Heritage Timber Restoration
Sash Window Repair in Sydney
A double-hung sash window is a beautifully simple mechanism, until a cord snaps or the timber swells and it stops working. Noble Heritage repairs heritage sash windows throughout Sydney: replacing broken cords, weights, and pulleys, freeing stuck and painted-shut sashes, and curing the draughts and rattles that make old windows feel tired. We bring them back to a smooth, quiet, weather-tight glide.
Signs you may need this work
Common problems we resolve
- A sash that won't stay up, or crashes shut, a sign of a broken cord
- Windows painted or swollen shut and impossible to open
- Rattling sashes that let in wind, dust, and noise
- Worn, missing, or seized pulleys and parting beads
- Gaps at the meeting rail letting in draughts
Cords, weights, pulleys, and balance
The classic sash failure is a broken cord. When one goes, the hidden cast-iron weight drops into the box frame and the sash stops counterbalancing. We open the frame, replace cords with traditional waxed sash cord, re-match the weights to the glazed sash, and service or replace the pulleys so both sashes move freely and stay put at any height.
Where parting beads and staff beads are worn or have been painted over, we replace or re-profile them so the sashes run true without binding. Every window is adjusted by hand until it glides smoothly and locks securely.
Draughts, rattles, and rot
Old sashes rattle because the gaps that let them move have grown too large. We can fit discreet brush or compression seals that stop draughts and rattles while keeping the window fully operable, dramatically improving comfort without changing its appearance.
If we find rot in the sill, lower rail, or box frame while the window is open, we repair it at the same time using splice repairs in matched timber, so you are not paying twice for access. Reglazing and re-puttying can also be completed in the same visit.
What's included
- Waxed sash cord and weight replacement
- Pulley service and parting bead renewal
- Draught and rattle elimination
- Freeing painted-shut and swollen sashes
How we work
Our restoration process
On-site assessment
We inspect every element, document its condition, and identify what can be saved versus what needs replication, then provide a clear written scope and quote.
Conservation plan
We agree an approach that satisfies heritage guidelines and, where required, liaise with your council, architect, or heritage consultant before work begins.
Workshop and on-site repair
Skilled tradespeople carry out the work using traditional techniques and premium, species-matched timber, in our workshop or on site to suit the job.
Finishing and handover
We apply heritage-appropriate finishes, reinstall hardware, and walk you through the completed work so it performs and looks the part for decades.
Questions answered
Sash window repair: common questions
My sash window won't stay open, what's wrong?
Almost always a broken sash cord. The counterweight has dropped inside the frame. We replace both cords (we recommend doing the pair), service the pulleys, and rebalance the sash so it holds at any height.
Can you fix windows that have been painted shut?
Yes. We carefully free painted-shut and swollen sashes without damaging the timber or glass, then ease and adjust them so they operate properly again.
Can draughts be stopped without replacing the window?
Yes. Discreet seals fitted during repair stop draughts and rattles while keeping the original window fully functional and unchanged in appearance.
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