
Sash window repairs in Bondi
Heritage sash window repairs in Bondi. Coastal‑grade timber restoration, sash cord replacement and bespoke joinery for Federation and interwar homes. Request a quote.
Bondi sits right on the edge of the Tasman, and the same salt air that draws people to the beach is quietly working against the timber windows in its Federation cottages and interwar flats. Barnsbury Joinery restores and repairs heritage sash windows across Bondi and the eastern suburbs, bringing more than two decades of British heritage joinery expertise to homes built for a very different climate. We keep original windows working the way they were designed to, rather than replacing character with something that will never match.
Our approach is conservation‑led. Where a window can be repaired, we repair it; where sections are beyond saving, we manufacture like‑for‑like replacements to match the original profiles. Bespoke timber sections are made in our UK studio and shipped out, with glass sourced locally and all on‑site work carried out by trusted local partners under our specialists' direction.
Bondi's period homes and coastal conditions

Bondi's housing stock is a mix of late‑Victorian and Federation cottages on the streets climbing back from the beach, brick‑and‑render interwar flats and semis through the 1920s and 30s, and grander homes towards North Bondi and the Ben Buckler headland. Many carry the details that make timber sash windows worth saving: double‑hung boxes, fine glazing bars, timber sills and the proportioned facades that give streets like Curlewis, Hall and Wairoa their character.
Proximity to the water is the defining challenge here. Salt‑laden air and wind‑driven spray accelerate paint breakdown and timber decay, particularly on the seaward and weather‑facing elevations. Sills, the bottom rails of lower sashes and the base of the box frame are the first to suffer, and once the paint film fails, moisture gets into the joints. Interwar flats near the promenade and homes exposed to the north‑easterly weather tend to show this soonest, which is why coastal windows need repair methods and finishes chosen for the exposure, not generic ones.
What we do

We cover the full range of heritage sash window work. That includes easing sticking and rattling sashes, curing draughts, sash cord replacement and rebalancing so windows glide and hold their position, and timber rot repairs to sills, rails and frames using splice and resin techniques that keep as much original fabric as possible.
Where more is needed, we manufacture custom timber windows and bespoke joinery to match existing profiles, so a repaired opening reads as original rather than replaced. For owners wanting better comfort and quieter rooms near the beach, we also fit slimline heritage double glazing designed to sit within traditional sash sections without altering the sightlines that give the window its period look.
Our local approach for coastal exposure

Every project starts with a consultation and an on‑site inspection carried out by our local partners, who assess each window in place and note which elevations are taking the worst of the coastal weather. From there our heritage specialists specify the methods, timber, profiles and finishes suited to that exposure.
For Bondi homes we pay particular attention to the finishing system, because paint is the first line of defence against salt air. We prioritise durable, breathable coatings and well‑detailed drainage and glazing lines that shed water rather than trapping it. Bespoke sections are prepared in our UK studio to the specified profiles, glass is sourced locally, and installation and finishing are handled by our trusted local partners so the standard on site matches the standard in the studio.
How the process works

We keep things straightforward. After you request a quote we arrange a consultation and an on‑site inspection with our local partners, then send a detailed written proposal setting out exactly what we recommend, what will be repaired and what will be made new.
Once approved, timber sections are prepared in the studio while local glass is sourced, and installation and finishing are scheduled to suit you. Throughout, Barnsbury's heritage specialists specify the methods and profiles so the finished windows are correct for the building and built to last in a coastal setting.
Heritage conservation and approvals in Waverley

Bondi falls within Waverley Council, and parts of the suburb sit inside Heritage Conservation Areas under the Waverley Local Environmental Plan, with some individually listed properties as well. In practice this makes restoring original timber sash windows the sensible path, since like‑for‑like repair and maintenance are often exempt from approval while wholesale replacement or changes to glazing can require council consent.
We work in a way that respects that framework, favouring repair and faithful reproduction of original profiles. If your property is heritage listed or in a conservation area and your plans might need approval, we can flag it during the proposal stage so you know where you stand before work begins. We are not a substitute for council advice, but our conservation‑led approach is designed to keep original character intact.
Common questions
Does salt air near Bondi Beach mean my sash windows need replacing?
Rarely. Coastal exposure accelerates paint failure and rot at sills and lower rails, but most original sashes can be repaired by splicing out decayed timber and refinishing with durable, breathable coatings. We only make new sections where timber is genuinely beyond saving, and even then we match the original profiles.
Can you repair the windows in a Federation cottage or an interwar flat in Bondi?
Yes. We work across Bondi's period stock, from late‑Victorian and Federation cottages to 1920s and 30s brick flats and semis. We match existing glazing bars, sightlines and profiles so repaired and reproduced windows read as original to the building.
Will I need council approval from Waverley to repair my sash windows?
Like‑for‑like repair and maintenance of original windows are often exempt, but if your home is heritage listed or in a Conservation Area under the Waverley LEP, replacements or glazing changes may need consent. We can flag likely approval needs in your proposal, though you should confirm with the council.
How do I get started and how quickly will you respond?
Request a quote and we will respond within one business day to arrange a consultation and on‑site inspection through our local partners, followed by a detailed written proposal. You can also email info@barnsburyjoinery.com.
Restore your sash windows
Request a quote and include a few photos. We will respond within one business day.
Request a quoteA studio of The Barnsbury Group
Barnsbury Joinery is the flagship studio of The Barnsbury Group, a second‑generation heritage joinery house. Established in London in 1987, it makes bespoke joinery by hand and carries the parent voice for the family of studios.