Security secondary glazing in Cambridge

Security secondary glazing in Cambridge: what will it cost?

Typical prices for security secondary glazing in Cambridge are £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window, supplied and fitted. Use the quote tool for a guide figure, then we survey and confirm a fixed price.

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.

Glass and fitting options

Noise and draught reduction
Colour-matched frames to suit the room
Fixed within the reveal, leaving the original window untouched
Laminated glass in slim aluminium frames
Vertical sliding, horizontal sliding, hinged and lift-out styles
Locks and catches that open from inside without a key

Fitting in Cambridge and nearby

From the CB1 district we also cover Newmarket (13 miles) and Huntingdon (16 miles). Survey dates depend on installer availability.

Cambridgeshire has listed college streets and shopfronts in Cambridge and Ely, Peterborough's Victorian terraces and modern retail, and science-park offices with large glazed facades.

Typical settings for security secondary glazing:

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

Getting the right glass for your building

How it opens

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

Listed building consent

Internal secondary glazing is usually seen as reversible, but consent can still be needed. Check with the conservation officer first.

What the rules say in England

England

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.

Windows needed for escape

Approved Document B expects many habitable rooms in houses, particularly upstairs, to have an escape window with a clear opening of at least 0.33 m², at least 450 mm high and 450 mm wide, with the bottom of the opening no more than 1,100 mm above the floor. Changing the glass does not alter that, but locks, secondary glazing and film must not stop the window opening. Laminated glass is hard to break through, so escape always relies on the window opening.

How it works

Tell us about the glazing
Survey, measuring and frame check
Written quote naming the glass
Fitting and handover