Supporting Specialist Vehicle Converters With Quality Glass + Reliable Supply
We support specialist vehicle converters with high-quality glazing solutions and consistent, flexible service
Contact us nowUnmatched Quality in Van Conversion Windows
At SGI, we don’t just manufacture windows, we support specialist vehicle converters with high-quality glazing solutions and consistent, flexible service that helps you deliver exceptional results, every time. Whether you're converting ambulances, camper vans, welfare units, police vehicles or other bespoke builds, our glass is designed to fit precisely, install easily, and meet your exact technical requirements, all backed by decades of experience, UK manufacturing, and hands-on service.
Contact us now
Built for Converters – Precision, Reliability, Speed
We know the pressure you're under to deliver quality builds on time and within budget. That’s why converters across the UK and Europe choose SGI:
Consistent Quality – Every Time
All windows are manufactured in-house using toughened safety glass and powder-coated aluminium frames. We control the entire process, meaning you get the same high standard of finish on every single order, no variation and no surprises.
Flexible Supply to Suit Your Workflow
We understand every conversion operation is different. That’s why we offer multiple fulfilment options:
Bulk delivery upfront for larger projects or in-house stock
Weekly or monthly “just in time” delivery schedules, reducing storage requirements and freeing up factory space
We’ll work with you to create a plan that suits your build cycle and ensures you’re never waiting on glass.
Supplying the best
Engineered for Faster Fitting
Our frames are crafted to match the curvature of vehicle panels, meaning less adjustment, faster installs, and reduced labour costs. Our windows typically fit up to 13 minutes faster per unit than some competitors’, adding real efficiency across large-scale builds.
Bespoke Designs, Exclusive to You
Need something unique? We work with converters to develop bespoke window designs, made specifically for your project, and only available to you and your clients. Whether it’s a unique shape, specialist framing, or a non-standard tint, we’ll help you create a solution that elevates your offering and sets your builds apart.
A Trusted Partnership, Not Just a Product
We’re not an eCommerce site or a faceless parts supplier. When you work with SGI, you get a dedicated team, a consistent point of contact, and support across every order. From quoting and planning through to fulfilment and aftercare, we’re with you every step of the way.