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Rotten timber sash window sill and corner box frame damage being cleared for repair

Timber Box Frame Repair in City Of Westminster , Westminster

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Local Area Service Serving City Of Westminster & Westminster
Local South London Specialists

Restoring period timber box frames in City of Westminster

At Eden Sash Windows, Charlie Burgess specialises in the meticulous repair of timber box frames for Victorian and Georgian properties throughout the City of Westminster. Rather than advocating for unnecessary full replacements, we focus on structural restoration by splicing in seasoned timber to decayed pulley stiles and rebuilding rotten sills. Our approach preserves the original architectural integrity of your home while ensuring the box frame remains weather-proof and secure.

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Westminster

Timber Box Frame Repair in City Of Westminster And Across Westminster

Ashford Banstead Borehamwood Caterham Chigwell City Of London City Of Westminster Epsom Esher Ewell Leatherhead London Sunbury-On-Thames Swanley Walton-On-Thames Warlingham Weybridge
Box Frame Repair by Eden Sash Windows
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Box Frame Repair

Precision joinery repairs to original timber box frames, pulley stiles, and outer linings. We splice in durable seasoned timber to preserve original plasterwork and exterior brick reveals.

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Rotten Sill Repair by Eden Sash Windows
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Rotten Sill Repair

Surgical timber splicing and sub-sill reconstruction for decayed Victorian and Georgian sashes. We excise wet rot and splice matching seasoned timber profiles without removing the frame.

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Sash Draught Proofing by Eden Sash Windows
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Sash Draught Proofing

Concealed brush pile systems machined into new parting beads, staff beads, and meeting rails. Eliminates rattles, stops draughts, and dampens external South London street noise.

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Architectural Timber Restoration

Preserving Original Box Frames With Precision Joinery.

Spliced timber repair on a period sash window box frame and sill
FENSA Registered Joinery Rebuilding decayed sills and pulley stiles in situ without disturbing interior plaster or exterior brickwork.
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Our technical approach to timber splicing and sill repair

We use high-quality hardwood splices and traditional joinery techniques to address rot caused by water ingress, which is frequently found in the lower sections of the frame. By cutting away decayed timber and replacing it with durable, primed material, we can often salvage original box frames that others might suggest replacing. This method keeps your window in its original brick reveal and protects the existing interior plasterwork.

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Do your heritage windows meet conservation standards?

Whether your property sits within a strict conservation area in the City of Westminster or you occupy a period villa with heritage constraints, our work is designed to comply with local planning requirements. We focus on maintaining authentic sightlines and profile dimensions, ensuring that any restoration work sits seamlessly alongside the original joinery of your building.

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Reliable restoration from a FENSA registered specialist

Every project is managed with an eye for the specific vernacular of South West London joinery. As a FENSA registered specialist, we provide the peace of mind that your home improvements meet current building standards. We carry 2 million pounds in public liability insurance and offer a 10-year guarantee on new bespoke timber installations, ensuring our repairs are built for the long term.

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How to arrange a survey or urgent repair

For homeowners facing structural decay or persistent draughts in their sash frames, we provide a detailed, on-site survey followed by a clear, fixed written quotation. If you require urgent assistance with a dropped sash, broken glass, or a severely damaged frame, call 020 7046 0157 for same-day emergency support within our 15-mile service radius, available Monday to Saturday between 08:00 and 18:00.

Heritage Joinery Standards

Why Choose Eden Sash Windows?

Architectural timber sash restoration and box frame repairs led by Charlie Burgess, protecting original Victorian and Georgian joinery across Westminster and South West London.

Conservation-First Philosophy

We retain historic box frames in situ behind exterior brick reveals, preserving original fabric and avoiding unnecessary disruptions to interior plaster or pointing.

FENSA Registered & Insured

Directed by Charlie Burgess with full FENSA registration and £2m public liability insurance, ensuring all timber restoration complies with current building standards.

Durable Timber Splicing

Rotten sub-sills and decayed pulley stiles are cut back to sound wood and spliced with seasoned hardwoods or Accoya, fully sealed against moisture ingress.

Clear Surveys & 10-Yr Guarantee

Every project begins with a comprehensive physical assessment and transparent fixed quotation, backed by a 10-year guarantee on all new bespoke timber joinery.

Bespoke timber multi-pane sash bay window installed on a Victorian brick townhouse
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Sash window installation Services Across South London: 020 7046 0157

Local Reputation

Client Feedback on Our Timber Sash Joinery

Read genuine homeowner experiences across Battersea, Wandsworth, Clapham, and South West London. Charlie Burgess oversees every timber sash restoration, draught-proofing project, and bespoke FENSA-certified installation to ensure historical fidelity and thermal performance.

