Security secondary glazing in Watford: what will it cost?
Our guide range for security secondary glazing in Watford 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.
What goes into security secondary glazing
- Suits sash, casement and arched openings
- Locks and catches that open from inside without a key
- Low-E glass for better insulation
- Colour-matched frames to suit the room
- Noise and draught reduction
- Fixed within the reveal, leaving the original window untouched
Fitting in Watford and nearby
Surveys in Watford (WD17) are booked around installer availability, as they are in nearby Bushey (2 miles) and Rickmansworth (4 miles).
Hertfordshire includes the historic centres of St Albans and Hertford, post-war new towns such as Stevenage and Hatfield, and Watford's shops and office parks along the M1.
Typical settings for security secondary glazing:
- Listed homes and buildings in conservation areas
- Homes on busy roads wanting noise reduction
- Period sash windows with original glass
- Offices in historic buildings
Getting the right glass for your building
How it opens
Match the opening style to the original window so both can be opened, cleaned and used for ventilation.
Escape and ventilation
On windows used for escape, the secondary glazing must open quickly from inside without a key or tool.
What the rules say in England
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.
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.
How it works
- Send sizes or use the quote tool
- Free survey at your Watford address
- Fixed price in writing
- Glass made, then fitted
Security secondary glazing in Watford: questions
Can you survey in Watford and nearby towns?
Yes. Surveys in Watford, Bushey and Rickmansworth are booked around 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 Watford
- Security glazed doors and screens
- Anti-bandit glass
- Kiosk and booth security glazing
- Safety glazing for schools and public buildings
- Blast-resistant glazing
- Laminated roof and conservatory glass
Ready for a price? Use the form or call 0800 088 6248.