Security secondary glazing in Penzance

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

Our guide range for security secondary glazing in Penzance is £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window, including fitting. The survey is free for new installations and your fixed price follows in writing.

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

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

Fitting in Penzance and nearby

Whether you are in central Penzance or at the edge of the TR18 district, we can arrange a survey. Nearby Camborne and Redruth are covered too.

Cornwall's granite and slate cottages, harbourside shops and holiday lets face salt-laden coastal weather, and towns such as Truro, Falmouth and St Ives have conservation areas in their centres.

Common uses:

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

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.

Frame colour and sightlines

Slim frames that line up with the existing meeting rails make the secondary glazing almost invisible from outside.

Consents and safety: England

England

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.

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.

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 Penzance: questions

Do you cover Camborne as well as Penzance?

Yes. As well as Penzance, we can arrange surveys in nearby Camborne, Redruth and Falmouth. 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.

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.

Does secondary glazing reduce noise?

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

Security secondary glazing in nearby towns

Other glazing in Penzance

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