Sliding Doors: What to Look For Before You Buy
Most sliding door quotes look alike until you compare the sightlines, the threshold and the track. Those three details decide how the doors look…
Heritage window specialists · Within the M25
Heritage sash windows for London's period homes, made the way they were made.
Genuine linseed oil putty glazing and true through glazing bars — bespoke windows and doors in timber and aluminium, made to measure across the capital.
Free, no-obligation quote and advice
- Genuine linseed oil putty glazing
- True through glazing bars
- FENSA registered · 42165
Windows Store Ltd
We make windows for buildings that were never meant to have modern ones.
Heritage sash windows for London's period homes — made to measure, fitted inside the M25.
- We make
- Box sash, casement and timber glazing
- For
- Conservation areas and listed buildings
- Glazing
- Bedded in linseed oil putty. Not a bead shaped to look like it.
- Bars
- Solid timber through the glass. Not strips stuck on top.
- Fitted by
- Our own team, in the trade since 2016
- Registered
- FENSA 42165
The difference
Most heritage windows only look the part.
The industry bonds timber strips to a single sheet of glass, then shapes the beading to imitate putty. It passes at a glance. It doesn't pass up close.
Applied glazing bars
One continuous sheet of glass. The bars are bonded on — the panes aren't real.
True divided lights
Six separate panes, each bedded in linseed oil putty.
Why it matters
Councils accept it
Conservation guidance favours traditional putty and treats applied timber beads as unwelcome — often the difference between consent and refusal.
It can be repaired
Putty is renewed with a knife and a brush. A bonded bead cannot be repaired — when it lifts, it is replaced.
It looks right
A real bar casts a real shadow and breaks the reflection. Applied bars leave a flat, mirrored sheet — the reason new windows so often look wrong on an old house.
What we make
Bespoke timber windows and doors for London's period homes.
Made to measure, fitted by our own team, across every postcode inside the M25.
- Timber Sash Windows
Box sash and sliding sash, made the traditional way — putty-glazed, with true through glazing bars.
- Conservation Area Windows
Like-for-like replacements that satisfy Article 4 directions and conservation officers.
- Listed Building Windows
Grade I, II* and II — slim-line glazing set within historic bar profiles.
How we make them
- Linseed Oil Putty Glazing
Bedded and sealed by hand — not a timber bead shaped to imitate putty.
- Slim-Line Conservation Glazing
Thin enough for a historic glazing bar. Warm enough for a modern home.
- Accoya, Oak & Sapele Timber
Accoya carries a 50-year manufacturer's above-ground anti-rot warranty.
Also made to measure
Areas we cover
We work across every postcode inside the M25, with a particular focus on London's conservation areas and listed buildings.
- Islington
- Kensington & Chelsea
- Westminster
- Camden
- Hammersmith & Fulham
- Wandsworth
- Richmond upon Thames
- Hackney
- Lambeth
- Ealing
- Hounslow
- Barnet
How we work
From first enquiry to FENSA certificate.
Nothing is made until the specification is agreed. Nothing is fitted by anyone but us.
01
Enquiry
Free, no-obligation quote and advice.
02
Survey
We measure — and check what the council will expect.
03
Specification
Timber, glazing and bar profile agreed in writing.
04
Manufacture
Timber 4–6 weeks. Aluminium 4–7. uPVC 2–4.
05
Installation
Our own fitting team. No subcontractors.
06
Certification
FENSA certificate — you'll need it when you sell.
Also from the same workshop
Aluminium windows, doors and glazed extensions
Bifolds, sliding doors and glazed extensions — and aluminium windows too, in casement and sash styles as well as the usual systems. Slim frames and large spans, from the same team that restores the front of the house.
See aluminium →Our work
Recent work across London.
Windows, doors and glazing — from period homes to modern extensions, in conservation areas and beyond.
Guides
Read before you decide.
Plain answers on windows, doors, planning and cost — written by the people who make and fit them.
French Doors, Bifolds or Sliding: Which Suits Your Room?
French doors suit smaller openings and period houses, where two hinged leaves look right and cost less than the alternatives. Bifolds open a wall…
Aluminium or Timber Windows: Which Is Right for Your House?
Aluminium gives you the slimmest frames and the least maintenance, which is why it suits large openings and modern extensions. Timber suits period…
After we've finished
A window is a thirty-year decision.
Most of what matters happens after the scaffolding comes down.
What stands behind the work
Windows Store Ltd
- Insurance-backed guaranteeWindows and installation, underwritten
- 5 years
- Accoya timber warrantyManufacturer's above-ground anti-rot cover
- 50 years
- FENSA certificateThe document a buyer's solicitor asks for
- 42165
- AftercareYou call us, not whoever fitted it
- In-house
For the trade
Windows made to your drawing, delivered to your site.
Supply-only timber windows for builders, contractors and architects. Made to your drawings, wrapped, labelled and delivered across the M25 — ready for your team to install.
Trade supply →Common questions
The things people ask before they call us.
