Security secondary glazing in Greenwich

What should security secondary glazing cost in Greenwich?

Our guide range for security secondary glazing in Greenwich is £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window, including fitting. The survey is free for new installations and your fixed price follows in writing.

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.

Options for security secondary glazing in Greenwich

Colour-matched frames to suit the room
Low-E glass for better insulation
Locks and catches that open from inside without a key
Vertical sliding, horizontal sliding, hinged and lift-out styles
Laminated glass in slim aluminium frames
Fixed within the reveal, leaving the original window untouched

Fitting in Greenwich and nearby

Greenwich is about 5 miles from Central London, the main centre for Greater London. We can survey and fit across the SE10 district and in nearby places such as Blackheath and Canary Wharf.

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.

Good candidates for security secondary glazing:

Ground-floor flats in converted townhouses
Offices in historic buildings
Period sash windows with original glass
Listed homes and buildings in conservation areas

Before the glass is ordered

Frame colour and sightlines

Slim frames that line up with the existing meeting rails make the secondary glazing almost invisible from outside.

Listed building consent

Internal secondary glazing is usually seen as reversible, but consent can still be needed. Check with the conservation officer first.

Glazing rules in England

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

Tell us about the glazing
Survey, measuring and frame check
Written quote naming the glass
Fitting and handover

Security secondary glazing in Greenwich: questions

Which areas near Greenwich do you cover?

We can arrange work in Greenwich and in nearby Blackheath (1 mile), Canary Wharf (2 miles) and Catford (2 miles). Dates depend on installer availability.

Can I still open my sash windows?

Yes. Secondary glazing slides, hinges or lifts out so the original window can be opened and cleaned.

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.

Security secondary glazing in nearby towns

Other glazing in Greenwich

Get a guide price now and book your free survey in Greenwich.