Steel windows and doors manufactured with the Metro M40 System are built to last for decades. Steel is inherently one of the most durable materials available for architectural joinery — it doesn’t warp, swell, or deteriorate the way timber can, and it outperforms aluminium in terms of structural strength. With appropriate care and maintenance, our products are designed to provide a lifetime of performance. The galvanized steel substrate, combined with our primer and two-pack paint system, ensures long-term protection against corrosion and wear.
