Sliding Window Roller Replacement in Wellington
Glass and Window Repair Wellington replaces sliding window rollers and repairs tracks across the city. Sashes that need two hands, grind as they move, jump out of the track or will not latch because they no longer sit at the right height.
- Rollers replaced and tracks dressed or capped
- Fixes sticking, grinding and jumping sashes
- Usually done in one visit
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Four quick questions. Most quotes come back the same day.
Sliding windows are everywhere in Wellington's 1970s to 1990s aluminium joinery, particularly through Johnsonville, Tawa, Newlands and the Hutt Valley subdivisions of that era. The rollers are small, they carry a lot of weight, and they collect grit. On coastal and harbour side homes salt seizes the bearings on top of that.
Rollers, then track, then grit
Diagnose in that order. A sash that grinds and drags usually has flat spotted or seized rollers. A sash that is heavy even with new rollers has a worn track with a groove in it. A sash that was fine last month and is stiff now usually just has grit in the track.
Replacing rollers on a badly worn track is money wasted, because the new rollers ride the same groove and wear out early. We check both.
Track repair options
Light wear can be dressed and lubricated with a dry film instead of an oil, which does not attract grit. Moderate wear takes a stainless capping fitted over the existing track, which is quick and gives a hard running surface. Badly worn alloy tracks get replaced.
Latching problems that are really roller problems
If a sliding window will not latch, check the roller height adjustment before condemning the lock. Rollers on most suites have a screw adjustment, and once they wear the sash drops enough that the latch misses the keeper.
Adjusting or replacing the rollers puts the sash back at the right height and the latch works again.
Track wear, and why new rollers alone fail
Check the track before ordering rollers
A worn alloy track has a groove running along its top edge. Drop new rollers into that and they ride the same groove and flat spot within a year, so the customer concludes the repair did not work.
Light wear gets dressed and lubricated with a dry film, not oil, because oil holds grit. Moderate wear takes a stainless capping over the existing track. Only badly worn alloy needs replacing.
Latching problems that are roller problems
If a sliding window will not latch, check the roller height adjustment before condemning the lock. Most suites have a screw adjustment, and once the rollers wear the sash drops far enough that the latch passes under the keeper.
Winding the rollers back up is often the entire repair.
Sliding Window Roller Replacement at a glance
- Rollers
- Nylon and stainless bearing types, common sizes stocked
- Track light wear
- Dressed and lubricated with dry film, not oil
- Track moderate wear
- Stainless capping fitted over the existing track
- Track heavy wear
- Alloy track replaced
- Latching
- Roller height adjusted so the latch meets the keeper
- Typical visit
- Most sliding window repairs done in one visit
Sliding Window Roller Replacement in Wellington: common questions
Why is my sliding window so hard to open?
Rollers first, worn track second, grit third. Most are fixed in one visit.
Can the track be repaired without replacing the window?
Yes. Light wear is dressed, moderate wear takes a stainless capping, and only badly worn alloy tracks need replacing.
My sliding window will not latch. Is the lock broken?
Usually the rollers have worn and the sash has dropped, so the latch misses. Adjusting or replacing them fixes it.
Recent Wellington jobs
Got three quotes for retrofitting the front of the house. Only ones who measured every opening and explained why the north facing rooms needed different glass. Eleven windows over two days, and the road noise dropped more than I expected.
Landlord here. Had four properties assessed for the Healthy Homes ventilation rule and two needed openable sashes freed up rather than new joinery, which saved me a fortune. Straight answers, written report, no upselling.
Ranch slider had been jamming for years and we assumed it needed replacing. Turned out to be rollers and a bent track. Two hours, a fraction of the price we were braced for.
Fogged unit in the lounge, measured on the Tuesday and in by the following Monday. Fair price and they cleaned up after themselves.
Get a price for sliding window roller replacement in Wellington
Free measure, fixed written quote, and a straight answer on whether it needs repairing or replacing.
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Four questions and you are done.