What is the price of security double-glazed units in Welwyn Garden City?
Expect £174 to £594 including VAT (£145 to £495 plus VAT) per unit for security double-glazed units in Welwyn Garden City. 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.
Options for security double-glazed units in Welwyn Garden City
- Toughened outer pane where safety glass is required
- Laminated inner pane, outer pane or both
- Obscure and decorative glass for bathrooms and doors
- Security glazing tape or clips where beads are external
- 24 mm, 28 mm and other overall thicknesses to suit frames
- Made to measure for each sash, light and door panel
Fitting in Welwyn Garden City and nearby
Welwyn Garden City is about 13 miles from Watford, the main centre for Hertfordshire. We can survey and fit across the AL8 district and in nearby places such as Hatfield and Hertford.
Hertfordshire includes the historic centres of St Albans and Hertford, post-war new towns such as Stevenage and Hatfield, and Watford's shops and office parks along the M1.
This glazing suits:
- Replacing misted or damaged units
- Ground-floor and basement windows
- Glazed back and side doors
- Windows in flats on walkways and balconies
Questions we will ask at the survey
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.
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.
Building regulations and safety 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.
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
- Postcode and a few photos
- On-site survey
- Fixed written price and lead time
- Fit, check and explain
Security double-glazed units in Welwyn Garden City: questions
Which areas near Welwyn Garden City do you cover?
We can arrange work in Welwyn Garden City and in nearby Hatfield (3 miles), Hertford (6 miles) and St Albans (6 miles). Dates depend on installer availability.
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.
Will a laminated unit be heavier?
A little. A laminated pane weighs about the same as a solid sheet of the same thickness. On large opening sashes we check hinges and friction stays.
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.
Security double-glazed units in nearby towns
Other glazing in Welwyn Garden City
- Security secondary glazing
- Kiosk and booth security glazing
- Safety glazing for schools and public buildings
- Display case security glass
- Security glass for doors
- Anti-bandit glass
Start with a guide price online, then we survey and fix the price in writing.