County Antrim · Northern Ireland
Aluminium Windows in County Antrim
Planning an extension or renovation in County Antrim? We can supply and fit aluminium windows made to your sizes, with dual-colour frames and glass chosen room by room.
- Guide from £925
- 9 towns covered
- Postcode areas BT
Powder coated aluminium windows in County Antrim: what to know
Aluminium windows are fabricated to order: profiles are cut, coated, assembled and glazed to the survey sizes. Lead times can be longer than for standard white uPVC, particularly for special colours or steel-look designs, and the expected timescale is confirmed in writing when you accept the quote.
Aluminium is strong enough to hold large, heavy glass units in narrow frames, so sightlines are slimmer than uPVC of the same size. That means more glass and more daylight from the same opening, which suits modern extensions, wide picture windows and slim replacements for old steel windows.
Aluminium frames are usually finished with polyester powder coating, baked on at the factory in a choice of RAL colours and in matt, satin or textured finishes. Dual-colour frames are possible, such as anthracite grey outside and white inside, so the windows can suit both the street and the room.
Steel-look aluminium windows reproduce the slim frames and glazing bars of traditional metal windows while adding a thermal break and double glazing. They are often chosen to replace failing original steel windows in 1930s houses, though conservation areas and listed buildings may need consent for the change.

Towns we cover for aluminium windows in County Antrim
Choose your town for local details, nearby areas and the postcode districts we cover.
What applies in County Antrim
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.
Listed buildings in Northern Ireland need listed building consent for most changes to historic windows.
County Antrim has its own coastline, so for homes and businesses near the sea, salt air and wind-driven rain are part of the brief. Salt air attacks metal finishes, so aluminium windows near the coast need a coating and pretreatment suited to marine exposure, stainless or protected hardware, and more frequent washing. Check that the coating terms allow for a coastal site before ordering.
Large aluminium units are heavy, so city jobs need planned unloading, parking and sometimes lifting gear or extra hands for upper floors. Flats need freeholder consent and planning permission, and conservation areas often control frame colour and glazing bar patterns.
Guide prices
| Typical job | Guide price inc VAT |
|---|---|
| Casement window, 900 × 1050 mm | £925 – £1,195 |
| Casement window, 1200 × 1200 mm | £1,095 – £1,395 |
| Large window, 1800 × 1500 mm | £1,495 – £1,995 |
| Slimline heritage style, 1200 × 1200 mm | £1,295 – £1,695 |
Choosing your aluminium windows
Steel-look windows
Very slim frames with glazing bars that mimic traditional metal windows, adding thermal performance and double glazing to the classic look.
Casement windows
Side-hung, top-hung or fixed sashes in slim aluminium frames, suiting most houses and extensions, with flush or stepped sash designs.
Tilt and turn
Inward-opening sashes that tilt for secure ventilation or swing open for cleaning and escape, useful for flats and high floors.
Glass upgrades
Triple glazing, laminated acoustic glass, solar-control coatings or obscure glass, chosen per window to suit the room and elevation.
Aluminium Windows in County Antrim: questions
What colours can aluminium windows be?
Aluminium windows can be powder coated in almost any RAL colour, in matt, satin, gloss or textured finishes, and many systems offer a different colour on each side. Anthracite grey, black and white are common choices, but heritage greens, creams and bronze tones are available too. Special colours can extend the manufacturing lead time, which is confirmed with the quote.
Can aluminium windows replace original steel windows?
Yes, steel-look aluminium windows are designed for this. They copy the slim frames and glazing bars of old metal windows while adding double glazing and a thermal break. Original steel frames are often set into the masonry, so removal can disturb render or plaster, and the survey checks this. Listed buildings and conservation areas may need consent first.
What guarantee do aluminium windows come with?
Manufacturer guarantees apply to the frames, powder coating, hardware and sealed units, and the terms are confirmed in writing. Coating cover often depends on the site environment and on regular cleaning, so read the conditions. Guarantee terms for the installation are set out in writing with your quote, before you agree to go ahead.
How long does it take to install aluminium windows?
Most single windows are fitted within a day, and a typical house takes a few days on site depending on the number of windows and the access. The longer part is manufacturing, because frames are cut, coated and glazed to the survey sizes. The expected lead time is confirmed in writing when you accept the quote.
Which parts of County Antrim do you cover for aluminium windows?
We cover the whole of County Antrim, including Belfast, Lisburn, Newtownabbey, Carrickfergus and Ballymena, and postcode areas BT. Building rules for aluminium windows 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 Antrim
- Replacement Glass in County Antrim
- Misted Glass Repair in County Antrim
- Emergency Glazing in County Antrim
- Safety Glass in County Antrim
- Window Repairs in County Antrim
- Window Film in County Antrim
- uPVC Windows in County Antrim
- Sash Windows in County Antrim
- Composite Doors in County Antrim
- Bifold Doors in County Antrim
- Sliding Doors in County Antrim
- Secondary Glazing in County Antrim
- Roof Lanterns in County Antrim
- Glass Balustrades in County Antrim
- Frameless Glass in County Antrim
- Shower Screens in County Antrim
- Glass Splashbacks in County Antrim
- Bespoke Mirrors in County Antrim
- Glass Roofs in County Antrim
- Shopfront Glazing in County Antrim
- Curtain Walling in County Antrim
- Glass Partitions in County Antrim
- Property Glazing in County Antrim
All glazing in County Antrim · Aluminium Windows across the UK
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