Flat Roof Windows

Bring natural light into your home with flat roof windows, the perfect solution for extensions, lofts, and modern builds. Sleek, durable, and energy-efficient, these windows maximise daylight while maintaining a clean, contemporary look.

Our flat roof windows are designed for easy installation, long-lasting performance, and optimal weather protection, transforming darker spaces into bright, inviting rooms. Ideal for kitchens, living areas, or offices, they create a warm and welcoming atmosphere.

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

Showing all 15 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

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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

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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

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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

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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

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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

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Flat Roof Windows, Pyramid Rooflights, Roof Lanterns, All Rooflights, Skylights & Roof Windows

Brett Martin Roof Lantern
From £1,020.60£850.50 Inc. VATEx. VAT

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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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Cheap Rooflights, Flat Roof Windows, Pyramid Rooflights, Roof Lanterns, All Rooflights, Skylights & Roof Windows

Guardian Roof Lantern
From £989.35£824.46 Inc. VATEx. VAT

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Flat Roof Windows, Pyramid Rooflights, Roof Lanterns, All Rooflights, Skylights & Roof Windows

Horizon Contemporary H1 Lantern Rooflight
From £827.33£689.44 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, 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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Flat Roof Windows, Pyramid Rooflights, Roof Lanterns, All Rooflights, Skylights & Roof Windows

Horizon Pyramid H1 Lantern Rooflight
From £829.40£691.17 Inc. VATEx. VAT

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Cheap Rooflights, Flat Roof Windows, Pyramid Rooflights, Roof Lanterns, All Rooflights, Skylights & Roof Windows

Horizon Traditional H1 Lantern Rooflight 2mx4m
£3,300.00£2,750.00 Inc. VATEx. VAT

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Flat Roof Windows, Pyramid Rooflights, Roof Lanterns, All Rooflights, Skylights & Roof Windows

Korniche Roof Lantern
From £911.48£759.57 Inc. VATEx. VAT

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Flat Roof Windows – Premium Solutions

Enhance your home with our high-quality flat roof windows designed to maximise natural light and improve energy efficiency. Crafted from toughened safety glass and durable aluminium frames, these rooflights deliver superior strength, clarity, and weather resistance. Perfect for home extensions, kitchens, and office spaces, they offer a sleek, modern finish that complements any architectural style. Each unit is precision-engineered for easy installation, low maintenance, and lasting performance — providing a bright, open atmosphere while keeping your property warm, secure, and stylish.

Energy-Efficient Flat Roof Skylights

Discover our range of energy-efficient flat roof skylights built to improve comfort and reduce energy costs. Using double or triple glazing technology, these rooflights ensure optimal thermal insulation and prevent heat loss all year round. Their minimalistic frame design creates uninterrupted views and maximises daylight, transforming any interior into a bright, welcoming space. Ideal for both residential and commercial applications, our skylights combine contemporary aesthetics with long-term durability — ensuring your property benefits from exceptional performance and stunning natural light.

Frequently Asked Questions

What are flat roof windows?

A flat roof window is a modern type of skylight or rooflight designed specifically for flat or low-pitched roofs. These windows are typically square or rectangular and made with durable materials such as polycarbonate, Opalite, or acrylic glazing. Flat roof windows allow natural light to flood into darker rooms like extensions, kitchens, or hallways, creating a brighter, more open living space while maintaining excellent thermal efficiency.

Can I install a flat roof window on my roof?

Yes — if your property has a flat or nearly flat roof, you can easily install a flat roof window. However, if your roof is pitched, you’ll need a pitched roof skylight instead. These are designed to suit sloped surfaces and typically open via a centre pivot or top-hinged mechanism, allowing for smooth operation, improved ventilation, and maximum daylight performance.

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.