleaning comes down to the fabric:
✓ Dust or vacuum it gently, and use sticky tape to pull out excess grit before anything damp touches it
✓ Spot clean with a damp cloth
✓ Don't soak it
Follow-up maintenance and servicing is available on every blind we fit. New blinds carry our 2-year full warranty, parts and labour, with no call-out fee. If something goes wrong, we come and fix it.
The detail is on our warranty page, and our technical info and how-to guides cover our other products.
What our customers say
Two of our 260 five-star Google reviews, both about getting the small parts right.
"Good follow up service when we realised we did not have the safety clips for our blind cords ... remedied immediately." (susan, September 2020)
"I had some doubts about motor compatibility, and they went the extra mile by bringing sample tubes to ensure my motors would fit ... I needed brackets for a different type of motor, and they helped me find ones that matched the color and style perfectly." (Vasily, February 2025)
Most of our customers are repeat clients or came to us through a friend.
Roller blind parts questions
What are the parts of a roller blind?
There are five main parts: the aluminium tube, the fabric, the bottom rail, the powder coated steel brackets, and the chain winder and idler. A motor can replace the winder.
What tube sizes do roller blinds use?
38mm and 45mm. Wide or heavy blinds take a heavy-duty 45mm tube.
Chain, spring or motor: how is a roller blind operated?
Most run on a plastic or stainless steel chain, and spring assist is an optional extra. A motor replaces the chain and runs on battery or hardwired power, by remote, wall switch or app.
What bottom rail shapes and colours are there?
Round, oval or flat, all in aluminium. The colours are natural anodised, white, cream and black.
Can two blinds be linked to one chain?
Yes. Linking brackets let several blinds run off one chain or one motor.
Can you replace a part on my existing blind?
Yes. We fit chains, winders and idlers, brackets, bottom rails, tubes and fabric, including on blinds fitted by others where parts are available.
Do you sell parts on their own?
No, we fit the part for you in a repair, so it's matched to your blind. Call with the make and what's failed, and we'll check what's available.
New blinds or a repair? Book a free measure
Calling is the quickest way: 09 441 9455, Monday to Friday, 8:00am to 4:30pm. For a repair, tell us what's stopped working. For new blinds, tell us your suburb and roughly how many windows.
Your free measure and quote for new blinds in the Auckland area includes:
✓ David or Roman, one of the two owners, at your door, with no obligation
✓ Every window measured in person
✓ Fabric samples matched in your own light and joinery
✓ A firm price, with our 2-year full warranty and no call-out fee
Now you know the five parts, you'll be able to read the quote line by line. New blinds take 3 to 4 weeks. If you'd rather not call, book your free measure and quote online.
Related pages
✓ Technical info and how-to guides
✓ Awning technical info and soffit brackets
✓ Warranty