Cost of Metal Window Frames
across the UK

How much does metal window frames cost in the UK?

Metal window frames typically cost between £300 and £1,200 per window installed. Standard aluminium frames range from £400–£800, whilst bespoke steel or heritage options reach £1,000–£1,500. Prices vary by size, material grade, glazing type, and installation complexity. Obtain multiple quotes for accurate pricing.

What affects the cost of metal window frames?

Five key factors impact pricing: frame material (aluminium versus steel versus composite), window dimensions and custom shapes, glazing specification (single, double, or triple), installation location (ground floor versus upper storeys), and existing frame removal complexity. Heritage conservation requirements also increase costs significantly.

What does a metal window frames service actually include?

Services encompass design consultation, accurate measurements, frame manufacture to specification, delivery, professional installation with weather sealing, glazing insertion, and hardware fitting. Quality providers include snagging inspections, remedial work, and aftercare support. Some offer bespoke finishes, thermal breaks, and integrated security features.

What's the difference between aluminium and steel window frames?

Aluminium frames offer superior corrosion resistance, lightweight installation, and modern aesthetics with slim sight lines. Steel frames provide authentic heritage appearance and greater strength, though require regular maintenance and prove heavier. Steel suits listed buildings; aluminium suits contemporary properties needing minimal upkeep.

What should I check before hiring a metal window frames provider?

Verify membership in Glass and Glazing Federation or Fenestration Self-Assessment Scheme. Check insurance coverage, references from recent installations, warranty terms (typically 10 years), and listed building experience if applicable. Request detailed quotations including materials, labour, and guarantees before commitment.

How long does metal window frame installation take?

Single-window installation typically requires 2–4 hours including frame removal, installation, and finishing. Multi-window projects span 3–10 days depending on property size and complexity. Bespoke manufacturing adds 4–8 weeks before installation commences. Weather conditions and structural adjustments may extend timelines.

Should I hire a certified professional for metal window frames?

Whilst unregulated, hiring certified installers from FGF or FENSA-registered companies ensures professional standards and consumer protection. They carry appropriate insurance, provide guarantees, and handle building regulation compliance for listed properties. Local specialists offer site knowledge; national firms provide consistency and scalability.