Modular Glazing Solutions

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Solutions by Sector

Explore Eltherington’s specialist architectural, modular, and leisure solutions, built around performance, manufacturing expertise, and long-term reliability.
- Architectural
  
  High-performance façade and cladding systems for commercial and public buildings.
- Modular
  
  Precision systems for modern methods of construction.
- Leisure Homes
  
  Complete solutions for leisure & holiday home manufacturing.
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Since the 1980s, Eltherington has been a trusted supplier of bespoke glazing systems to the modular building industry. As one of the sector’s leading manufacturers of windows and doors, we produce more than 150,000 UPVC frames annually from our Hull manufacturing facility.

Our glazing range is built around a tiered system approach, enabling customers to select the ideal solution based on performance requirements, project specification and build objectives. From high-volume standard production to fully bespoke configurations, Eltherington delivers glazing solutions tailored to the needs of every modular construction project.

Modular

RapidFit Slim Frame

A versatile & multifunction glazing system

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Modular

RapidFit Premium Frame

A complete, adaptable glazing and door system

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Modular

RapidFit Flush Frame System

Engineered for precision and the long-term performance your project demands

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Modular

RapidFit Door Solutions

Confidence delivered through clear performance and security

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wide range of materials & finishes

Natural PVC-u white (RAL 9011)

Golden Oak

Dark Green

Anthracite Grey

AnTeak

Rustic Oak

Spectral Ultra Matt Anthracite

Matt Black

Performance & efficiency

Built for precise modular glazing performance

Eltherington’s modular glazing systems are engineered specifically for offsite production environments, combining manufacturing precision with scalable output. U-values as low as 1.1 W/m²K using triple glazing, with systems capable of achieving PAS 24 and Secured by Design where specified.

Every system is developed for repeatable quality across high-volume programmes, with rapid fixing methods and internal trims that simplify the installation process on site.

Thermal Performance

U-values as low as 1.3 W/m²K with double glazing and 1.1 W/m²K with triple glazing across selected systems.

Secured by Design

RapidFit Flush Frame meets PAS 24 and Secured by Design standards for enhanced security performance.

ISO Manufacturing

All systems manufactured within an ISO 9001 accredited facility to BS EN 12600 and BS 6206 standards.

Scalable Production

Systems designed for high-volume modular programmes, with consistent output and repeatable manufacturing quality.

EPD Accredited

Environmental Product Declarations are available in accordance with EN 15804+A2 and ISO 14025

Technical Support

Experienced teams providing specification guidance, detailing, and project coordination from first enquiry through to delivery.

Start your project with clarity and confidence

Work with a team combining decades of experience, in-house manufacturing, and proven delivery.

Expert guidance from specification through to delivery
Trusted systems backed by CWCT testing and ISO accreditation
Coordinated design, engineering, and manufacturing under one roof
A dependable partner for what comes next

News & Insights

Latest news & Insights

August 2026

EG Modular: Building the Future of Modular Construction

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