Security secondary glazing in St Helens

How much does security secondary glazing cost in St Helens?

Budget £594 to £1,794 including VAT (£495 to £1,495 plus VAT) per window for security secondary glazing in St Helens, supplied and fitted. Larger panes, thicker makeups and difficult access cost more; the price is fixed in writing after the survey.

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

Colour-matched frames to suit the room
Laminated glass in slim aluminium frames
Fixed within the reveal, leaving the original window untouched
Low-E glass for better insulation
Noise and draught reduction
Vertical sliding, horizontal sliding, hinged and lift-out styles

Fitting in St Helens and nearby

We can arrange security secondary glazing anywhere in St Helens, and in nearby Prescot, Ashton-in-Makerfield and Huyton. Tell us your postcode and we will offer dates.

Merseyside has Liverpool's listed commercial centre and waterfront offices, Victorian terraces across the city and the Wirral, and suburban high streets in Southport and St Helens.

Typical places for security secondary glazing:

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

Things to decide before you order

Escape and ventilation

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

Listed building consent

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

Rules that apply in England

England

Planning permission

Changing the glass in an existing window or shopfront does not usually need planning permission, because the building looks much the same afterwards. A new or altered shopfront, or security features added to the outside of a building, may need planning permission from the council. Bollards or barriers on the pavement need the highway authority's consent, which is normally the council.

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 St Helens
Accept the fixed quote
Fitted by glaziers working under our contract

Security secondary glazing in St Helens: questions

Which areas near St Helens do you cover?

We can arrange work in St Helens and in nearby Prescot (3 miles), Ashton-in-Makerfield (4 miles) and Huyton (5 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 St Helens

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