Security double-glazed units in Sleaford

What is the price of security double-glazed units in Sleaford?

Guide prices for security double-glazed units in Sleaford are £174 to £594 including VAT (£145 to £495 plus VAT) per unit for supply and fitting. We confirm a fixed price in writing after a free survey, before any glass is ordered.

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.

What goes into security double-glazed units

Low-E coating and argon fill for insulation
Toughened outer pane where safety glass is required
Warm-edge spacer bars in black, grey or white
Security glazing tape or clips where beads are external
Laminated inner pane, outer pane or both
24 mm, 28 mm and other overall thicknesses to suit frames

Fitting in Sleaford and nearby

Surveys in Sleaford (NG34) are booked around installer availability. We also cover nearby Grantham (11 miles), Boston (16 miles) and Lincoln (17 miles).

Lincolnshire spans Lincoln's hilltop historic quarter, Georgian Stamford, market towns across the Wolds and Fens, and coastal resorts such as Skegness and Cleethorpes.

This glazing suits:

Replacing misted or damaged units
Ground-floor and basement windows
Windows in flats on walkways and balconies
Glazed back and side doors

Questions we will ask at the survey

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.

Which pane is laminated

Laminating the inner pane is the usual security choice. Laminating both panes adds protection on high-risk elevations.

Building regulations and safety in England

England

Replacing glass in an existing frame

Replacing only the glass or sealed unit in an existing frame is generally treated as a repair in England rather than notifiable building work. Replacing a whole window or door is notifiable and is normally certified through a competent person scheme or approved by building control. Either way, new glass in a critical location should still be safety glass.

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

Guide price online or by phone
Survey in Sleaford
Accept the fixed quote
Fitted by glaziers working under our contract