Security double-glazed units in Stevenage

Security double-glazed units in Stevenage: what will it cost?

Our guide range for security double-glazed units in Stevenage is £174 to £594 including VAT (£145 to £495 plus VAT) per unit, including fitting. The survey is free for new installations and your fixed price follows in writing.

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

Obscure and decorative glass for bathrooms and doors
24 mm, 28 mm and other overall thicknesses to suit frames
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
Low-E coating and argon fill for insulation

Fitting in Stevenage and nearby

We can arrange security double-glazed units anywhere in Stevenage, and in nearby Hitchin, Letchworth Garden City and Welwyn Garden City. Tell us your postcode and we will offer dates.

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.

Typical settings for security double-glazed units:

Glazed back and side doors
Ground-floor and basement windows
Windows in flats on walkways and balconies
Replacing misted or damaged units

Getting the right glass for your building

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.

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

England

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.

Replacing glass in an existing frame

Replacing only the glass or sealed unit in an existing frame is generally treated as a repair in England rather than notifiable building work. Replacing a whole window or door is notifiable and is normally certified through a competent person scheme or approved by building control. Either way, new glass in a critical location should still be safety glass.

How it works

Guide price online or by phone
Survey in Stevenage
Accept the fixed quote
Fitted by glaziers working under our contract

Security double-glazed units in Stevenage: questions

Which areas near Stevenage do you cover?

We can arrange work in Stevenage and in nearby Hitchin (5 miles), Letchworth Garden City (5 miles) and Welwyn Garden City (7 miles). Dates depend on installer availability.

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.

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.

Security double-glazed units in nearby towns

Other glazing in Stevenage

Tell us about the glazing and we will come back with a guide price.