Precision-Moulded Plastic Components for Windows, Doors & Glazing Systems
UB Plastics supplies injection moulded components for use in modern window, door and glazed facade systems. Working closely with fenestration manufacturers and system designers, we deliver durable, high-quality parts that support weatherproofing, safety and ease of installation.
With in-house tooling, fast lead times and a proven track record in building product supply, we’re a reliable UK partner for plastic mouldings in the fenestration industry.
Supporting the Fenestration Supply Chain
The fenestration sector plays a vital role in both new-build and retrofit construction, requiring products that are robust, thermally efficient and compliant with industry standards. From manufacturers and fabricators to installers and OEM suppliers, reliable plastic components support performance and protect the finished product.
UB Plastics works across the supply chain to deliver precision-moulded parts that align with system requirements, installation processes and long-term durability expectations. We help our customers meet both technical and aesthetic goals while keeping production efficient and repeatable.
Products for the Fenestration Sector
We manufacture a range of components tailored for window, door and facade systems, including:
- End Caps – For trims, profiles and drainage systems, improving both safety and visual finish
- Inserts & Plugs – Supporting secure assembly and alignment within frames and fittings
- Protective Components – Such as covers, guards or packing elements to protect hardware during transport or fitting
- Bespoke Mouldings – Designed in collaboration with manufacturers to match proprietary system designs or new product developments
All parts are manufactured in-house using high-quality, durable thermoplastics and packaged for trade handling or integration into production lines.
Why Choose UB Plastics?
Built on Experience
With roots going back to 1983, UB Plastics has decades of know-how in injection moulding. Trusted by major brands. We’re proud of our heritage, and even prouder of where it’s taken us.
Advanced Capability
We run 23 injection moulding machines, from 35T to 220T, with high-speed robotics and in-mould labelling. It means we can deliver consistent, high-volume production with precision, every time.
Committed to Sustainability
From recycled tamper-evident caps to efficient, low-waste production, we help our customers meet sustainability goals without compromising on quality.
End-to-End Support
We go beyond moulding, offering in-house design, tooling, stockholding and delivery, to make your project run smoothly from start to finish.
Trusted by Leading Brands
We’ve earned the confidence of major names in brewing, food, packaging and construction, by delivering quality, reliability and service that speaks for itself.
Reliable Fit & Performance, Every Time
In fenestration, small components can have a big impact, on thermal efficiency, weather resistance, and installation time. That’s why we focus on accuracy, consistency and material suitability when producing moulded parts for the window and door industry. Our design support helps ensure seamless integration into your existing systems.
Get in Touch Today
Looking for a plastic moulding partner for your window, door or facade products? Contact us to discuss your next project or request a quote.