County Armagh · Northern Ireland
Secondary Glazing in County Armagh
Is traffic noise getting through the windows of your home in County Armagh? We can quote for acoustic secondary glazing tailored to each opening.
- Guide from £465
- 4 towns covered
- Postcode areas BT
Internal secondary windows across County Armagh
Glass for secondary glazing is heavy, so the frames need firm fixings into the reveal or a supporting sub-frame. The surveyor checks that plaster, timber linings and window boards are sound enough to carry the weight, and allows for any packing needed in uneven reveals.
Owners of listed buildings should seek listed building consent before installing secondary glazing, as the requirements depend on the building and the council. Secondary glazing is often seen as a minimal, reversible change, but carrying out works that need consent without it is a criminal offence.
If an existing window is relied on for escape in a fire, the secondary glazing in front of it must open easily and give enough clear opening. The surveyor checks which windows are escape windows, so the opening style and catches do not block a way out.
The price of secondary glazing depends on the size and number of windows, the opening style, the glass specification, any shaped or arched heads, reveal depth and condition, and access. Acoustic laminated glass and shaped frames cost more than standard clear glass in rectangular frames.

What applies in County Armagh
Technical Booklet V covers safety glazing in Northern Ireland, including glass in and around doors and low-level glazing where people could walk into it.
Where a window provides an escape route, its replacement in Northern Ireland should give at least the same escape opening as before.
County Armagh is inland, around 30 km from the nearest coast at its closest point, so salt exposure is rarely a factor.
Rural cottages and period homes often have single-glazed timber windows that cannot easily be replaced. Secondary glazing reduces draughts and heat loss in exposed locations, and the surveyor allows for uneven reveals and older plaster when fixing frames.
Guide prices
| Typical job | Guide price inc VAT |
|---|---|
| Slider, 900 × 1200 mm | £465 – £595 |
| Slider, 1200 × 1600 mm | £665 – £845 |
| Acoustic glass, 1000 × 1400 mm | £675 – £865 |
Choosing your secondary glazing
Hinged casement
Panels open inwards like a door, giving full access to the original window, and can be chosen for escape windows.
Low-E glass
Coated glass that reflects heat back into the room, improving insulation when the original window is single glazed.
Lift-out panel
A lightweight panel that lifts out of its frame, for windows rarely opened, giving a slim and economical secondary unit.
Horizontal sliding
Panels slide sideways, suiting wide casement windows and openings where you need regular access for cleaning or ventilation.
Secondary Glazing in County Armagh: questions
Is secondary glazing suitable for rented homes and flats?
Yes. Secondary glazing is fitted inside, so it often avoids the external changes that leases, freeholders or planning rules restrict. It can be removed later with limited making good. Leaseholders should still check their lease for any rules on internal alterations, and landlords should check escape routes are not affected.
How much noise does secondary glazing block?
Results depend on the size of the gap between the windows, the glass type and thickness, the seals and the original window. A larger cavity and acoustic laminated glass give the strongest improvement. The survey checks reveal depth and noise sources, so the specification can be tailored to the noise you are dealing with.
How do I clean and look after secondary glazing?
Open or remove the panels as designed, then clean the glass with mild soapy water and a soft cloth. Wipe the aluminium frames and runners, and keep tracks free of dust so panels slide smoothly. Check seals and catches occasionally. Avoid abrasive cleaners, which can scratch coated glass.
Can I still open my original windows?
Yes, as long as the secondary glazing has an opening panel in front of the part you need to open. Sliding and hinged panels give access to the original window for ventilation and cleaning. Lift-out and fixed panels suit windows you rarely or never open.
Which parts of County Armagh do you cover for secondary glazing?
We cover the whole of County Armagh, including Craigavon, Portadown, Lurgan and Armagh, and postcode areas BT. Building rules for secondary glazing here follow the regulations for Northern Ireland. Enter your postcode on the quote form and we will confirm cover; then a glazier will arrange a free survey before giving you a written quote.
Other glazing services in County Armagh
- Replacement Glass in County Armagh
- Misted Glass Repair in County Armagh
- Emergency Glazing in County Armagh
- Safety Glass in County Armagh
- Window Repairs in County Armagh
- Window Film in County Armagh
- uPVC Windows in County Armagh
- Aluminium Windows in County Armagh
- Sash Windows in County Armagh
- Composite Doors in County Armagh
- Bifold Doors in County Armagh
- Sliding Doors in County Armagh
- Roof Lanterns in County Armagh
- Glass Balustrades in County Armagh
- Frameless Glass in County Armagh
- Shower Screens in County Armagh
- Glass Splashbacks in County Armagh
- Bespoke Mirrors in County Armagh
- Glass Roofs in County Armagh
- Shopfront Glazing in County Armagh
- Curtain Walling in County Armagh
- Glass Partitions in County Armagh
- Property Glazing in County Armagh
All glazing in County Armagh · Secondary Glazing across the UK
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