How much does security secondary glazing cost in Hounslow?
Expect £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window for security secondary glazing in Hounslow. The written quote names the glass makeup, the price and the lead time before you commit.
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
- Colour-matched frames to suit the room
- Vertical sliding, horizontal sliding, hinged and lift-out styles
- Fixed within the reveal, leaving the original window untouched
- Locks and catches that open from inside without a key
- Noise and draught reduction
- Suits sash, casement and arched openings
Fitting in Hounslow and nearby
We can arrange security secondary glazing anywhere in Hounslow, and in nearby Isleworth, Heston and Richmond. 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.
Typical places for security secondary glazing:
- Listed homes and buildings in conservation areas
- Homes on busy roads wanting noise reduction
- Ground-floor flats in converted townhouses
- Offices in historic buildings
Things to decide before you order
Listed building consent
Internal secondary glazing is usually seen as reversible, but consent can still be needed. Check with the conservation officer first.
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
Planning permission
Changing the glass in an existing window or shopfront does not usually need planning permission, because the building looks much the same afterwards. A new or altered shopfront, or security features added to the outside of a building, may need planning permission from the council. Bollards or barriers on the pavement need the highway authority's consent, which is normally the council.
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.
How it works
- Send sizes or use the quote tool
- Free survey at your Hounslow address
- Fixed price in writing
- Glass made, then fitted
Security secondary glazing in Hounslow: questions
Which areas near Hounslow do you cover?
We can arrange work in Hounslow and in nearby Isleworth (1 mile), Heston (1 mile) and Richmond (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.
Does secondary glazing reduce noise?
Yes, often noticeably, because of the air gap between the two panes. Laminated glass helps further.
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 Hounslow
- Security glass for doors
- Security glazed doors and screens
- Display case security glass
- Counter and reception security screens
- Laminated glass retrofit
- Laminated security glass
Ready for a price? Use the form or call 0800 088 6248.
