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Tailored for High-Security Environments

Engineered for police stations, embassies, and critical facilities, our transaction windows deliver advanced protection without compromising day-to-day usability.

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Maximum Security Performance

Achieve bullet resistance up to FB7-NS and burglar resistance up to RC6 depending on system selection—tested and certified to international standards.

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Flexible Integration & Design Options

Choose from aluminium or steel frame options with various surface finishes and integrated communication, video, and transfer tray systems.

Ready-to-Install Transaction Windows for High-Security Zones

Our prefabricated transaction windows are engineered for secure environments such as embassies, police stations, and critical infrastructure buildings. Available in various materials and resistance classes, they provide a customised and certified solution for bullet, blast, burglar, fire, and smoke protection.

Prefabricated high-security units with glazing, cladding and transfer tray

Available in aluminium and steel constructions to suit various needs

Bullet resistance up to FB7-NS and burglar resistance up to RC6

Optional fire and smoke protection with SECUFIRE® steel system

Compatible with S1es, S2es-w, S6es-w and SECUFIRE® product series

Supports custom communication and video integration

Certified Protection with Functional Flexibility

Transaction windows built to secure what matters most

Designed to withstand the most demanding security threats, our transaction windows are customisable to fit multiple security classes including bullet, blast, burglar, fire, and smoke protection.

Each unit comes prefabricated for rapid deployment and can be installed internally or externally in masonry, reinforced concrete, or other wall structures. Optional accessories like integrated communication and video modules ensure seamless operation in public-facing roles.

Whether used in public institutions or private facilities, these units offer architectural flexibility while maintaining uncompromising performance. Our transaction windows represent the trusted standard for reliable, compliant protection.

Technical Specifications

Performance levels depend on selected series and material

Forced Entry Resistance

Tested in accordance with DIN EN 1627–1630, with resistance classes up to RC6 depending on series (S1es, S2es-w, S6es-w, SECUFIRE®).

Bullet Resistance

Up to FB7-NS as per DIN EN 1522–1523, with certified glazing in accordance with DIN EN 1063.

Blast Resistance

Tested with explosives up to 500 kg at a 24 m distance. Classified GSA 2 (Very High) and ISO B (No Hazard).

Fire Resistance

Depending on selected design, up to T90/EI90 fire resistance with SECUFIRE® steel frames.

Smoke Protection

Certified up to S200 for smoke control in steel-based variants.

Surface Options

Available primed, painted, anodised, powder coated or clad in timber, stainless steel, stone, or bronze.

Integration

Supports transfer trays, communication modules, and video tech. Compatible with all SYSTEM SÄLZER products.

Installation & Design

High prefabrication enables quick installation in internal or external applications. Installed into masonry, concrete, or framed structures.

Need a Bespoke Security Window?

Get Expert Advice Today

Our team will help you select and customise the ideal transaction window system to meet your security and architectural requirements. Reach out for a consultation or quote.

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.

Trustpilot Reviews

Minimal frame projects UK Ltd

4.1 10 Reviews

Mj
Mrs joanne 2025-05-08

Sliding Door & windows install

We had two Velfac windows, a large picture window, two skylights and a set of 3 sliding minimal frame doors installed. Very happy with the products but the doors are still not fully operating - 2 years on. Pro's: - Nathan, our sales contact was very well informed and provided good advice at the early stages. - Contracts and payment points were all clear - Technical drawings clear - Products are good quality and feel - Bob was quick to attend when we had a big issue after install - Good value Con's: - Builders left to interpret the window requirements - a video walkthrough together would have instilled more confidence to both parties. Even though all worked out fine. - Sliding door product is not operating due to damage arising from previous fixes. Still waiting a fix; communictions ongoing.

Edward Kellow 2025-03-03

Super smooth experience

Super smooth experience! Everyone MFP were easy and honest to work with. The fitting team lead by Jason did an exceptional job craning our glass roof up and over the house! The glass itself is beautiful and was measured to perfection. Top work thank you all!

A
Ali 2024-06-08

Modern Minimalist Orangery sliding doors

Absolutely delighted with our recent purchase of sliding doors for our new orangery, part of a major renovation of our home. The quality is top-notch, and the sleek design will perfectly complement our modern kitchen and frame the amazing views we have. The door’s sturdy construction and beautiful minimalist finish add a touch of elegance to the space. Highly recommend this product to anyone looking to enhance their home with stylish and functional sliding doors.

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.