Aluminium windows & doors • Fire rated glass • Structural glazing
Light-led contemporary glazing
Maximising light through contemporary glass doors, windows and facades.
High-end design
Premium aluminium glazing and structural glass systems designed to improve natural light, thermal performance and architectural design across London and the South of England.
Our products
Browse the full range.
Pivot and casement doors with refined aluminium frames, smooth operation and flexible access for premium glazing schemes.
Aluminium bifolding doors with slim profiles, secure performance and wide openings for indoor-outdoor living.
Slim aluminium sliding doors with large glass panels, flush thresholds and flexible layouts for premium projects.
Aluminium entrance doors with secure locking, refined styles and premium finishes for contemporary, traditional and rural homes.
Steel look aluminium systems with heritage glazing bars, slim frames and modern insulation for doors, windows and bifolds.
Aluminium window systems with clean profiles, secure performance and flexible configurations for premium projects.
Roof glazing systems including lanterns, rooflights, floorlights and automated designs for light, ventilation and access.
Frameless structural glass systems for extensions, glass walls, roofs, oriel windows and light-filled architectural spaces.
Internal glass doors and partitions with minimal frames, decorative glass options and smooth sliding, pivot or hinged operation.
Fire rated glazing systems designed to combine certified protection, clear visibility and refined architectural detailing.
Our process
Every project is carefully planned to ensure efficient delivery, technical precision and high-quality installation from consultation through to completion.
Estimated lead times vary depending on the scope of the project and are based on business days.
01
Initial consultation & quote
We assess the project requirements before providing expert recommendations and a tailored quotation.
Avg. lead time: 5-7 days
02
Order confirmation & deposit payment
Deposits are secured and final specifications are confirmed before manufacture and project scheduling begins.
Avg. lead time: 1-2 days
03
Design & technical planning
Layouts, sightlines and technical details are refined before manufacture begins.
Avg. lead time: 1-2 weeks
04
Manufacture & preparation
Systems are manufactured to specification using premium materials and high-performance glazing components.
Avg. lead time: 6-10 weeks
05
Installation & completion
Experienced installers complete the project with close attention to finish, alignment and performance.
Avg. lead time: 1 week
Our projects
Scroll through our recent projects
01 - 03
Contemporary glazing
The Beechcroft project combines contemporary aluminium glazing, slim sightlines and high-performance systems to maximise natural light and complement the modern architectural design.
02 - 03
Slim framed aluminium glazing
A contemporary South London renovation featuring slim framed aluminium glazing designed to maximise natural light, improve indoor-outdoor flow and create a bright, open-plan family living environment.
03 - 03
Wrap-around glass extension
A contemporary Buckinghamshire extension featuring large-format aluminium glazing designed to maximise natural light, improve open-plan living and strengthen the connection between the home and garden.
Technical advice
Choosing glazing systems for a premium property involves more than aesthetics, with performance, efficiency, sightlines and compliance all playing a key role
Planning a new glazing project, extension or architectural renovation?
Send us a message
Speak with Sieger Systems for expert guidance, technical support, and premium glazing solutions tailored to your project requirements.
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FAQs
Find answers to some of the most common questions about our aluminium glazing systems, structural glass installations and architectural glazing services.
What does Sieger Systems supply and install?
Sieger Systems supplies and installs premium architectural glazing systems, including aluminium sliding doors, bifold doors, windows, rooflights, structural glass, entrance doors, internal glazing, balustrades and specialist glass systems for residential and commercial projects.
Does Sieger Systems work with homeowners, architects and developers?
Yes. Sieger Systems works with homeowners, architects, interior designers, builders, developers, main contractors and trade clients, supporting projects from initial design advice through to supply and installation.
What types of projects are Sieger Systems products suitable for?
Sieger Systems products are used on premium homes, extensions, new-build properties, renovations, commercial buildings, residential developments and architect-led glazing projects.
Where does Sieger Systems install glazing systems?
Sieger Systems products are suitable for luxury homes, extensions, new-build properties, renovations, commercial buildings, residential developments and architect-led glazing projects where design, performance and build quality are important.
Can Sieger Systems provide bespoke glazing solutions?
Yes. Many Sieger Systems products can be tailored to suit the project, including frame finishes, glass options, opening configurations, sizes, thresholds, roof glazing designs and specialist performance requirements.
Can I visit a Sieger Systems showroom?
Yes. The Sieger Systems showroom allows homeowners, architects and project teams to view selected doors, windows, rooflights, glass finishes, opening systems and architectural glazing details in person.