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Fixed Rooflights

Bring natural daylight streaming into your home or commercial space with our premium selection of fixed roof lights. Designed specifically for flat roof extensions, modern builds, and dark central rooms, a high-quality fixed roof light provides maximum daylight transmission without the need for a ventilation mechanism.

By removing opening chains and handles, fixed units offer ultra-slim profiles, uninterrupted views of the sky, and exceptional thermal performance. Explore our market-leading range from trusted industry brands, including Korniche, Velux, Brett Martin, and Coxdome, all built to deliver superior weather resistance, high security, and long-lasting durability.

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Why Choose Fixed Roof Lights for Your Flat Roof?

When extending a property or converting a flat roof space, introducing natural light is often the number one priority. Fixed roof lights are the perfect solution for areas where ventilation is already taken care of by doors, windows, or extractor systems. Because they do not open, fixed roof lights can achieve incredibly sleek, minimalist sightlines that blend seamlessly into your ceiling line, maximising the glass area and allowing up to 25% more daylight into your room compared to standard windows.

Beyond their beautiful modern aesthetics, fixed units offer structural and performance advantages:

  • Superior Thermal Efficiency: With no moving parts or structural opening seams, fixed glazing eliminates the risk of cold draughts and boasts lower U-values that help trap heat inside during winter.
  • Enhanced Home Security: Because these units cannot be manually opened from the outside, they act as an inherently secure barrier against potential intruders.
  • Low Maintenance: Fewer mechanical components mean there are no hinges, motors, or gas struts to service or replace over time.

Finding the Perfect Fixed Roof Light for Your Project

At LB Supplies, we stock a wide array of configurations to suit every architectural style and installation requirement:

  • Frameless vs Framed Designs: Choose sleek, edge-to-edge structural glass options like the Korniche Flat Lite for a completely unobstructed view of the sky, or traditional framed profiles that offer crisp visual borders.
  • Glazing Options: Personalise your sunlight. Choose clear double or triple glazing for pristine clarity, blue-tinted glass to reduce sun glare on bright summer days, or satin privacy glass for overlooked urban extensions or bathrooms.
  • Innovative Profiles: Alongside completely flat glass configurations, we supply curved glass options (such as Velux’s curved top units), which naturally shed rainwater and debris, keeping your glass cleaner for longer.

Leading Brands, Trusted Quality

We understand that a new roof window is a long-term investment in your property. That is why our catalogue is carefully curated around brands known for uncompromising build quality and robust guarantees. Whether you need an easy-to-install unit complete with a pre-formed 150mm uPVC upstand or a glazing-only option designed to fit onto a builder’s existing structural kerb, you will find exactly what your project demands right here.

Unsure which size or specification fits your structural roof opening? Our expert team is on hand Monday to Friday to assist you with technical measurements, delivery scheduling, and brand comparisons. Get in touch with us today.