Flat Roof Windows in Brighton, Hove & Sussex
⚙️ Key Features of Our Flat Roof Windows
✅ Double or Triple Glazing – for year-round comfort and energy savings
✅ Thermally Broken Frames – prevents cold bridging and condensation
✅ Low Maintenance – weather-resistant aluminium or uPVC frames
✅ Custom Sizes & Shapes – circular, square, rectangular, or bespoke
✅ Integrated Upstands – available where required for easy installation
✅ Fully Sealed & Waterproofed – expertly fitted for zero leaks
Let the Light In — With Sleek, Energy-Efficient Flat Roof Window Solutions
At Zenix Glass Ltd, we specialise in the supply and expert installation of flat roof windows, designed to flood your space with natural light, enhance thermal efficiency, and deliver sleek, modern aesthetics. Whether you’re working on a new build, renovation, or extension — our team helps homeowners and contractors across Brighton, Hove, Shoreham, and wider Sussex transform flat roof spaces into bright, open environments.
We partner with world-leading brands like VELUX, FAKRO, and Brett Martin, ensuring every product we install meets the highest standards in performance, durability, and design.
🪟 Explore Our Range of Flat Roof Window Options
🔲 Fixed Flat Rooflights
Perfect for creating a permanent source of natural light without ventilation. Clean lines, contemporary design, and excellent insulation values.
✔️ Ideal for kitchens, hallways, and flat extensions
✔️ Available in standard sizes or custom-made
✔️ Low-profile designs for modern spaces
🔁 Opening Flat Rooflights
Want light and airflow? These roof windows combine natural illumination with manual or electric opening mechanisms for fresh air and ventilation.
✔️ Choose manual or motorised opening
✔️ Perfect for bathrooms, kitchens, and living spaces
✔️ Options available with rain sensors and remote control
🦶 Walk-On Rooflights
Stylish, structural glazing designed for terraces, balconies, or basements — engineered to be walked on safely while delivering light to the rooms below.
✔️ Load-tested and slip-resistant
✔️ Creates visual interest in rooftop spaces
✔️ Triple-glazed options for enhanced insulation
🏛️ Roof Lanterns & Skylights
Looking for that wow factor? Our flat roof lanterns and frameless skylights add volume, height, and architectural flair while illuminating your interiors beautifully.
✔️ Fully bespoke or modular systems
✔️ Contemporary aluminium frames
✔️ Perfect for orangeries, dining rooms, and extensions
🛠️ Professional Installation Across Sussex
When you choose Zenix Glass, you’re not just getting premium products — you’re getting peace of mind. Our experienced, in-house team ensures precise, clean, and compliant installation of all flat roof glazing systems. Every job is tailored to your roof structure and project requirements, ensuring maximum performance and minimal disruption.
We proudly install flat roof windows across:
Brighton, Hove, Shoreham, Goring-by-Sea, Worthing, and surrounding East & West Sussex.
🔐 Security & Performance Built In
All of our flat roof windows are built to meet the highest safety and security standards:
• Toughened or laminated glass
• PAS 24 and Secure by Design options
• UV and solar control coatings available
• Smoke vent (AOV) systems for compliance in commercial or stairwell projects
Frequently Asked Questions – Flat Roof Windows
Commonly asked questions. For more information, please don’t hesitate to contact one of our reps.
Can flat roof windows be installed on any type of flat roof?
Yes, absolutely. Our flat roof windows can be installed on most flat roof structures with pitches between 0° and 15°. We offer both standard and bespoke options to suit timber, concrete, or GRP flat roofs. Our team will assess your roof type during a free site survey to ensure the perfect fit and waterproof finish.
What’s the difference between fixed and opening flat roof windows?
Fixed rooflights are non-opening and ideal if you’re just looking to bring in natural light.
Opening rooflights, available in manual or electric versions, allow for ventilation and airflow — great for kitchens, bathrooms, or anywhere moisture control is needed.
Are flat roof windows energy efficient and weatherproof?
Yes! All our flat roof windows are double-glazed as standard with thermally broken frames to prevent heat loss. Many options include triple glazing and solar control glass to reduce glare and overheating. Every unit is fully sealed and professionally installed to ensure it’s completely weatherproof and watertight.
Do flat roof windows require planning permission?
In most cases, no planning permission is needed, as flat roof windows typically fall under permitted development rights. However, if your property is in a conservation area or you’re installing larger roof lanterns, we’ll advise you on whether permissions or building regulations apply.
Zenix Glass Ltd
Proudly serving the South Coast of the UK, Zenix Glass is your trusted local partner for premium windows, doors, and roof lights.
Office
Zenix Glass Ltd
Salt Marsh Road,
Shoreham-by-Sea
BN43 5QL
Opening Hours
Monday - Friday 9.00 - 5.30
Saturday - 9.00 - 1230
Sunday - Closed
