Security secondary glazing in Harlow

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

Expect £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window for security secondary glazing in Harlow. The written quote names the glass makeup, the price and the lead time before you commit.

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.

What goes into security secondary glazing

Colour-matched frames to suit the room
Laminated glass in slim aluminium frames
Locks and catches that open from inside without a key
Vertical sliding, horizontal sliding, hinged and lift-out styles
Low-E glass for better insulation
Noise and draught reduction

Fitting in Harlow and nearby

Surveys in Harlow (CM17) are booked around installer availability. We also cover nearby Hoddesdon (5 miles), Bishop's Stortford (7 miles) and Waltham Abbey (8 miles).

Essex runs from Chelmsford and Colchester's town-centre retail and Georgian streets to Southend's seafront and large post-war and new-build estates in Basildon and Harlow.

Common uses:

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

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

Send sizes or use the quote tool
Free survey at your Harlow address
Fixed price in writing
Glass made, then fitted

Security secondary glazing in Harlow: questions

Can you survey in Harlow and nearby towns?

Yes. Surveys in Harlow, Hoddesdon and Bishop's Stortford are booked around 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.

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.

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 Harlow

Ready for a price? Use the form or call 0800 088 6248.