How much do security double-glazed units cost in Sevenoaks?
Our guide range for security double-glazed units in Sevenoaks is £174 to £594 including VAT (£145 to £495 plus VAT) per unit, including fitting. The survey is free for new installations and your fixed price follows in writing.
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.
Glass and fitting options
- 24 mm, 28 mm and other overall thicknesses to suit frames
- Security glazing tape or clips where beads are external
- Laminated inner pane, outer pane or both
- Obscure and decorative glass for bathrooms and doors
- Toughened outer pane where safety glass is required
- Made to measure for each sash, light and door panel
Fitting in Sevenoaks and nearby
From the TN13 district we also cover Tonbridge (6 miles) and Swanley (9 miles). Survey dates depend on installer availability.
Kent ranges from Canterbury's listed city centre and the Regency fronts of Tunbridge Wells to the Medway towns, Ashford's growth estates and coastal Margate and Folkestone.
Typical places for security double-glazed units:
- Patio doors and bifolds
- Windows in flats on walkways and balconies
- Glazed back and side doors
- Ground-floor and basement windows
Things to decide before you order
Internal or external beads
If your beads are on the outside, we add security tape or clips so the unit cannot be lifted out after the beads are removed.
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.
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 Sevenoaks: questions
Can you survey in Sevenoaks and nearby towns?
Yes. Surveys in Sevenoaks, Tonbridge and Swanley are booked around installer availability.
Will a laminated unit be heavier?
A little. A laminated pane weighs about the same as a solid sheet of the same thickness. On large opening sashes we check hinges and friction stays.
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.
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.
Security double-glazed units in nearby towns
Other glazing in Sevenoaks
- Blast-resistant glazing
- Bullet-resistant glass
- Security window film
- Misted unit replacement with laminated glass
- Kiosk and booth security glazing
- Safety glazing for schools and public buildings
Get a guide price now and book your free survey in Sevenoaks.