{"id":1049,"date":"2026-04-14T19:57:46","date_gmt":"2026-04-14T18:57:46","guid":{"rendered":"https:\/\/goldenratiowindows.co.uk\/blog\/?p=1049"},"modified":"2026-04-14T20:56:21","modified_gmt":"2026-04-14T19:56:21","slug":"how-to-restore-wooden-sash-windows","status":"publish","type":"post","link":"https:\/\/goldenratiowindows.co.uk\/blog\/how-to-restore-wooden-sash-windows\/","title":{"rendered":"How to Restore Wooden Sash Windows: The Ultimate London Guide"},"content":{"rendered":"\n

Owning a period property in London comes with the responsibility of maintaining its architectural soul. If you are searching for how to restore wooden sash windows<\/strong>, you likely face common issues like stuck sashes, snapped cords, or peeling paint.<\/p>\n\n\n\n

While many homeowners consider restoring sash windows DIY<\/strong>, the complexity of these 19th-century mechanisms often requires a professional touch to ensure longevity and “the feeling of quality.”<\/p>\n\n\n\n

In cases where original timber is beyond salvage, we often recommend a hybrid approach, incorporating the same high-durability timber found in our flush window accoya design in London<\/a> for replacement sections.<\/p>\n\n\n\n

\"how<\/figure>\n\n\n\n

Key Steps on How to Restore Wooden Sash Windows<\/h2>\n\n\n\n

To truly restore wooden sash windows<\/strong>, we follow a precision-led methodology that addresses both aesthetics and mechanics:<\/p>\n\n\n\n

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  1. Internal Removal:<\/strong> Most traditional sashes can be removed from the inside by detaching the staff beads, avoiding the need for scaffolding.<\/li>\n\n\n\n
  2. Paint Stripping:<\/strong> We remove decades of thick, lead-based paint to reveal the original timber profile.<\/li>\n\n\n\n
  3. Timber Splicing:<\/strong> We remove rot and replace it with durable, sustainable timber like Accoya.<\/li>\n\n\n\n
  4. Re-weighting:<\/strong> We calculate the exact weight of the glass to ensure the window glides perfectly.<\/li>\n<\/ol>\n\n\n\n

    Assessing the Damage: Can You Repair a Rotten Sash Window?<\/h2>\n\n\n\n

    The first step in any project to renovate old sash windows<\/strong> is a thorough survey. Timber windows are resilient, but they are susceptible to wet rot, especially in the sills and bottom rails.<\/p>\n\n\n\n