A master joiner’s perspective on preserving older Western Australian properties, their thermal comfort, and premium real estate valuation.
If you own an old cottage or Federation-era home in the Perth metropolitan area, you have likely received unsolicited recommendations to rip out your old sliding windows and replace them with maintenance-free aluminium units. To the untrained eye, old timber sashes that rattle, stick, or suffer from broken cords look like obsolete relics that are ready for the skip. However, this is one of the most expensive architectural mistakes a property owner can make.
The timber used in Western Australian homes built between 1880 and 1945 is vastly superior to anything available on the commercial timber market today. These windows were crafted from slow-grown, old-growth timbers—specifically dense red Jarrah (Eucalyptus marginata) and high-quality European Baltic Pine. Because these trees grew slowly over centuries, their timber has extraordinarily tight growth rings. This density makes them naturally resistant to rot, fungal decay, and boring pests, and dimensionally stable under Western Australia’s harsh baking summers and damp winters.
In contrast, modern wood replacements are typically constructed of fast-grown, plantation softwood like radiata pine. This timber is chemically treated just to survive outdoor environments and is prone to warping, splitting, and rotting within a single decade. Ripping out original 100-year-old Jarrah sashes to replace them with timber replicas or modern aluminium frames is a massive downgrade in pure physical quality.
Furthermore, flat aluminium panels completely alter the physical face of a vintage property. A classic Federation, Edwardian, or Victorian home relies on the depth and shadow lines of double-hung windows—including the traditional ovolo glazing bars, beautiful decorative timber horns, deep meeting rails, and solid staff beads. Flat aluminium templates look incredibly thin and flat, stripping the house of its historic character and noticeably lowering its premium appeal to heritage-focused buyers.
The good news is that timber sash windows are inherently fully repairable. Because of their modular construction, any individual part—be it a snapped cord, a rotten bottom sill, or a cracked glass pane—can be surgically detached, restored, and reassembled. At Sash Windows WA, we employ specialized epoxy systems and craft-splicing to conserve your original timber frames, bringing back the fluid glide, deep beauty, and absolute structural integrity of your windows for another lifetime.
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