Heritage Sash Window Restoration Service London Essex

Traditional Sash Window Restoration Across Kent & Surrey

We provide specialist sash window restoration services across Kent & Surrey, helping preserve period properties through careful timber repairs, draught proofing and traditional refurbishment.

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Our Restoration Process

Booking your restoration with Heritage Sash is the first step to bringing your original windows back to life. We carefully repair, restore and preserve your sash windows while improving performance and appearance.

Step 1

Carefully remove and assess your sash windows to understand exactly what can be restored rather than replaced.

Approx. 1–2 hours

Step 2

Strip back old paint, remove failed glazing, and clean all timber surfaces. Any rot or damage is identified and prepared for repair.

Approx. 1 day

Step 3

Carry out timber repairs using specialist fillers or splicing where needed. Sand and prepare all surfaces for a smooth, long-lasting finish.

Approx. 1 day

Step 4

Re-glaze panes where required and reassemble the sash windows. Install new cords, weights, and draught-proofing where needed for improved performance.

Approx. 1 day

Step 5

Prime, paint, finish, and reinstall the restored windows. Final adjustments are made to ensure smooth operation. Clean, tidy, and leave everything ready to use.
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Approx. 6 hours

Preserve Traditional Sash Windows

In most cases, sash windows don’t need replacing—they need restoring. Our process repairs, improves, and preserves your windows at a fraction of the cost of new units.

Repair Decayed Timber

Carefully repair damaged or rotten timber while retaining as much original material as possible.

Improve Window Performance

Restore smoother operation, reduce draughts and improve day-to-day usability.

Retain Period Character

Preserve original detailing and traditional sash window features across heritage homes.

Extend Window Lifespan

Professional restoration can significantly extend the life of traditional timber sash windows.

Save money vs replacement.

In most cases, restoring your sash windows costs far less than replacing them, while delivering similar comfort and performance improvements.

Restore Existing Windows Where Possible

Many traditional sash windows can be restored rather than replaced. Careful refurbishment and repair often improve comfort and performance while maintaining the original appearance of the property.

Lower Cost

Restoration and draught proofing can often achieve similar comfort improvements for a fraction of the cost of replacement windows.

Improve Comfort & Efficiency

Reduce heat loss, rattling and draughts while maintaining traditional character.

Preserve Original Features

Maintain the character and detailing of traditional timber sash windows while improving performance and usability.

Many sash windows are replaced unnecessarily. In many cases, careful restoration and draught proofing can extend their life for years while maintaining the original appearance of your property.

Areas We Cover

We provide sash window draught proofing, repair and restoration across London and Essex.

We regularly work in:

Sevenoaks

Tunbridge Wellsssex

Tonbridge

Canterbury

Guildford

Reigate

Cobham

Weybridge

Godalming

Heritage Sash Window Areas We Cover London Essex

We regularly travel across London, Essex and surrounding areas for sash window repair, draught proofing and restoration projects.

Sash Window Restoration FAQs

  1. How much does sash window restoration cost?
    Costs depend on the condition of your windows and the level of restoration required. Most restoration projects are significantly more cost-effective than full replacement with box restoration available. We provide clear, upfront quotes after assessing your windows.
  2. Can old sash windows really be restored?
    Yes, in most cases they can. Even heavily worn or damaged sash windows can often be re paired, rebalanced, and restored back to full working condition.
  3. What’s included in sash window restoration?
    Restoration typically includes timber repairs, sanding, re-glazing where required, new sash cords, draught proofing, and full reinstallation. Each project is tailored to your windows, with a detailed service guide provided before work begins once the scope is agreed. This ensures you know exactly what to expect at every stage of the restoration.
  4. Will restoration improve energy efficiency?
    Yes. When combined with draught proofing, restoration can significantly reduce heat loss and improve comfort and acoustic sound.
  5. How long does sash window restoration take?
    Sash window restoration is not a quick fix—it’s a detailed process focused on craftsmanship and long-term results. Most restorations are completed within 2–3 days, depending on the condition of the windows and the level of work required. We’ll confirm clear timings before any work begins.