Aluminium Flat Glass

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Enhance your projects with high-quality flat glass, ideal for windows, doors, partitions, and more. Our flat glass is precision-engineered for clarity, durability, and performance, delivering a sleek, modern finish for any space.

Available in a variety of thicknesses, sizes, and glass types, it’s perfect for both residential and commercial applications. Whether you’re upgrading your home or completing a new build, our flat glass ensures maximum light, style, and energy efficiency.

Shop our range of premium flat glass today – with free UK delivery and flexible buy now, pay later options.

Showing all 10 results

Fixed Rooflights, Aluminium Flat Glass, Flat Roof Windows, All Rooflights, Skylights & Roof Windows

Brett Martin Flat Glass 150mm uPVC Kerb, Fixed Opening
From £563.85£469.88 Inc. VATEx. VAT

Select options This product has multiple variants. The options may be chosen on the product page
Fixed Rooflights, Aluminium Flat Glass, Flat Roof Windows, All Rooflights, Skylights & Roof Windows

Brett Martin Flat Glass 150mm uPVC Kerb, Manual Opening
From £624.60£520.50 Inc. VATEx. VAT

Select options This product has multiple variants. The options may be chosen on the product page
Fixed Rooflights, Aluminium Flat Glass, Flat Roof Windows, All Rooflights, Skylights & Roof Windows

Brett Martin Flat Glass 300mm uPVC Kerb, Fixed Opening
From £611.36£509.47 Inc. VATEx. VAT

Select options This product has multiple variants. The options may be chosen on the product page
Fixed Rooflights, Aluminium Flat Glass, Flat Roof Windows, All Rooflights, Skylights & Roof Windows

Brett Martin Flat Glass 300mm uPVC Kerb, Manual Opening
From £672.10£560.08 Inc. VATEx. VAT

Select options This product has multiple variants. The options may be chosen on the product page
Fixed Rooflights, Aluminium Flat Glass, Flat Roof Windows, All Rooflights, Skylights & Roof Windows

Brett Martin Flat Glass Fixed Opening
From £445.47£371.23 Inc. VATEx. VAT

Select options This product has multiple variants. The options may be chosen on the product page
Fixed Rooflights, Aluminium Flat Glass, Flat Roof Windows, All Rooflights, Skylights & Roof Windows

Brett Martin Flat Glass, Manual Opening
From £599.68£499.73 Inc. VATEx. VAT

Select options This product has multiple variants. The options may be chosen on the product page
Fixed Rooflights, Aluminium Flat Glass, Flat Roof Windows, All Rooflights, Skylights & Roof Windows

FAKRO Electrically Operated Double Glazed Flat Roof Window (DEG P2)
From £1,312.76£1,093.97 Inc. VATEx. VAT

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Fixed Rooflights, Aluminium Flat Glass, Flat Roof Windows, All Rooflights, Skylights & Roof Windows

Horizon EDGE Air Flat Rooflight
From £1,432.80£1,194.00 Inc. VATEx. VAT

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Aluminium Flat Glass, All Rooflights, Skylights & Roof Windows

Horizon Edge Multipane
From £1,307.52£1,089.60 Inc. VATEx. VAT

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Aluminium Flat Glass, Flat Roof Windows, All Rooflights, Skylights & Roof Windows

Horizon Edge Walk On
From £2,155.68£1,796.40 Inc. VATEx. VAT

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What is Aluminium Flat Glass

Aluminium rooflights for flat roofs are designed to provide a clean, modern look with uninterrupted glazing and slim frame profiles. While they don’t usually feature decorative elements like astragal bars, they can still be customised through made to measure sizing and a choice of frame colours to suit your home. These flat roof windows are installed primarily to maximise natural daylight and create a bright, open atmosphere, offering a clear view of the sky and helping transform darker spaces such as kitchen extensions, dining areas or garden rooms.

Flat Roof Lantern Benefits

A flat roof lantern can instantly brighten your home by bringing in far more natural light than standard aluminium windows, helping reduce daytime electricity use and improving overall energy efficiency.

The additional height and glazed surface area also encourage better airflow, allowing warm air to escape and fresh air to circulate — especially useful in open-plan kitchens, dining rooms and extensions. With the right glazing, roof lanterns for flat roofs create a brighter, more comfortable living environment all year round while enhancing the architectural style of your space.

Fancy an alternative style

Alongside our flat roof lights, we also offer a range of stunning alternatives, including aluminium roof lanterns and circular rooflights for contemporary and traditional homes. If you’d like to explore different styles, browse our full collection online or speak with our friendly team for guidance on choosing the best option for your space.

View Roof Lanterns

Frequently Asked Questions

What is a flat roof lantern?

A flat roof lantern is a stylish architectural feature designed for flat or low-pitched roofs (under 15°). Typically rectangular or square in shape, these glass roof lanterns feature a raised ridge or pyramid-style design that allows natural light to flood into the space below. Ideal for extensions, kitchens, or dining rooms, they add height, brightness, and a stunning focal point to any property.

Are flat roof lanterns easy to maintain?

Yes. Our flat roof lanterns feature self-cleaning or easy-clean glass, reducing the need for frequent maintenance. A quick wipe with warm, soapy water keeps them clear and bright all year round, making them a low-maintenance glazing solution for modern homes.

Will a flat roof lantern improve ventilation?

It can. If you choose an opening flat roof lantern, it will help significantly improve ventilation and airflow. Warm air naturally rises, so when the lantern vents are open, it allows heat and stale air to escape — creating a cooler, fresher indoor environment.

What are the benefits of flat glass roof lanterns?

Flat roof lanterns offer numerous benefits:

Maximise natural light, reducing the need for artificial lighting and lowering energy costs.

Enhance kerb appeal and add a touch of architectural elegance.

Increase property value by up to 10% through aesthetic improvement.

Provide a sleek, modern look that complements both traditional and contemporary homes.

Can I install a flat roof lantern on a modern home?

Absolutely. Flat glass roof lanterns suit modern and contemporary architecture perfectly. Their clean lines, minimalist frames, and geometric form complement modern design aesthetics and integrate seamlessly into flat roof extensions or open-plan spaces.

Will I need planning permission for a flat roof lantern?

In most cases, planning permission isn’t required as roof lanterns typically fall under permitted development. However, if your lantern extends above the highest part of your existing roof, or if your home is listed or in a conservation area, you’ll likely need approval. Always check with your local planning authority before installation.

What finance plans are available?

You can choose between:

Buy Now, Pay in 30 Days – Receive your order first and pay up to 30 days later.

Pay Over 3 Months – Split your purchase into three equal, interest-free payments for easier budgeting.

Receive exclusive discounts subject to approval*

Discount automatically applied at checkout for customers who have a trade account. Please note your application is subject to approval and must be authorised before you receive your trade discounts. Conditions apply.