Security double-glazed units in Cardiff: what will it cost?
Expect £174 to £594 including VAT (£145 to £495 plus VAT) per unit for security double-glazed units in Cardiff. The written quote names the glass makeup, the price and the lead time before you commit.
A security double-glazed unit is a sealed unit in which one or both panes are laminated glass, usually the inner pane, so the window keeps its insulation but resists being broken through. It fits the same frame as a standard unit and is the simplest way to add security to modern windows and doors.
Glass and fitting options
- Toughened outer pane where safety glass is required
- Security glazing tape or clips where beads are external
- Made to measure for each sash, light and door panel
- Warm-edge spacer bars in black, grey or white
- Low-E coating and argon fill for insulation
- Obscure and decorative glass for bathrooms and doors
Fitting in Cardiff and nearby
Surveys in Cardiff (CF10) are booked around installer availability, as they are in nearby Penarth (3 miles) and Caerphilly (7 miles).
South Glamorgan covers Cardiff's city-centre arcades, offices and Bay waterfront, Victorian terraces in Canton and Roath, and the coastal towns of Barry and Penarth.
Typical settings for security double-glazed units:
- Glazed back and side doors
- Patio doors and bifolds
- Replacing misted or damaged units
- Ground-floor and basement windows
Getting the right glass for your building
Which pane is laminated
Laminating the inner pane is the usual security choice. Laminating both panes adds protection on high-risk elevations.
Overall thickness
The new unit must suit the frame's glazing rebate. If your frames only take thin units, we use thinner laminates or adjust the beads.
What the rules say in Wales
Listed buildings and conservation areas
Listed buildings in Wales need listed building consent from the local planning authority for works that affect their character, which can include replacing historic glass, glazing bars or sashes. Cadw advises on the historic environment in Wales. Reversible options such as secondary glazing are often easier to agree, but the council decides.
Replacing glass in an existing frame
Welsh Government guidance says building regulations have applied to replacement glazing since 1 April 2002, which covers replacing windows and doors. Swapping only the glass or a sealed unit in an existing frame is generally treated as a repair. New glass in a critical location should still be safety glass, and the council's building control team can confirm anything unclear.
How it works
- Postcode and a few photos
- On-site survey
- Fixed written price and lead time
- Fit, check and explain
Security double-glazed units in Cardiff: questions
Can you survey in Cardiff and nearby towns?
Yes. Surveys in Cardiff, Penarth and Caerphilly are booked around installer availability.
Do security units reduce noise?
Laminated glass already damps sound better than plain glass, and acoustic interlayers improve it further, which helps on busy roads.
Can I just replace the glass and keep my frames?
Yes, if the frames are sound. We measure each unit, make security units to the same size and fit them into your existing frames.
How long do new units take?
Units are made to order after the survey. Lead times vary with glass type and size, and we confirm them when we quote.
Security double-glazed units in nearby towns
Other glazing in Cardiff
- Security glass for doors
- Anti-ram-raid glazing
- Safety glazing for schools and public buildings
- Security glazed doors and screens
- Toughened safety glass
- Blast-resistant glazing
Start with a guide price online, then we survey and fix the price in writing.