Sliding Window Roller Replacement Singapore

What sliding window roller replacement involves

Roller replacement fits new wheels to the bottom of a sliding window panel so it glides on the track instead of dragging on it. It is the single most common sliding window repair in Singapore flats, because nylon rollers wear flat and tropical dust packs the track. Replacing rollers without also cleaning and checking the track usually brings the fault straight back.

Key facts
Typical Singapore market range	S$50 to S$150 per panel
Typical windows affected	Two-panel and three-panel aluminium sliding windows
Usual visit length	Single visit; the panel must be lifted out to reach the rollers
Part matched by	Photos of the track channel and, where safely visible, the roller housing
Common complication	A bent or worn track, which rollers alone will not fix

Signs the part may be faulty

The panel needs two hands or a shove to move.
You hear grinding, scraping or a rumble as it slides.
The panel judders, catches at one point, or jumps out of the track.
The panel sits visibly lower at one end or tilts as it moves.
There is a dark line of packed grit along the bottom channel.

Likely causes

The nylon roller wheels have worn flat or seized, so the panel drags.
Dust, sand and hair have packed into the track and jammed the wheels.
The track channel itself is dented, worn or has lost its running surface.
The roller height adjustment has drifted, leaving the panel out of level.
The panel has been forced repeatedly, distorting the frame corner.

How the repair is handled

Send a full-window photo, a close-up along the bottom track and a short video of the panel being moved.
The contractor identifies the roller type and checks the track condition from the images.
You receive a quotation that states whether track work is included or would be a separate item.
On site, the panel is lifted out, old rollers removed, the track cleaned and new rollers fitted.
The roller height is adjusted so the panel runs level, then it is tested end to end.

What this repair costs in Singapore

Typical Singapore market range S$50 to S$150 per panel

Usually quoted inclusive of the rollers, the labour to lift the panel out and a track clean.

Higher for large or heavy panels, three-panel units, and where the track itself is worn or dented and needs separate attention.

Your own quotation comes from the assigned contractor, after they have seen the photos, and it states what is included, what is excluded and whether GST applies. Use the range above to sanity-check that number rather than as a substitute for it. What moves it:

Part cost and availability. A current, widely stocked part costs less than an obsolete profile that must be matched or adapted.
How many windows. Several windows in one visit share the travel and setup cost, so the per-window cost falls.
Access and height. A window that needs external access, or work at an awkward height, takes longer and needs more precaution.
Whether a measure is needed. Glass and some frame work need a site measure before ordering, so the job runs over two visits.
Diagnosis certainty. Leakage and intermittent faults are normally inspected first. An inspection fee is quoted up front.

See the full window repair price guide for every service, the charges that sit alongside the repair, and how to compare two quotations.

Who is allowed to do this work

Repairing or replacing parts on an existing window is maintenance. HDB states that flat owners or occupants are responsible for maintaining existing aluminium windows. Installing or replacing a whole aluminium window in an HDB flat is different: HDB states that it must be carried out by a BCA-approved window contractor listed in HDB's directory, and BCA defines an approved window contractor as a firm registered under workhead RW01. Where your job falls into the regulated category, we assign it to a partner holding that registration and listing. Read the contractor rules guide.

Warranty

HDB's terms for approved window contractors listed with HDB set a minimum three-month warranty on replaced parts and a one-year warranty on a total window replacement. We require partner terms that meet the current official requirement, and the applicable warranty must appear on both the quotation and the invoice — not be described verbally. If a repair fails inside its warranty period, tell us and we handle it with the partner rather than leaving you to chase it.

The three things we need

One full-window photo taken from inside, showing the whole window and its surroundings.
One close-up of the faulty part or the damage, sharp and well lit.
A short video — only if the problem involves movement, sticking or noise. Ten seconds is enough.

Photos with the window both open and closed help. Please do not lean out of a window or climb to take a photo — send what you can safely reach.

Send Photos for a Quote WhatsApp us

No account needed. Photos are shared only with the contractor partner assigned to your job.

Frequently asked questions

Why does my sliding window make a grinding sound?

Grinding almost always means the roller is no longer rolling. Either the wheel has seized and is being dragged along the track, or grit in the channel is being crushed under the wheel. Continuing to force it wears the track itself, which is a more expensive repair than the rollers.

Can I just clean the track instead of replacing the rollers?

Cleaning helps and is worth doing regularly. But once the nylon wheels have worn flat or seized, cleaning only buys a little time. A contractor can tell from the panel movement and the wear pattern whether cleaning alone is realistic.

How long does a roller replacement take?

A straightforward two-panel window is normally done within one visit. It takes longer if the panel is large, the track needs attention, or the window is in a position where the panel cannot be lifted out safely without extra care.