Welcome to Hallmark Glazed Extensions, where innovation meets luxury to redefine the aesthetics and functionality of your living space.
Our partnership with hup! brings you a revolutionary approach to home extensions.
Precision engineering, groundbreaking technology, and energy efficiency make hup! the preferred choice for homeowners seeking a hassle-free, quick, and stunning extension.

Introduction to hup!
In collaboration with hup!, Hallmark Glazed Extensions introduces a new approach to home extensions. hup! represents innovation, seamlessly combining millimetre-perfect precision engineering with unparalleled strength, immense energy efficiency, and rapid build times.
Ultrapanel Technology
hup! Walls - A marvel of efficiency, with the patented Ultrapanel technology that forms the core of hup! Walls.
These walls exceed Building Regulations with a remarkable U-Value of 0.17 W/m²K, delivering a lightweight yet robust structural solution. Built five times faster than traditional methods, hup! Walls eliminate weather delays and contribute to the swift completion of your dream extension.
Super-Strong i-Beam Structure Walls, where the panels, 68% stronger than traditional brick walls, rapidly clip together to form a super-strong i-beam structure.
This structural innovation ensures a perfect build with no cold spots, setting hup! apart in terms of strength, efficiency, and rapid construction.
Rapid connection with millimetre precision engineering and patented connections that make hup! a rapid build marvel.
With clip-fit connections across roofs and walls, a hup! extension is constructed five times faster than traditional builds, eliminating common concerns of project delays and ensuring a flawless build every time.

hup! Roofs
The Versatile Flat Roof technology that defines hup! extensions. Pre-manufactured to your specifications, this roof boasts an incredibly low U-Value of 0.12W/m²K.
Whether with flat skylights, roof lanterns, or none at all, the Flat Roof offers a hassle-free and compliant solution.
hup!'s BBA-approved Glass Roof is fully configurable to any shape, size, and colour. With high-performance glass, an insulated pelmet, and compatibility with various cornice designs, the Glass Roof is a testament to hup!'s commitment to aesthetics, efficiency, and quality.
The Hybrid Roof seamlessly blends thermally efficient grey panels with glazing. With a U-Value as low as 0.12W/m²K, this hybrid design allows glazing placement anywhere on the roof, ensuring the perfect balance of light and warmth throughout the year.
Thermally Efficient Tiled Roof is one of the most thermally efficient tiled roof systems with a U-Value as low as 0.12W/m²K. Providing superior strength for larger designs, this roof system saves on structural support costs and offers customisable options for glazing panels or Velux-style windows.
A Seamless Design Experience
hup! Configurator
Designing your dream extension with hup!'s easy-to-use online configurator is a breeze. You are able to visualise the possibilities by selecting from an array of roof styles, windows, and doors. The hup! Configurator (below) ensures a seamless design experience, allowing you to tailor your extension to perfection.
Advantages of Pre-fab Extensions
The hup! system offers a streamlined construction process, reduced project timelines, and minimal on-site disruption. Pre-fab extensions, including hup! builds, presents an efficient and cost-effective solution for expanding your living space.
Understanding SIP Extensions
Structural Insulated Panel (SIP) extensions and their advantages. SIP extensions, such as those implemented in hup! technology, offer exceptional insulation properties, rapid construction, and energy-efficient solutions for your home extension needs.
Modern Methods of Construction (MMC)
Featuring Modern Methods of Construction (MMC) and its application in hup! builds. MMC encompasses various processes and techniques, and hup! stands as a prime example of how cutting-edge construction methods can redefine the efficiency, sustainability, and design of home extensions.
Advantages of Conservatory Conversions
There are many advantages of conservatory conversions, especially those facilitated by hup! Technology.
Transform your existing conservatory into a space that boasts energy efficiency, quick construction, and a seamless integration of classic design with modern technology.
The Stress-Free Versatility of hup! Extensions - Conservatories, Orangeries, and More
Conservatories and orangeries can be installed quickly using the versatile hup! system. Each category offers a unique blend of classic aesthetics and advanced technology, providing homeowners with options tailored to their preferences.

From project management to eliminating multiple teams, hup! ensures a hassle-free process, allowing you to witness your dream extension come to life without the typical anxieties.
Certifications and Accreditations
hup! is fully Building Regulation compliant and has received approvals from leading bodies such as Assent, JHAI, BBA, and NHBC, ensuring the highest quality and compliance standards in every build.
Embracing Sustainability with hup! - Zero Waste Construction
Sustainability and being environmentally friendly are important aspects of hup! construction. With zero waste during the manufacturing process and high energy efficiency credentials, hup! stands as an eco-conscious choice for homeowners seeking a sustainable, green extension solution.
Tried and Tested - hup!'s Track Record
The extensive testing and tried-and-tested nature of hup! Technology can be relied upon. From being fully Building Regulation compliant to thorough assessments and accreditations by Assent, JHAI, BBA, and NHBC, hup! has a proven track record validated by numerous successful builds across the UK.
Advice Hub - A Knowledge Repository
Explore our advice hub for additional guidance, helpful articles, and useful tips. From the advantages of pre-fab extensions to understanding SIP extensions and exploring Modern Methods of Construction (MMC), our advice hub provides valuable insights for homeowners embarking on the hup! extension journey.
With Hallmark Glazed Extensions, your journey with hup! Will be a smooth process from start to finish. From understanding the core technology to embracing the versatility of hup! extensions, you will be equipped with the knowledge to make informed decisions for your dream home extension.
Join the hup! And Hallmark Glazed Extensions revolution, where innovation meets elegance and elevates your living space to new heights. Experience the stress-free, efficient, and sustainable building journey with hup! and witness your vision come to life seamlessly.
Your dream extension awaits, and hup! is here to make it a reality.

hup! - Frequently Asked Questions
Build Time and Efficiency
- What is the typical build time for a hup! extension?
- hup! extensions, including Glass Roofs, can typically be built in around 4 days depending on the size. This quick construction time is one of the key advantages of hup! technology.
Energy Efficiency
- Are hup! Roofs energy-efficient?
- Absolutely. All hup! Roofs are designed with energy efficiency in mind, boasting low U-Values that exceed Building Regulation requirements.
Customisation
- Can I customise the colour of my Glass Roof?
- Yes, hup! Glass Roofs are fully configurable, allowing you to choose the shape, size, and colour that perfectly complements your home.
Contact the friendly team at Hallmark Glazed Extensions, in East Sussex, on 01323 671007 to start your hup! Extension journey or visit our website to try the configurator and download your hup! Brochure for more information…
