Steel Effect Windows offer the sought-after slimline, industrial-style appearance of traditional steel frames while delivering the energy efficiency, affordability and low-maintenance advantages of modern materials. At Paragon Windows, our steel-effect systems replicate the iconic narrow sightlines and elegant grid patterns that define classic steel windows — perfect for contemporary homes, extensions, loft conversions, and heritage-style renovations. Built using high-performance uPVC or aluminium, these windows provide superior insulation, strength and security without the drawbacks of real steel, such as corrosion or high cost.

Key Benefits:

• 10-year product guarantee for durability, confidence and long-term protection

• Ultra-slim sightlines recreating the authentic aesthetic of steel-framed windows

• A-rated Window Energy Ratings (WER) as standard for excellent insulation

• Strength-enhanced framework designed for structural stability and long-lasting performance

• Secured by Design accredited options for top-level safety and police-preferred security

• Corrosion-resistant hardware ensuring smooth operation and long service life

• Low-maintenance finish that resists rust, fading and weathering — unlike traditional steel

• Multiple glazing bar, colour & accessory options to achieve the perfect industrial, heritage or modern look