Security secondary glazing in Sunbury-on-Thames: what will it cost?
Our guide range for security secondary glazing in Sunbury-on-Thames 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 Sunbury-on-Thames
- Fixed within the reveal, leaving the original window untouched
- Noise and draught reduction
- Locks and catches that open from inside without a key
- Vertical sliding, horizontal sliding, hinged and lift-out styles
- Low-E glass for better insulation
- Colour-matched frames to suit the room
Fitting in Sunbury-on-Thames and nearby
Sunbury-on-Thames is about 13 miles from Guildford, the main centre for Surrey. We can survey and fit across the TW16 district and in nearby places such as Walton-on-Thames and Hampton.
Surrey's commuter towns such as Guildford, Woking and Epsom mix Victorian and inter-war houses with modern glazed offices, while Farnham and Godalming have extensive conservation areas.
Typical settings for security secondary glazing:
- Listed homes and buildings in conservation areas
- Ground-floor flats in converted townhouses
- Offices in historic buildings
- Period sash windows with original glass
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
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
- Postcode and a few photos
- On-site survey
- Fixed written price and lead time
- Fit, check and explain
Security secondary glazing in Sunbury-on-Thames: questions
Which areas near Sunbury-on-Thames do you cover?
We can arrange work in Sunbury-on-Thames and in nearby Walton-on-Thames (1 mile), Hampton (2 miles) and Hanworth (3 miles). Dates depend on 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.
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.
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.
Security secondary glazing in nearby towns
Other glazing in Sunbury-on-Thames
- Toughened safety glass
- Counter and reception security screens
- Security window film
- Security glazed doors and screens
- Laminated roof and conservatory glass
- Patio and bifold door security glass
Start with a guide price online, then we survey and fix the price in writing.
