Timber Sash Window Restoration, Repair & Bespoke Joinery Services
Run by Director Charlie Burgess from our workshop in Battersea (SW8), Eden Sash Windows delivers careful, conservation-compliant restoration, precision draught-proofing, rotten timber splicing, and bespoke double glazing across South West London and Surrey within a 15-mile radius.
Restoring original timber sashes to effortless, draught-free operation.
At Eden Sash Windows, we work exclusively with traditional timber sliding sash windows and box frames. Rather than removing irreplaceable 19th-century architectural joinery, our primary ethos is conservation: we splice in matching seasoned timber, rebuild wet-rotted sills, clear paint-bound pulley wheels, and rebalance counterweights.
Where properties demand modern thermal efficiency, acoustic insulation from South West London traffic, or full replacement, we manufacture authentic timber sashes fitted with vacuum or warm-edge double glazing that satisfies local conservation officers in Wandsworth, Lambeth, Richmond, and Merton.
Complete Timber Sash Window Services
From single cord repairs to full street-facing bespoke double-glazed replacements, explore our dedicated services tailored to Victorian, Georgian, and Edwardian properties.
Sash Window Restoration
Full architectural overhaul of original timber windows. We release seized sashes, scrape paint build-ups, service pulleys, re-bed loose glass, and realign meeting rails without disturbing interior plaster or external brick reveals.
Timber Repair & Sill Splicing
Decayed sills and rotten lower box frames do not mean replacement is mandatory. We rout out soft timber back to solid heartwood, splicing in durable hardwood or Accoya sections bonded with specialist structural epoxy resin.
Draught-Proofing & Acoustic Sealing
Integrated concealed perimeter brush seals machined directly into newly fitted parting beads and staff beads. Completely eliminates annoying rattles and drafts while significantly cutting traffic noise from busy South West London streets.
Double Glazing Upgrades
Upgrade your thermal performance without thick modern units spoiling sightlines. We manufacture new hardwood sashes fitted with argon-filled, warm-edge double glazing that fit seamlessly within your original timber box frames.
Bespoke New Timber Sash Windows
Made-to-measure box frame and sliding sash installations built to exact original period specifications. Fully FENSA-certified, featuring precision-routed sash horns, traditional weights and pulleys, and protected by our 10-year guarantee.
Sash Cord Replacement & Rebalancing
When cords snap or windows drop suddenly, we open the access pockets, replace aged cords with heavy-duty wax-impregnated cotton cord, and rebalance cast iron or lead counterweights to ensure featherweight fingertip gliding.
Broken sash cord, dropped window, or cracked glass leaving your home exposed?
We provide same-day call-outs across South West London and Surrey to make your property secure and weather-tight. If an immediate bespoke repair cannot be finalised on the visit, the opening is securely boarded before permanent joinery work begins.
How Charlie Burgess Restores and Upgrades Your Timber Sashes
Every window project begins with a hands-on technical survey. We assess the physical condition of the box frames, structural stiles, top and bottom meeting rails, and sill assemblies before proposing the most sympathetic repair route.
Precision Timber Splicing
We never mask rot with standard filler. Decayed sections are cut clean and spliced with seasoned timber or Accoya, bonded with 2-part epoxy.
Heritage Glazing Profiles
Narrow profile glazing bars, true putty lines, and authentic horns ensure seamless planning compliance across conservation areas.
Draught Exclusion Channels
Machined parting and staff beads hold concealed polypropylene brush seals, preventing rattles without friction or sticking paint.
Counterweight Balancing
Sashes are re-weighted precisely with lead or cast iron counterweights to match the new glass mass, guaranteeing a smooth glide.
Conservation Area & Article 4 Compliance
Working across Wandsworth, Lambeth, Richmond upon Thames, Merton, Kingston upon Thames, and the Surrey border, we navigate strict local conservation regimes daily.
Wandsworth & Battersea
Specific Article 4 Directions protect the Shaftesbury Park Estate and Battersea Park Victorian terraces. We repair and replicate original two-over-two timber sashes, ensuring exact horn geometry and matching brick reveal installations.
Lambeth & Clapham Old Town
From Albert Square to Kennington, Georgian multi-pane arrangements (six-over-six) demand delicate sightlines and working internal shutters. We restore original boxes and supply ultra-slim heritage double glazing.
Richmond, Merton & Kingston
Edwardian and late Victorian riverside villas frequently feature intricate upper sash astragal bars and deep canted bay frames. Our timber repairs maintain structural integrity while eliminating penetrating damp.
Frequently Asked Questions
Do I need planning permission to repair or restore my timber sash windows?
Routine like-for-like repairs, cord replacement, rebalancing, and draught-proofing do not generally require planning permission or listed building consent. However, installing new replacement double-glazed sashes on a listed property or within an Article 4 conservation area (such as the Shaftesbury Estate in Wandsworth) requires compliance with local planning authority guidelines. Charlie Burgess provides detailed specifications to assist with any required permissions.
Can my original sash window box frames be saved if the bottom sill is rotten?
In the vast majority of cases, yes. It is rarely necessary to rip out the entire box frame. We routinely cut away decayed sill timber and the bottom corners of the pulley stiles, then splice in matching, pressure-treated hardwood or Accoya sections. These are bonded with structural epoxy resin, sanded flush, and sealed to provide a repair that often outlasts the surrounding original softwood.
How does your concealed draught-proofing system work?
We machine hidden carrier grooves into our new parting beads and staff beads, as well as along the meeting rails. Durable polypropylene brush seals are fitted into these channels. When the window is closed, the brushes seal all air gaps around the perimeter. This stops cold drafts and rattles, reduces street noise, and remains virtually invisible, preserving authentic period profiles.
Can you retrofit double glazing into existing timber box frames?
Yes. Depending on the condition and depth of your existing sashes, we can either re-rebate existing timber to take ultra-slim double-glazed units or manufacture brand-new timber sashes fitted with argon-filled units that sit neatly inside your retained original box frames. This keeps internal plasterwork intact and avoids external brick disturbance.
What guarantee do you offer on replacement joinery?
All new bespoke timber sash windows manufactured and installed by Eden Sash Windows carry a 10-year comprehensive guarantee. We are FENSA-registered, and our work is fully backed by £2m public liability insurance.
How quickly can you attend for an emergency repair?
We operate same-day emergency call-outs from Monday to Saturday, 08:00 to 18:00 (we are closed Sundays). Whether dealing with broken glass, snapped cords causing a sash to drop open, or storm damage, we attend promptly to weather-proof and secure the property before undertaking permanent timber repairs.
Book your detailed sash window survey and fixed quotation today.
Speak directly with timber sash specialist Charlie Burgess. We provide thorough on-site inspections across Battersea, Clapham, Wandsworth, Richmond, Wimbledon, and North Surrey.
Operating across South West London & Surrey within 15 miles of Battersea (SW8).