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Security Windows
Advanced protection without compromising design.
Discover our range of high-performance security window systems engineered to meet the highest standards in forced entry resistance, ballistic protection, and blast mitigation. From discreet retrofitted solutions to fully certified systems for embassies, detention facilities, and critical infrastructure, our security windows combine robust construction with elegant aesthetics — all tested and certified to international standards.
Aluminium windows S6es-w series
A refined aluminium security window system offering elegant design variations with certified protection against break-ins (RC4), bullets (up to FB4-NS), and blasts (EXR3/EPR4). Engineered for demanding environments, including industrial and petrochemical applications.
Aluminium windows series S2es-w
Ultimate aluminium security window system, engineered for the highest levels of resistance against forced entry (RC6), bullets (FB7-NS), and blasts (EXR3 & EPR4). Designed for critical infrastructure, defence, and petrochemical applications.
Breakout resistant windows METAS®
Breakout-resistant aluminium windows designed for high-security facilities. The METAS® series prevents escape, suicide, and vandalism—offering RC4 protection without visible grilles.
Secondary window systems
Upgrade your existing windows without replacing them. SÄLZER’s Secondary Window Systems offer certified protection against forced entry, bullets, blasts, and fire—ideal for listed buildings, retrofits, and high-security needs.
Security windows SECUFIRE®
Steel security windows with ultra-slim profiles, SECUFIRE® combines RC4 break-in protection, FB4-NS bullet resistance, and optional fire, smoke, and blast protection—all within a sleek, architectural design.
Transaction windows
Ready-to-install high-security transaction windows with optional bullet, blast, fire, and smoke protection—ideal for embassies, police stations, and high-security environments.Areas We Cover Across London & the South
From West London boroughs to the leafy edges of Surrey, our expert glazing services are available in a wide range of locations. Explore some of our most in-demand areas below — and click through to learn more about the services we offer in each one.
What Our Customers Say
We take pride in delivering exceptional glazing solutions and outstanding customer service. Here’s what some of our happy clients have to say about working with Minimal Frame Projects.