Verified Client

"Charlie replaced some of the wooden frames in our porch which were rotten. He did an excellent job and we are extremely happy with the result. He ands his apprentice were very friendly polite and tidy. It was difficult conditions as it was raining but they were great. Would definitely recommend"

Jane Scoon

Google Verified Review
Verified Client

"We are very happy with Eden Joinery's work: we had a completely new sash fitted, and four sashes fitted into our existing frames. Our windows look fantastic - and no more draughts! Terry and son were courteous, tidy, with competitive rates, and took obvious pride in their work. They went the extra mile to fix a problem with one of our frames, and all windows were finished to a high standard. We would not hesitate to recommend them."

Julie Clayton

Google Verified Review
Verified Client

"Terry and his team did a great job fitting two new sash windows in our house. The windows and work done was all to a high standard, on time and reasonably priced."

Angela Sherratt

Google Verified Review
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Box Frame Repair FAQs

Frequently Asked Questions

Expert advice from Charlie Burgess on timber box frame repairs, sill splicing, and sash restoration across South London.

Can you repair a box frame if the sill has completely rotted through?

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Yes. Rotten sills are one of the most common issues we fix across Wimbledon and Kingston. We cut out the decayed section and splice in a new hardwood or Accoya sill. This is far more cost-effective than a full replacement and protects the rest of the frame from further moisture ingress.

How do I know if my sash windows need a repair or a full replacement?

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During a survey, we check the "heart" of the timber. If the rot is confined to the sills or the bottom of the sash stiles, a repair is usually the best route. If the entire box frame has lost its structural integrity or has been badly distorted over time, we may recommend a new bespoke timber installation.

Is draught proofing included in a box frame restoration?

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While it is a separate service, we highly recommend draught-proofing during any restoration. It involves machining hidden grooves for brush seals, which is much easier to do when the sashes are already removed for cord replacement or timber repairs.

Will I need planning permission for timber box frame repairs in a conservation area?

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Generally, like-for-like repairs do not require planning permission as you are maintaining the existing fabric of the building. However, if you are changing from single to double glazing in a listed building or an Article 4 area, you may need consent. Charlie Burgess can advise you on the specific requirements for your borough, whether you are in Wandsworth, Lambeth, or Richmond.

How long does it take to repair a single timber box frame?

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Most standard repairs and overhauls are completed within a day. This includes removing the sashes, repairing the timber, replacing the cords, and re-hanging the windows so your home is secure and weatherproof by the evening.

Are your timber repairs guaranteed?

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All our work is carried out to the highest trade standards. New bespoke timber windows come with a 10-year guarantee and FENSA certification, giving you peace of mind that your investment in your home’s heritage is protected.

Still have questions? Speak directly with our South London Sash window installation team today.

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Service Territory

Specialist Timber Sash Window Services Across South West London & Surrey

Based in Battersea (SW8), Director Charlie Burgess delivers bespoke timber sash window installation, heritage restoration, draught-proofing, and double glazing within a 15-mile radius across South West London and Surrey.

Key Local Catchment Areas

Battersea & Wandsworth

  • SW8 & SW11: Battersea Park, Shaftesbury Estate
  • SW4 & SW12: Clapham Common, Balham, Nightingale
  • SW18: Wandsworth Town, Southfields, Earlsfield
  • SW17: Tooting Bec, Tooting Broadway, Furzedown
  • SW15: Putney, Roehampton, Putney Heath
  • + All Wandsworth Article 4 conservation zones

Lambeth, Richmond & Surrey

  • Lambeth: Kennington, Stockwell & Brixton
  • Richmond: Richmond Green, Kew & Twickenham
  • Merton: Wimbledon Village, Raynes Park
  • Kingston: Surbiton, Coombe & New Malden
  • Surrey: Esher, Thames Ditton, Long Ditton
  • + All areas within 15 miles of SW8 base

Heritage Joinery Standards

  • Authentic Victorian & Georgian sightlines
  • A-rated double-glazed units
  • Concealed perimeter draught-proofing
  • Durable sill splicing & box frame restoration
  • FENSA registered with a 10-year guarantee
Detailed Sash Survey

Book with Charlie Burgess

Arrange a comprehensive inspection written quotation for sash repair, restoration, or bespoke installation.

Call: +442070460157

Working cleanly within Controlled Parking Zones and conservation areas across South West London and Surrey. For emergency sash repairs or broken glass, call 020 7046 0157 (Mon–Sat, 08:00–18:00).

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City Of Westminster

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Call or Email Our City Of Westminster Team

Phone Directly 020 7046 0157
Email Inquiry info@edensashwindows.co.uk