Security secondary glazing in Horsham

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

Typical prices for security secondary glazing in Horsham 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

Locks and catches that open from inside without a key
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
Noise and draught reduction

Fitting in Horsham and nearby

From the RH12 district we also cover Crawley (7 miles) and Horley (11 miles). Survey dates depend on installer availability.

West Sussex includes Chichester's Georgian city centre, the seaside towns of Worthing and Bognor Regis, Crawley's new-town centre and business parks, and Horsham's market-town streets.

Common uses:

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

What to think about first

Listed building consent

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

How it opens

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

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

Postcode and a few photos
On-site survey
Fixed written price and lead time
Fit, check and explain

Security secondary glazing in Horsham: questions

Can you survey in Horsham and nearby towns?

Yes. Surveys in Horsham, Crawley and Horley are booked around 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.

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 Horsham

Start with a guide price online, then we survey and fix the price in writing.