Security double-glazed units in March

What should security double-glazed units cost in March?

Typical prices for security double-glazed units in March 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.

Glass and fitting options

Security glazing tape or clips where beads are external
Toughened outer pane where safety glass is required
Made to measure for each sash, light and door panel
Laminated inner pane, outer pane or both
Warm-edge spacer bars in black, grey or white
24 mm, 28 mm and other overall thicknesses to suit frames

Fitting in March and nearby

From the PE15 district we also cover Wisbech (8 miles) and Peterborough (14 miles). Survey dates depend on installer availability.

Cambridgeshire has listed college streets and shopfronts in Cambridge and Ely, Peterborough's Victorian terraces and modern retail, and science-park offices with large glazed facades.

Good candidates for security double-glazed units:

Ground-floor and basement windows
Windows in flats on walkways and balconies
Patio doors and bifolds
Glazed back and side doors

Before the glass is ordered

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.

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.

Glazing rules 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

Postcode and a few photos
On-site survey
Fixed written price and lead time
Fit, check and explain

Security double-glazed units in March: questions

Can you survey in March and nearby towns?

Yes. Surveys in March, Wisbech and Peterborough are booked around 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.

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.

Can I just replace the glass and keep my frames?

Yes, if the frames are sound. We measure each unit, make security units to the same size and fit them into your existing frames.

Security double-glazed units in nearby towns

Other glazing in March

Start with a guide price online, then we survey and fix the price in writing.