Security secondary glazing in Hertfordshire

Security secondary glazing in Hertfordshire: what will it cost?

As a guide, allow £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window for security secondary glazing in Hertfordshire, supplied and fitted. Size, glass makeup, access and frame condition move the price, which is confirmed in writing after the free survey.

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

Low-E glass for better insulation
Colour-matched frames to suit the room
Noise and draught reduction
Vertical sliding, horizontal sliding, hinged and lift-out styles
Fixed within the reveal, leaving the original window untouched
Suits sash, casement and arched openings

Covering Hertfordshire

We can arrange surveys and fitting anywhere in Hertfordshire, including Watford and Hemel Hempstead. Dates depend on installer availability. Choose your town below for local details.

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 secondary glazing:

Offices in historic buildings
Listed homes and buildings in conservation areas
Period sash windows with original glass
Homes on busy roads wanting noise reduction

Towns in Hertfordshire

Getting the right glass for your building

Escape and ventilation

On windows used for escape, the secondary glazing must open quickly from inside without a key or tool.

How it opens

Match the opening style to the original window so both can be opened, cleaned and used for ventilation.

What the rules say in England

England

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.

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

Send sizes or use the quote tool
Free survey at your Hertfordshire address
Fixed price in writing
Glass made, then fitted

Security secondary glazing in Hertfordshire: questions

Which towns in Hertfordshire do you cover?

We can arrange work anywhere in Hertfordshire, including Watford, Hemel Hempstead, Stevenage, St Albans and Welwyn Garden City, and in other towns across the area.

Can I still open my sash windows?

Yes. Secondary glazing slides, hinges or lifts out so the original window can be opened and cleaned.

Is secondary glazing safe for escape windows?

It can be, as long as it opens quickly from inside without a key. We design catches and handles for that.

Do I need permission for secondary glazing in a listed building?

It depends on the building and the council. Internal secondary glazing usually has less impact than replacement windows, but listed building consent may still be needed. Ask the conservation officer before ordering.

Other glazing in Hertfordshire

Ready for a price? Use the form or call 0800 088 6248.