Fixed & Bespoke Windows
Uninterrupted views | Unlimited possibilities | Built for bold design
Highest quality materials
For professionals
Easy buying proccess
Bespoke designs
Here to help
Highest safety standards
Fixed Windows
Uninterrupted views. Unlimited possibilities. Built for bold design.
Our Fixed Windows are a versatile, design-forward solution for projects that call for clean lines, increased natural light and expansive glass areas.
Made to measure, these windows integrate seamlessly with the rest of your specification while offering complete creative freedom.
Key Features
- Compatible with all window styles
- Fully bespoke sizing, including special shapes and large-format windows
- Ideal for feature windows, and corner solutions
- Excellent thermal and acoustic insulation
- Same glazing options and finishes as operable windows
- No visible hardware, for a sleek architectural finish
Performance
- Uw: 0.78 W/m²K
- Acoustic: Rw = 45 dB
- Water tightness: Class 4 / E1200
- Wind resistance: Class 5 / 2000 Pa
Let us help you bring bold ideas to life-whether you’re designing a double-height space, framing a view, or creating a dramatic architectural gesture.
Bespoke Shapes & Corner Windows
Architectural freedom. Tailored precision. Built to your vision.
Our windows are designed to adapt not only to your specifications, but to your imagination. All four window styles can be manufactured in a wide variety of non-standard shapes and sizes without compromising on thermal performance, durability or visual consistency.
From soft curves to bold angles, our custom-shaped windows bring flexibility and individuality to any architectural design.
Corner Window Solutions
- Available with a traditional post or frameless glass-to-glass connection
- Frameless designs create uninterrupted, panoramic views with no visible structure
- Maximises natural daylight and spatial flow between indoors and out
- Adds architectural depth and breaks up flat elevations with dynamic glazing
- Ideal for contemporary homes, saunas, living rooms, bedrooms and relaxation spaces
Bespoke Shaped Windows
- Shaped glazing options including round, arched, oval, angled, triangular and more
- Ideal for gables, stairwells, bay windows, rooflines and large feature openings
- Elevates both traditional and contemporary façades
- Optional glazing bars for heritage detail or architectural rhythm
- Custom-made to structural tolerances and design specifications
- Fully compatible with triple glazing and high-performance energy-efficient units
Whether you’re designing for visual impact, improved daylighting or architectural clarity, Brüller’s bespoke windows combine creativity with proven performance.
Heat & Fire-Resistant Windows
Safety & style, built into every frame. Protect your home, protect what matters.
Sauna Windows
Sauna windows are more than a luxury, they’re designed for comfort, safety and energy efficiency. Our triple-glazed tilt & turn timber windows retain heat, bring in natural light, and match the style of your home.
Key Features
Fresh Air & Ventilation
Openable designs improve airflow, keeping each session comfortable.
Energy Efficient
Triple glazing and insulated frames minimise heat loss and reduce running costs.
Safe & Durable
Tempered glass resists thermal stress and adds peace of mind.
Light & Views
Natural light and scenic outlooks transform your sauna experience.
Performance Ready
Designed with heater sizing in mind, ensuring consistent warmth.
Fire-Resistant Windows
Ordinary glass fails within minutes under fire. Fire-resistant windows are engineered to hold back flames, smoke and heat, giving you crucial time to escape. Built and tested to meet UK Building Regulations, they combine modern safety standards with design flexibility for both contemporary and heritage homes.
Key Features
Certified Protection Rated EI30.
With EI30 rating giving 30 minutes of fire resistance. Meets requirements for fire safety and escape routes in domestic buildings.
Flexible Design
Available as casement or fixed windows, in timber or aluminium clad timber.
Heritage & Modern Homes
Fire-rated windows preserve period aesthetics while adding vital
protection. Aluminium clad systems suit modern builds.
As a first-time self-builder, I needed suppliers I could trust. Brüller stood out straight away, they were professional, patient, and really understood the process from my side. The windows and doors are beautifully made, and everything arrived exactly as promised. I wouldn’t hesitate to recommend them.
Eve, Self-Builder, Reigate
We wanted tilt & turn windows for our new-build home because of their quality and functionality. We also needed to find both interior and exterior doors, and Brüller provided us with a complete solution. The bespoke options ensured everything was a perfect fit for our home. Everything delivered on time and within budget, we’re extremely pleased with the results.
Kevin, Self-Builder, Henley-on-Thames.
Colours & Finishes
Our products are made from strong, long-lasting engineered timber and finished with water-based, eco-friendly paints and lacquers.
Brüller windows are available in the full RAL colour range, giving you over 200 standardised options to match the look and feel of your home.
For timber finishes, there are more than 40 Teknos woodstain choices that enhance and celebrate the natural grain of the wood.
You can also choose different colours for the inside and outside of your windows, so they sit comfortably within both your interior and exterior schemes.
All our timber finishes use water-based paints that are breathable, long-lasting and easy to maintain, allowing the wood to move and breathe over time.
And if you opt for aluminium-clad windows, they come in a sleek, durable matt finish, designed to look sharp and stand up to the elements.
Full RAL Colour Range
Choose from over 200 standardised RAL colours to match your design.
Natural Woodgrain, Your Way
With over 40 woodstain options you can enhance and celebrate the timber’s natural character.
Dual-Colour Options
You can select different colours for the inside and outside, so the windows work with both your interior and exterior schemes.
Water-Based Paints for Timber
Hardwearing, breathable and easy to touch up. Our finishes protect the wood while allowing it to breathe naturally over time.
Matt Aluminium-Clad Finish
Sleek, modern and low-maintenance. All aluminium-clad windows come in a durable matt finish as standard.
Our window specifications
Engineered for performance. Customised for you.
Functionality
- Inward-opening Tilt & Turn operation
- Tilt: secure ventilation
- Turn: full access and easy cleaning
- Suitable for balcony door applications
- Micro ventilation option as standard
- Child-safe features available
Energy Efficiency
- Triple glazing with warm edge spacers
- Argon or krypton gas fill
- U-values from 0.7 – 1.0 W/m²K
- Acoustic insulation up to 34 dB+
- Optional laminated, safety or solar control glazing
Design Flexibility
- Bespoke sizing and configuration
- Available in any RAL colour and dual colour options
- Optional internal duplex bars and glazing bars
- Integrated blinds, flyscreens, trickle vents available
Security & Hardware
- Multi-point locking
- Visible or concealed hinges
- Handle options with or without key locks
- Wide range of handle colours
Material & Finish
- Finger-jointed engineered timber core
- Powder-coated aluminium cladding (alu-clad models)
- Factory-finished in any RAL colour or timber stain
Sustainability & Certification
- CE-compliant across all ranges
- Passive House-certified options available
- Long lifespan and low maintenance
Let’s Talk About Your Project
We’re here to help you choose the right windows and doors, and deliver them with precision, care and confidence. Whether you're planning a new build home or a larger development, we’ll guide you through every step.