How much should I budget for security secondary glazing in Trowbridge?
As a guide, allow £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window for security secondary glazing in Trowbridge, 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.
Specification at a glance
- Noise and draught reduction
- Laminated glass in slim aluminium frames
- Suits sash, casement and arched openings
- Colour-matched frames to suit the room
- Fixed within the reveal, leaving the original window untouched
- Low-E glass for better insulation
Fitting in Trowbridge and nearby
Whether you are in central Trowbridge or at the edge of the BA14 district, we can arrange a survey. Nearby Melksham and Bath are covered too.
Wiltshire combines Salisbury's medieval and Georgian centre, Swindon's modern town centre, offices and estates, and stone market towns such as Marlborough, Devizes and Bradford-on-Avon.
Common uses:
- Listed homes and buildings in conservation areas
- Ground-floor flats in converted townhouses
- Period sash windows with original glass
- Offices in historic buildings
What to think about first
Listed building consent
Internal secondary glazing is usually seen as reversible, but consent can still be needed. Check with the conservation officer first.
Escape and ventilation
On windows used for escape, the secondary glazing must open quickly from inside without a key or tool.
Consents and safety: 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.
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.
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 Trowbridge: questions
Do you cover Melksham as well as Trowbridge?
Yes. As well as Trowbridge, we can arrange surveys in nearby Melksham, Bath and Frome. Dates depend on installer availability.
Does secondary glazing reduce noise?
Yes, often noticeably, because of the air gap between the two panes. Laminated glass helps further.
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 Trowbridge
- Laminated security glass
- Security double-glazed units
- Bullet-resistant glass
- Commercial reglazing
- Glazing bead security upgrades
- Laminated roof and conservatory glass
Get a guide price now and book your free survey in Trowbridge.