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Sliding Window

Sliding Window Installation

Exact Carpentry – Launceston • West Tamar • Northern Midlands

Sliding windows look simple until they stop working. When they’re right, they glide with two fingers, seal properly, and stay exactly where you put them. When they’re wrong, you feel it every single time you try to open them.

A stiff roller. A track full of grit. A sash that jumps. A latch that never lines up. A draught that sneaks in during winter. A frame that’s moved just enough to make everything feel off.

Tasmania is rough on sliding windows. Cold nights, warm days, moisture, house movement, and the constant expansion and contraction of timber and aluminium it all adds up. A sliding window that worked perfectly ten years ago can suddenly feel like it belongs in someone else’s house.

Installing a new sliding window isn’t “putting in a window”. It’s making sure the opening is ready for it.

Where a Sliding Window Installation Really Starts

Before the new window even comes out of the packaging, we look at the opening properly not a quick glance.

Sliding windows rely on:

  • a level track
  • a straight frame
  • rollers that carry the weight
  • a sash that sits square
  • a latch that meets cleanly

If any of these are out, the window will fight you.

So we check:

  • frame condition
  • house movement
  • sill alignment
  • jamb straightness
  • wind exposure
  • moisture issues
  • cladding or brickwork condition

A sliding window won’t hide problems. It will highlight them.

Choosing the Right Sliding, Window Honest Comparison

Aluminium Sliding Windows

The most common and the most misunderstood.

  • low‑maintenance
  • modern look
  • strong frames
  • BUT aluminium is a cold, conductive material
  • sweats/condenses on cold mornings
  • leaks heat in winter and gains heat in summer
  • MUST be double‑glazed to perform well
  • not ideal for older or heritage homes
  • can feel permanently cold to the touch

Best for: modern homes, brick veneer, new builds Bad for: older homes where warmth and character matter

Timber Sliding Windows

A warmer, more forgiving option.

  • suits older homes
  • easier to repair and adjust
  • better thermal performance than aluminium
  • can swell or shrink with moisture
  • needs paint or oil to stay protected

Best for: heritage homes, cottages, character houses

Double‑Glazed Sliding Windows

A major improvement but still limited by the sliding design.

  • reduces heat loss
  • quieter inside
  • reduces condensation
  • heavier sash → rollers must be high‑quality
  • still not as airtight as awning or casement windows

Best for: people wanting warmth but needing a sliding design

PVC Sliding Windows

A good middle ground but not perfect.

  • warmer frame than aluminium
  • good sealing when installed properly
  • low maintenance
  • can warp in extreme heat
  • not ideal for very large openings

Best for: modern homes wanting better thermal performance

Custom‑Sized Sliding Windows

For older homes where nothing is standard.

  • allows proper fit
  • prevents jumping and rubbing
  • needs careful packing and alignment

Best for: older homes with movement or non‑standard openings

Energy Performance – The Real Story

Sliding windows are not the best performers for sealing or warmth and people deserve to know that.

They rely on sliding channels, not compression, so:

  • they leak more air than awning or casement windows
  • they lose more heat in winter
  • they drift more easily in wind
  • they rely heavily on roller quality
  • double glazing helps, but doesn’t fix poor sealing

Honest comparison:

  • Best sealing: Awning, casement
  • Moderate sealing: Double‑hung
  • Weakest sealing: Sliding windows

Sliding windows are chosen for convenience, not energy performance.

What Sliding Window Installation Costs in Tasmania

Most installations fall between:

  • $350 – $1,200 (window + installation)
  • $250 – $600 (installation only)

Costs depend on:

  • window size
  • glazing type
  • frame repairs
  • sill levelling
  • roller type
  • hardware (locks, handles)
  • trimming or packing the opening

Sliding windows look simple. They’re not. They’re a track‑and‑alignment job.

Common Problems We See in Tasmanian Homes

  • worn‑out tracks
  • collapsed rollers
  • frames that have moved
  • sashes that drift open
  • sashes that slam shut
  • latches that never line up
  • drafts creeping in
  • water getting in around the sill
  • windows that jump off the track

A new window won’t fix these unless the opening is corrected first.

When the Window Finally Glides Cleanly

There’s a moment in every installation where the window stops arguing. It glides. It seals. It locks without force. It doesn’t drift. It doesn’t rattle. It doesn’t bounce.

It feels like part of the house again.

That’s when you know the job is done properly.

Why People Choose Exact Carpentry

Because we don’t just fit a window, we make sure it works.

We take the time to:

  • level the track
  • align the frame
  • set the rollers
  • seal the edges
  • adjust the latch
  • fix drafts
  • stop drifting
  • stop rattling

A sliding window should feel effortless. That’s the whole point of having one.

Get a Sliding Window Installation Quote

Send us a photo of the opening inside and out. Tell us the size and type of window you want. We’ll tell you exactly what’s involved and what it will cost.

“The smallest things make the biggest difference.”