How much should I budget for security secondary glazing in Plymouth?
As a guide, security secondary glazing costs £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window. Because work in Plymouth is arranged individually, we confirm the full price, including any travel, in writing first.
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 you can specify
- Suits sash, casement and arched openings
- Fixed within the reveal, leaving the original window untouched
- Colour-matched frames to suit the room
- Locks and catches that open from inside without a key
- Noise and draught reduction
- Low-E glass for better insulation
Fitting in Plymouth
Work in Plymouth (PL1) is arranged individually. Send your postcode, sizes and a photo, and we will confirm what is possible and when.
Devon spans Exeter's Georgian and post-war centre, Plymouth's rebuilt 1950s shopping streets and waterfront offices, and seaside towns where sea air is hard on window frames and seals.
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.
Frame colour and sightlines
Slim frames that line up with the existing meeting rails make the secondary glazing almost invisible from outside.
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
- Send sizes, photos and your postcode
- We confirm what is possible and when
- Fixed price in writing
- Glass made, delivered and fitted
Security secondary glazing in Plymouth: questions
Can you work in Plymouth?
Work in Plymouth is arranged individually because of travel. Send your postcode and details and we will confirm what is possible.
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.
Does secondary glazing reduce noise?
Yes, often noticeably, because of the air gap between the two panes. Laminated glass helps further.
Can I still open my sash windows?
Yes. Secondary glazing slides, hinges or lifts out so the original window can be opened and cleaned.
Other glazing in Plymouth
- Broken glass replacement
- Security glass for doors
- Security glass for home windows
- Commercial reglazing
- Counter and reception security screens
- Safety glazing for schools and public buildings
Send sizes and photos with the form, or call 0800 088 6248.