How much should I budget for security secondary glazing in Islington?
Budget £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window for security secondary glazing in Islington, supplied and fitted. Larger panes, thicker makeups and difficult access cost more; the price is fixed in writing after the survey.
Security secondary glazing is a separate slim window fitted on the room side of an existing window, glazed with laminated glass so it forms a second barrier. It leaves the original window untouched outside, which makes it a common choice for listed buildings, conservation areas and period sash windows.
Choices you can make
- Locks and catches that open from inside without a key
- Low-E glass for better insulation
- Suits sash, casement and arched openings
- Laminated glass in slim aluminium frames
- Noise and draught reduction
- Fixed within the reveal, leaving the original window untouched
Fitting in Islington and nearby
We can arrange security secondary glazing anywhere in Islington, and in nearby Highbury, Holloway and Camden Town. Tell us your postcode and we will offer dates.
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.
Common uses:
- Homes on busy roads wanting noise reduction
- Offices in historic buildings
- Ground-floor flats in converted townhouses
- Listed homes and buildings in conservation areas
What to think about first
Listed building consent
Internal secondary glazing is usually seen as reversible, but consent can still be needed. Check with the conservation officer first.
Escape and ventilation
On windows used for escape, the secondary glazing must open quickly from inside without a key or tool.
Consents and safety: England
Listed buildings and conservation areas
In England, listed building consent from the council may be needed to replace historic glass such as crown or cylinder glass, or to alter glazing bars, sashes and frames. Historic England publishes guidance on traditional windows. Secondary glazing and window film are often easier to agree because they can be removed later, but the council's conservation officer makes the decision.
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 Islington address
- Fixed price in writing
- Glass made, then fitted
Security secondary glazing in Islington: questions
Which areas near Islington do you cover?
We can arrange work in Islington and in nearby Highbury (1 mile), Holloway (1 mile) and Camden Town (2 miles). Dates depend on installer availability.
Will secondary glazing cause condensation?
A well-fitted unit usually reduces condensation on the inner pane. Some ventilation of the gap may be needed, which we discuss at the survey.
Is secondary glazing safe for escape windows?
It can be, as long as it opens quickly from inside without a key. We design catches and handles for that.
Do I need permission for secondary glazing in a listed building?
It depends on the building and the council. Internal secondary glazing usually has less impact than replacement windows, but listed building consent may still be needed. Ask the conservation officer before ordering.
Security secondary glazing in nearby towns
Other glazing in Islington
- Toughened safety glass
- Glazing bead security upgrades
- Security glass for doors
- Security glass for home windows
- Safety glazing for schools and public buildings
- Misted unit replacement with laminated glass
Ready for a price? Use the form or call 0800 088 6248.