Security double-glazed units in Cornwall: what will it cost?
Expect £174 to £594 including VAT (£145 to £495 plus VAT) per unit for security double-glazed units in Cornwall. 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.
Choices you can make
- Laminated inner pane, outer pane or both
- 24 mm, 28 mm and other overall thicknesses to suit frames
- Low-E coating and argon fill for insulation
- Toughened outer pane where safety glass is required
- Warm-edge spacer bars in black, grey or white
- Security glazing tape or clips where beads are external
Covering Cornwall
We can arrange surveys and fitting anywhere in Cornwall, including Redruth and Falmouth. Dates depend on installer availability. Choose your town below for local details.
Cornwall's granite and slate cottages, harbourside shops and holiday lets face salt-laden coastal weather, and towns such as Truro, Falmouth and St Ives have conservation areas in their centres.
Typical settings for security double-glazed units:
- Ground-floor and basement windows
- Glazed back and side doors
- Patio doors and bifolds
- Windows in flats on walkways and balconies
Towns in Cornwall
Getting the right glass for your building
Internal or external beads
If your beads are on the outside, we add security tape or clips so the unit cannot be lifted out after the beads are removed.
Energy performance
Choosing low-E glass, argon and warm-edge spacers keeps the window as efficient as possible, often better than the unit being replaced.
What the rules say in England
Security rules for new homes
Approved Document Q has applied to new homes in England since 1 October 2015. Easily accessible doors and windows, meaning any part within 2 m vertically of the ground or another accessible surface, should meet PAS 24 or an equivalent, and glazing in doors and in windows within 400 mm of a door should be laminated to at least BS EN 356 P1A. It does not apply when you change the glass in an existing home, although it is a sensible benchmark.
Safety glass in critical locations
In England, section 5 of Approved Document K treats glazing in doors and in side panels within 300 mm of a door edge, from floor level up to 1,500 mm, and any other glazing below 800 mm, as a critical location. Glass there should break safely, be robust, or be guarded. Laminated or toughened glass meeting BS EN 12600 class 3 is the usual answer, rising to class 2 for door and side-panel panes wider than 900 mm.
How it works
- Send sizes or use the quote tool
- Free survey at your Cornwall address
- Fixed price in writing
- Glass made, then fitted
Security double-glazed units in Cornwall: questions
Which towns in Cornwall do you cover?
We can arrange work anywhere in Cornwall, including Redruth, Falmouth, St Austell, Truro and Camborne, and in other towns across the area.
Which pane should be laminated?
Usually the inner pane, so smashing the outer pane does not create an opening. On doors and low panes the outer pane is normally toughened to meet safety rules.
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.
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.
Other glazing in Cornwall
- Patio and bifold door security glass
- Security secondary glazing
- Security window film
- Security glass for home windows
- Bullet-resistant glass
- Security glass for doors
Ready for a price? Use the form or call 0800 088 6248.