Roof Windows & Lanterns | Roofing Supplies

Transform your property with premium glazing solutions that increase natural light, improve airflow and enhance energy efficiency across both pitched and flat roof areas. Our range is designed to suit every style of home, from modern extensions to traditional loft conversions.

Pitched Roof Windows for Loft and Attic Spaces

Our pitched roof windows are designed to make the most of sloped roof areas, delivering strong daylight and excellent ventilation. They are ideal for loft conversions, attic rooms and any living space built into a pitched roof. With advanced glazing options, improved insulation and easy-to-operate opening mechanisms, they help create comfortable, bright and energy-efficient rooms all year round.

Flat Roof Windows for Extensions and Open-Plan Rooms

Flat roof windows offer a clean, contemporary finish that suits modern extensions, kitchen refurbishments and large open-plan spaces. Available in fixed, opening and walk-on designs, they provide exceptional natural light while maintaining impressive thermal performance. Their minimalist profiles and durable construction make them a popular choice for homeowners looking to brighten and modernise their living areas.

Roof Domes for Practical, Even Daylighting

Roof domes provide a cost-effective solution for bright, even daylighting across flat roof surfaces. Their curved shape improves water drainage, reduces standing water and spreads light more evenly throughout the room. Lightweight yet durable, roof domes are ideal for both residential and commercial projects where practicality, value and performance are key considerations.

Roof Lanterns for Bright, Open-Plan Living

Roof lanterns create a stunning focal point in any extension, introducing dramatic overhead light and enhancing the feeling of height and space. With slimline frames, energy-efficient glazing and excellent thermal insulation, they’re perfect for kitchens, dining areas and contemporary living rooms. Roof lanterns not only improve daylight but also elevate the architectural style of your home.

Sun Tunnels for Dark or Enclosed Areas

Sun tunnels are designed to deliver natural light into internal spaces where traditional roof windows cannot be installed. By capturing daylight from the roof and channelling it through a reflective tube, they brighten hallways, staircases, bathrooms and utility rooms with surprising intensity. They’re an excellent way to reduce reliance on artificial lighting in darker areas of the home.

Roof Window Accessories for Performance and Protection

Our roof window accessories range includes everything needed for a secure, long-lasting installation — from flashing kits and insulated frames to opening controls and ventilation upgrades. These accessories ensure your roof windows perform as intended, providing better weatherproofing, smooth operation and improved overall energy efficiency.

Window Blinds for Light Control and Comfort

Our window blinds are made specifically for roof windows, providing the perfect fit and seamless operation. Choose from blackout blinds for bedrooms, thermal blinds for improved insulation or light-filtering blinds for living spaces. They help control glare, improve privacy and enhance comfort throughout the home.

FAQs

Are flat roof windows or roof lanterns better for an extension?
It depends on the look you want. Flat roof windows offer a minimalist, modern finish, while roof lanterns add a dramatic architectural statement and bring in more overhead daylight.

Do sun tunnels actually brighten dark areas?
Yes — sun tunnels are specifically designed for enclosed or narrow spaces that receive little natural light. They can brighten rooms surprisingly well and reduce the need for artificial lighting during the day.

Are roof domes suitable for domestic properties?
Absolutely. Roof domes are suitable for homes and provide excellent daylighting at a lower cost than many other glazing options. They’re practical, durable and ideal for flat roof sections.

Check out our other Roofing Supplies range at JJ Building Materials.