Security secondary glazing in Dover

How much does security secondary glazing cost in Dover?

Typical prices for security secondary glazing in Dover 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.

Specification at a glance

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

Fitting in Dover and nearby

Whether you are in central Dover or at the edge of the CT16 district, we can arrange a survey. Nearby Folkestone and Deal are covered too.

Kent ranges from Canterbury's listed city centre and the Regency fronts of Tunbridge Wells to the Medway towns, Ashford's growth estates and coastal Margate and Folkestone.

Typical places for security secondary glazing:

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

Things to decide before you order

Listed building consent

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

Escape and ventilation

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

Rules that apply 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.

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

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

Security secondary glazing in Dover: questions

Do you cover Folkestone as well as Dover?

Yes. As well as Dover, we can arrange surveys in nearby Folkestone, Deal and Canterbury. Dates depend on installer availability.

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.

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.

Can I still open my sash windows?

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

Security secondary glazing in nearby towns

Other glazing in Dover

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