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​Sash Window Repairs & Restoration in Wandsworth

 

If your Wandsworth home has original timber sash windows, we’ll help you keep them running beautifully—and compliant with local character—without unnecessary replacement. Our specialist team repairs, restores and upgrades sash windows across Battersea (SW11), Putney (SW15), Tooting (SW17), Earlsfield & Wandsworth Town (SW18), Southfields (SW18) and Balham (SW12).

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Common sash issues we fix in Wandsworth homes:


Water ingress, rotting sills (often on south/west elevations), stuck or painted-shut sashes, snapped cords, rattling/draughts and cracked putty are common in the borough’s Victorian and Edwardian stock. Left too long, quick filler jobs make things worse. We’ll diagnose the root cause and specify the right repair—so your windows open smoothly, seal properly and look period-correct.

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Our repair & restoration process:​

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  • Carefully remove staff/parting beads; take out top & bottom sashes

  • Inspect and repair box frames, sills and external pointing

  • Re-rope and balance with quality, sealed-bearing pulleys

  • Clean back excess paint; re-putty where needed; replace damaged glazing

  • Fit discreet draught-proofing throughout the sash and frame

  • Prime exposed timber, caulk beads, and fit new ironmongery if required
    This method restores function and longevity while preserving original detailing.

 

Draught proofing & slimline double glazing upgrades:

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A well-restored single-glazed sash with modern draught seals performs far better than most people expect. Where clients want extra efficiency and comfort, we offer:

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  • Slimline double glazed sashes built to match original profiles

  • Acoustic glass options for traffic or flight paths

  • Secondary glazing for listed or sensitive properties
    All upgrades are designed to be sympathetic to period façades and local conservation guidance. (Discuss options for your specific street and building type.)

 

Conservation-area friendly repairs:


Parts of Wandsworth—including areas around Battersea Park, Wandsworth Town, West Putney, Heaver Estate and Nightingale Lane—sit within designated conservation areas. We carry out like-for-like repairs and sensitive upgrades and will advise when to check planning/consents before altering external appearance (for example, switching glazing style or profiles). Always verify your address and any Article 4 Direction with Wandsworth Council before works that change external appearance—we’ll guide you through the practicalities.


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Areas we cover in Wandsworth (same-week surveys available):

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  • Battersea (SW11) – Shaftesbury Park, Latchmere, Northcote

  • Putney (SW15) – West Putney, Dover House Estate, Putney Embankment

  • Wandsworth Town & Earlsfield (SW18) – The Tonsleys, Wandsworth Common

  • Tooting (SW17) – Heaver Estate, Furzedown

  • Southfields (SW18) and Balham (SW12) (border areas)

 

Why homeowners choose Barnsbury Joinery:

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  • Repair-first approach that protects original timber and character

  • Workshop support for bespoke component manufacture when sections are too far gone

  • Options for security hardware, safety glass and child-safe restrictors

  • Clear pricing and staged works to minimise disruption

  • Fully insured, polite teams who respect your home

 

Recent Wandsworth projects & reviews:


Ask for our portfolio: we’re happy to share before/after photos of sash repairs in Battersea, Putney and Wandsworth Town, plus recent client reviews. We can also provide references on request.

 

FAQs


Do I need permission to change my sash windows in a Wandsworth conservation area?


Like-for-like repairs usually don’t require consent, but alterations that change the external appearance (e.g., glazing bars, profiles, double-glazed units) may. Always check your address on the council map and speak to planning if unsure—we can help you prepare details.

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Can you retrofit double glazing into my existing frames?


Often, yes. Where the box/frame is sound, we can build new slimline double-glazed sashes to match original sightlines. In listed buildings or tightly controlled streets, secondary glazing may be the right route.

 

Will repairs stop draughts and rattles?
 

Yes—our perimeter draught-proofing and correct sash balance are designed to eliminate rattle and reduce heat loss.

 

How long does a typical repair take?


Most single-window refurbishments are completed in a day; whole-house projects vary. We’ll schedule to minimise time without secure glazing.

 

Do you offer painting?
 

Yes. We can prime, undercoat and return for final finish coats, or coordinate with your decorator to the manufacturer’s system. Please visit our painting guide page

 

Get a fast local quote:
Use our quick quote form or call 0207 164 6305. We’ll book a convenient survey in Wandsworth and provide a clear, itemised proposal.​​​

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