Security secondary glazing in Windsor

How much should I budget for security secondary glazing in Windsor?

Guide prices for security secondary glazing in Windsor are £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window for supply and fitting. We confirm a fixed price in writing after a free survey, before any glass is ordered.

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.

Choices you can make

Noise and draught reduction
Fixed within the reveal, leaving the original window untouched
Laminated glass in slim aluminium frames
Vertical sliding, horizontal sliding, hinged and lift-out styles
Suits sash, casement and arched openings
Low-E glass for better insulation

Fitting in Windsor and nearby

We can arrange security secondary glazing anywhere in Windsor, and in nearby Slough, Egham and Staines-upon-Thames. Tell us your postcode and we will offer dates.

Berkshire pairs the glass-fronted offices of Reading, Slough and Bracknell with Victorian and Edwardian housing and listed riverside buildings in Windsor and Eton.

Common uses:

Listed homes and buildings in conservation areas
Homes on busy roads wanting noise reduction
Offices in historic buildings
Ground-floor flats in converted townhouses

What to think about first

Escape and ventilation

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

Listed building consent

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

Consents and safety: England

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.

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

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

Security secondary glazing in Windsor: questions

Which areas near Windsor do you cover?

We can arrange work in Windsor and in nearby Slough (2 miles), Egham (4 miles) and Staines-upon-Thames (5 miles). Dates depend on installer availability.

Can I still open my sash windows?

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

Will secondary glazing cause condensation?

A well-fitted unit usually reduces condensation on the inner pane. Some ventilation of the gap may be needed, which we discuss at the survey.

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.

Security secondary glazing in nearby towns

Other glazing in Windsor

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