What should security double-glazed units cost in Boston?
Expect £174 to £594 including VAT (£145 to £495 plus VAT) per unit for security double-glazed units in Boston. The written quote names the glass makeup, the price and the lead time before you commit.
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
- Warm-edge spacer bars in black, grey or white
- Made to measure for each sash, light and door panel
- Security glazing tape or clips where beads are external
- 24 mm, 28 mm and other overall thicknesses to suit frames
- Toughened outer pane where safety glass is required
- Laminated inner pane, outer pane or both
Fitting in Boston and nearby
Surveys in Boston (PE21) are booked around installer availability. We also cover nearby Spalding (14 miles), Sleaford (16 miles) and Skegness (19 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.
Good candidates for security double-glazed units:
- Replacing misted or damaged units
- Glazed back and side doors
- Patio doors and bifolds
- Ground-floor and basement windows
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.
Which pane is laminated
Laminating the inner pane is the usual security choice. Laminating both panes adds protection on high-risk elevations.
Glazing rules in England
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.
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.
How it works
- Send sizes or use the quote tool
- Free survey at your Boston address
- Fixed price in writing
- Glass made, then fitted
Security double-glazed units in Boston: questions
Can you survey in Boston and nearby towns?
Yes. Surveys in Boston, Spalding and Sleaford are booked around installer availability.
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.
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.
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.
Security double-glazed units in nearby towns
Other glazing in Boston
- Laminated roof and conservatory glass
- Glazing bead security upgrades
- Laminated security glass
- Laminated glass retrofit
- Broken glass replacement
- Patio and bifold door security glass
Ready for a price? Use the form or call 0800 088 6248.