Security secondary glazing in Richmond

Security secondary glazing in Richmond: what will it cost?

Typical prices for security secondary glazing in Richmond 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.

Choices you can make

Low-E glass for better insulation
Colour-matched frames to suit the room
Fixed within the reveal, leaving the original window untouched
Locks and catches that open from inside without a key
Vertical sliding, horizontal sliding, hinged and lift-out styles
Suits sash, casement and arched openings

Fitting in Richmond and nearby

We can arrange security secondary glazing anywhere in Richmond, and in nearby Isleworth, Hounslow and Barnes. Tell us your postcode and we will offer dates.

Greater London has every kind of glazing, from Georgian sashes and Victorian bays in conservation areas to high-street shopfronts, office curtain walling and new-build flats.

Typical settings for security secondary glazing:

Period sash windows with original glass
Homes on busy roads wanting noise reduction
Ground-floor flats in converted townhouses
Offices in historic buildings

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.

Escape and ventilation

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

What the rules say in 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 Richmond
Accept the fixed quote
Fitted by glaziers working under our contract

Security secondary glazing in Richmond: questions

Which areas near Richmond do you cover?

We can arrange work in Richmond and in nearby Isleworth (2 miles), Hounslow (2 miles) and Barnes (3 miles). Dates depend on installer availability.

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.

Does secondary glazing reduce noise?

Yes, often noticeably, because of the air gap between the two panes. Laminated glass helps further.

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.

Security secondary glazing in nearby towns

Other glazing in Richmond

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