How much do security double-glazed units cost in Central London?
Typical prices for security double-glazed units in Central London are £174 to £594 including VAT (£145 to £495 plus VAT) per unit, supplied and fitted. Use the quote tool for a guide figure, then we survey and confirm a fixed price.
A security double-glazed unit is a sealed unit in which one or both panes are laminated glass, usually the inner pane, so the window keeps its insulation but resists being broken through. It fits the same frame as a standard unit and is the simplest way to add security to modern windows and doors.
Specification at a glance
- Laminated inner pane, outer pane or both
- Low-E coating and argon fill for insulation
- Obscure and decorative glass for bathrooms and doors
- Warm-edge spacer bars in black, grey or white
- 24 mm, 28 mm and other overall thicknesses to suit frames
- Toughened outer pane where safety glass is required
Fitting in Central London and nearby
We arrange surveys and fitting across Central London and the EC1A postcode district, and in nearby Pimlico (1 mile), Islington (2 miles) and Camden Town.
Greater London has every kind of glazing, from Georgian sashes and Victorian bays in conservation areas to high-street shopfronts, office curtain walling and new-build flats.
Typical places for security double-glazed units:
- Replacing misted or damaged units
- Glazed back and side doors
- Windows in flats on walkways and balconies
- Ground-floor and basement windows
Things to decide before you order
Energy performance
Choosing low-E glass, argon and warm-edge spacers keeps the window as efficient as possible, often better than the unit being replaced.
Overall thickness
The new unit must suit the frame's glazing rebate. If your frames only take thin units, we use thinner laminates or adjust the beads.
Rules that apply in England
Security rules for new homes
Approved Document Q has applied to new homes in England since 1 October 2015. Easily accessible doors and windows, meaning any part within 2 m vertically of the ground or another accessible surface, should meet PAS 24 or an equivalent, and glazing in doors and in windows within 400 mm of a door should be laminated to at least BS EN 356 P1A. It does not apply when you change the glass in an existing home, although it is a sensible benchmark.
Safety glass in critical locations
In England, section 5 of Approved Document K treats glazing in doors and in side panels within 300 mm of a door edge, from floor level up to 1,500 mm, and any other glazing below 800 mm, as a critical location. Glass there should break safely, be robust, or be guarded. Laminated or toughened glass meeting BS EN 12600 class 3 is the usual answer, rising to class 2 for door and side-panel panes wider than 900 mm.
How it works
- Tell us about the glazing
- Survey, measuring and frame check
- Written quote naming the glass
- Fitting and handover
Security double-glazed units in Central London: questions
Do you cover Pimlico as well as Central London?
Yes. As well as Central London, we can arrange surveys in nearby Pimlico, Islington and Camden Town. Dates depend on installer availability.
Do security units reduce noise?
Laminated glass already damps sound better than plain glass, and acoustic interlayers improve it further, which helps on busy roads.
How long do new units take?
Units are made to order after the survey. Lead times vary with glass type and size, and we confirm them when we quote.
Which pane should be laminated?
Usually the inner pane, so smashing the outer pane does not create an opening. On doors and low panes the outer pane is normally toughened to meet safety rules.
Security double-glazed units in nearby towns
Other glazing in Central London
- Security glazed doors and screens
- Laminated roof and conservatory glass
- Kiosk and booth security glazing
- Laminated glass retrofit
- Commercial reglazing
- Security glass for doors
Get a guide price now and book your free survey in Central London.