How much does security secondary glazing cost in New Malden?
As a guide, allow £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window for security secondary glazing in New Malden, supplied and fitted. Size, glass makeup, access and frame condition move the price, which is confirmed in writing after the free 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.
What goes into security secondary glazing
- Laminated glass in slim aluminium frames
- Locks and catches that open from inside without a key
- Noise and draught reduction
- Vertical sliding, horizontal sliding, hinged and lift-out styles
- Colour-matched frames to suit the room
- Fixed within the reveal, leaving the original window untouched
Fitting in New Malden and nearby
Surveys in New Malden (KT3) are booked around installer availability. We also cover nearby Surbiton (2 miles), Morden (3 miles) and Wimbledon (3 miles).
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.
Typical places for security secondary glazing:
- Homes on busy roads wanting noise reduction
- Listed homes and buildings in conservation areas
- Offices in historic buildings
- Ground-floor flats in converted townhouses
Things to decide before you order
Frame colour and sightlines
Slim frames that line up with the existing meeting rails make the secondary glazing almost invisible from outside.
How it opens
Match the opening style to the original window so both can be opened, cleaned and used for ventilation.
Rules that apply in England
Windows needed for escape
Approved Document B expects many habitable rooms in houses, particularly upstairs, to have an escape window with a clear opening of at least 0.33 m², at least 450 mm high and 450 mm wide, with the bottom of the opening no more than 1,100 mm above the floor. Changing the glass does not alter that, but locks, secondary glazing and film must not stop the window opening. Laminated glass is hard to break through, so escape always relies on the window opening.
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 New Malden address
- Fixed price in writing
- Glass made, then fitted
Security secondary glazing in New Malden: questions
Can you survey in New Malden and nearby towns?
Yes. Surveys in New Malden, Surbiton and Morden are booked around installer availability.
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.
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.
Can I still open my sash windows?
Yes. Secondary glazing slides, hinges or lifts out so the original window can be opened and cleaned.
Security secondary glazing in nearby towns
Other glazing in New Malden
- Safety glazing for schools and public buildings
- Display case security glass
- Broken glass replacement
- Security glass for home windows
- Security double-glazed units
- Kiosk and booth security glazing
Ready for a price? Use the form or call 0800 088 6248.