SÄLZER Archives - Minimal Frame Projects

Aluminium doors series S2es-d

High-security aluminium doors with advanced protection against forced entry (up to RC5), ballistic threats (up to FB7-NS), and blasts (up to 500 kg of explosives), without compromising on design flexibility or ease of use.

Aluminium doors series S6es

Secure, sleek, and fully customisable — the Aluminium Doors Series S6es offers high-performance protection against forced entry, bullets, and explosions, without compromising on design. Ideal for both residential and commercial buildings where security and aesthetics go hand in hand.

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.

Entry ports and high-security double-door entry systems

SÄLZER entry ports and double-door systems offer a seamless balance between high-level security and smooth user flow. With customisable configurations using certified steel or aluminium products, each system is tailored for controlled access, data exchange, and integrated surveillance — all without compromising safety or functionality.

Prison and detention cell door series S4Z

The S4Z steel detention door system is purpose-built for maximum security in custodial environments. Tested to RC4 from both sides, it offers extreme resistance to torsion, vandalism, and breakout attempts, while prioritising suicide prevention and operational safety for staff.

SÄLZER series S1es aluminium facade

The S1es aluminium façade system delivers invisible high security with a sleek architectural finish. Certified against forced entry, bullets, and blast pressure, it offers flexible integration with windows, doors, and insert units — all while maintaining a uniform and modern façade design.

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.

SECUFIRE® steel tubular frame door

The SECUFIRE® steel tubular frame door system delivers elegant, high-security performance with slim profiles and expansive glazing. Certified for forced entry, bullet, blast, fire, and smoke resistance — it’s ideal for projects demanding multi-threat protection with architectural finesse.

Security doors S4

Engineered for the most demanding environments, the S4 steel door system offers unmatched protection against forced entry, ballistics, explosions, fire, and smoke — all while delivering architectural flexibility and winning design recognition. Ideal for high-security facilities and industrial use.

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.

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.

Hammersmith & Fulham

From heritage properties to contemporary apartments, we’ve delivered bespoke glazing installations across Hammersmith.

Kensington & Chelsea

We’re trusted in one of London’s most prestigious postcodes for ultra-slim glazing that complements period architecture.

Surrey

Our team regularly completes residential and commercial glazing projects throughout Surrey — from frameless rooflights to oversized sliding doors.

Twickenham

From glass box extensions to walk-on-glass features, we’ve transformed homes and gardens in Twickenham with stunning glazing solutions.

Not sure if we cover your location?

We’d still love to hear from you. Our team may be able to assist even if your area isn’t listed — just get in touch to check availability.

Call 0207 550 6550

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.

Visit Our Showroom in Surbiton

Visit Our Showroom & Explore Premium Glazing Solutions

Experience the quality of our slimline glass doors, windows, and structural glazing in person. Whether you're planning a project or need expert advice, our team is here to help.

Located in Surbiton, we welcome homeowners, architects, and developers to see our range up close.

Call 0207 550 6550