Aluminium Windows · County Antrim

Aluminium Windows in Belfast

Looking for aluminium windows in Belfast? S&K Glazing has been installing across County Antrim for over a decade. Aluminium windows are the architect's choice for contemporary builds — slim sightlines, large pane sizes, structural strength and powder-coated finishes that last decades.

Local service: Belfast, County Antrim
Warranty: 10-year insurance-backed
Airport: Belfast International Airport (BFS)
Get a free quote Call 0800 088 6341

Why choose S&K for aluminium windows in Belfast

  • Slimline frames maximise glass area and natural light
  • Thermally-broken profiles achieve U-values down to 1.0 W/m²K
  • Powder-coated in any RAL colour with 25-year colour warranty
  • Span up to 3m wide in a single pane
  • Stronger than uPVC — ideal for large openings and commercial projects

About the service

Aluminium windows are the architect's choice for contemporary builds — slim sightlines, large pane sizes, structural strength and powder-coated finishes that last decades. S&K Glazing supplies and installs Smart Systems, Aluk and Reynaers thermally-broken aluminium windows for residential extensions, commercial buildings and high-end refurbishments.

Aluminium Windows · Belfast

Working in Belfast

Belfast's Victorian and Edwardian terraces, the modern Cathedral Quarter regeneration, and the post-Troubles commercial expansion drive glazing demand across BT1-BT17. Heritage sash restoration, commercial shopfronts, and large-volume re-glazing on the urban estates all feature in our Northern Ireland workload.

For window-replacement work in Belfast, the property mix across Northern Ireland ranges from period stock through to modern new-build, so we specify the thermal solution per property — A++ rated double-glazed sealed units for standard upgrades (U-value 1.4 W/m²K), A-rated solar-control glazing for south-facing elevations, and triple-glazed argon-filled builds achieving 0.8 W/m²K for owners targeting near-Passivhaus performance. Most commonly we're working across BT1 and BT17 postcodes.

Our process

How we deliver in Belfast

01

Architectural consultation

We work from architect's drawings or survey your existing openings to specify profiles, glazing and finishes.

02

Manufacture

Custom-cut and assembled to your exact dimensions using Smart Systems, Aluk or Reynaers — lead time 3-4 weeks.

03

Specialist installation

Aluminium frames require precise installation tolerances. Our fitters are factory-trained on each system we install.

FAQs

Common questions

Aluminium typically costs 30-50% more than uPVC but lasts longer, has slimmer sightlines (more glass) and powder-coated finishes that won't fade. Best value where appearance and pane size matter.
Modern thermally-broken aluminium windows have a polyamide insulating barrier inside the frame — U-values are comparable to mid-range uPVC. We only install thermally-broken systems.
Yes — any RAL colour, plus dual-colour options (different inside and outside). Anthracite grey 7016, jet black 9005, and white 9010 are our most popular.

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Free survey, fixed-price quotes, no pressure sales. Call us, message on WhatsApp, or fill in the form — we typically respond within an hour during working days.

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Head office
Unit 1-4, Hembs Crescent, Great Barr
Birmingham B43 5DG

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