Triple Glazed Skylights for Flat Roofs

We are manufacturing and selling architectural quality Triple Glazed Rooflights at the best prices on the market, backed by a 20-year warranty. Specifically designed for flat roofs and low-pitch installations from 6° to 45°, our skylights deliver exceptional energy efficiency, durability, and modern frameless aesthetics.

All our off-the-shelf products are available for Next Day Delivery within the London area (M25) or Free of charge within 3–6 working days across the UK.

Saris Extensions
Saris Extensions
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matthew Kircher profile picture
matthew Kircher
29 October 2026
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Used Saris extensions twice Very happy both times
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Bobby Lush
20 October 2026
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The delivery driver was excellent and helpful too
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S S profile picture
S S
15 October 2026
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My wife and I came across Saris Extensions while searching for skylights for our extension, and although we were initially unsure about the level of service and the quality of the roof lights, our experience has been exceptional. The service was outstanding, and the product style and quality are genuinely beautiful. We initially ordered 2no 1000 x 1000 rooflights with installation kits. As our extension roof progressed, we contacted Saris Extensions to ask whether we could exchange both units for larger sizes. They agreed immediately, with only a minimal return fee and the simple requirement that the original products remained unopened. The entire process was seamless. Emre, who supported us from the initial purchase through to the exchange, was absolutely amazing — customer service at its best. Their delivery drivers were also fantastic, though it’s worth noting that you will need two people present to safely receive any glazing delivery. We will have to see how the product fares after installation, we have purchased their installation kit and will be following installation guide as per their website. I will provide an update if we encounter any issues, but for now, based on service, communication and product style, we would not hesitate to recommend Saris Extensions. Purchased 800x1500 & 1000x1500
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Oliver Rowe
6 October 2026
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I bought a flat roof skylight from these guys and after a month of it being on my possession, on the day of fitment I found it to be cracked. I rang the support team and was told to email them. I sent an email with all relevant photos and had very quick responses. They dealt with it very professionally and were very helpful. I could not fault how they handled it.
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enquiries Hall Build
11 September 2026
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Really pleased with the skylights I ordered. They arrived exactly as expected and I’m very happy with the quality. I also wanted to mention the delivery driver, who was extremely polite, friendly and helpful. He went out of his way to make sure everything was delivered safely and made the whole experience very easy. Great product and excellent service from start to finish. Would definitely recommend.
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Mirsad Bakalovic
9 July 2026
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Gabi - Excellent service with flexible delivery arrangement.
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Shirley Bunker
30 June 2026
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Ordering was quick and easy. Ordered late on a Friday afternoon and was delivered on the Monday afternoon (although I paid the extra for 1-2 day delivery) now just got to wait and see what there like when in. But look good so far. Yes I would recommend so far. If fitting not so good I'll update my post. UPDATE 3yrs later fitting went well all measurements were accurate. They still look good and no leaks or discolouration or misting. Really happy with purchase.
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Alan Alan
28 June 2026
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Saris are great. The two delivery guys, Gaby and Paris, we're very helpful. They were very polite and took the 3 rooflighfs off the truck and placed them doiwn with care They spoke very politely to me and answered my questions. This is the 2nd time I've bought from Saris and I'm delighted with the service they give from order to delivery.
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rob ballantyne
9 June 2026
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Great delivery. Gabi was super helpful and polite. Very happy!
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bharat malhotra
20 May 2026
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Fast delivery including good prices
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Dan Terpea
31 March 2026
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I had an excellent experience with the delivery handled by Gabi! It was quite a complex transport, with a very large item that definitely required effort. However, thanks to Gabi’s experience, everything was managed flawlessly. The delivery went perfectly, and the item was smoothly brought inside the house. I wholeheartedly recommend Saris Extension – it was a very good deal at a great price. Once again, big thanks, Gabi!
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Camelia Pop
31 March 2026
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Good product, fast delivery, good communication. Gabi was very helpful, done a great job! Thanks
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Romain Kitesurf
26 February 2026
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Shafak and Toni were great on delivery today and helped us move the skylight safe inside the property as I was on my own. Great service and they called before to confirm delivery day
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Dean Livingstone
26 February 2026
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"I had a brilliant experience with Saris Extensions from start to finish. I ordered a flat roof skylight, and I was honestly blown away by how quickly it arrived. The packaging was incredibly impressive—it was clear they took great care to ensure such a fragile item reached me in perfect condition. An overall amazing ordering experience; I can’t recommend them enough!"
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Karyn Gibson
25 February 2026
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Gabi was an extremely helpful delivery driver who went above and beyond in what turned out to be a more complex job than first expected. Thoroughly professional and personable. Thank you!
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300 x 300 mm Skylight, Flat Roof, Triple Glazed, Frameless, 6.45kg, UV 0.9

Original price was: £138.98.Current price is: £127.62. incl. VAT

Available on backorder (Delivery within 2-3 weeks)

400 x 400 mm Skylight, Flat Roof, Triple Glazed, Frameless, 10.2kg, UV 0.9

Original price was: £247.66.Current price is: £213.95. incl. VAT

Available on backorder (Delivery within 2-3 weeks)

400 x 1500 mm Skylight, Flat Roof, Triple Glazed, Frameless, 34kg, UV 0.9

Original price was: £489.82.Current price is: £372.74. incl. VAT

8 in stock

400 x 2000 mm Skylight, Flat Roof, Triple Glazed, Frameless, 45kg, UV 0.9

Original price was: £622.59.Current price is: £430.84. incl. VAT

Available on backorder (Delivery within 2-3 weeks)

400 x 3000 mm Skylight, Flat Roof, Triple Glazed, Frameless, 66kg, UV 0.9

Original price was: £1,250.52.Current price is: £778.91. incl. VAT

4 in stock

500 x 500 mm Skylight, Flat Roof, Triple Glazed, Frameless, 14.85kg, UV 0.9

Original price was: £279.01.Current price is: £210.25. incl. VAT

1 in stock

500 x 1500 mm Skylight, Flat Roof, Triple Glazed, Frameless, 42kg, UV 0.9

Original price was: £557.65.Current price is: £398.66. incl. VAT

7 in stock

500 x 3000 mm Skylight, Flat Roof, Triple Glazed, Frameless, 80kg, UV 0.9

Original price was: £1,249.75.Current price is: £790.89. incl. VAT

4 in stock

600 x 600 mm Skylight, Flat Roof, Triple Glazed, Frameless, 20.40kg, UV 0.9

Original price was: £359.47.Current price is: £275.58. incl. VAT

34 in stock

600 x 900 mm Skylight, Flat Roof, Triple Glazed, Frameless, 29.40kg, UV 0.9

Original price was: £465.02.Current price is: £349.25. incl. VAT

21 in stock

600 x 1200 mm Skylight, Flat Roof, Triple Glazed, Frameless, 38.40kg, UV 0.9

Original price was: £547.57.Current price is: £398.66. incl. VAT

11 in stock

600 x 1500 mm Skylight, Flat Roof, Triple Glazed, Frameless, 47.40kg, UV 0.9

Original price was: £518.32.Current price is: £382.57. incl. VAT

5 in stock

600 x 1800 mm Skylight, Flat Roof, Triple Glazed, Frameless, 56.40kg, UV 0.9

Original price was: £548.62.Current price is: £436.74. incl. VAT

2 in stock

600 x 2000 mm Skylight, Flat Roof, Triple Glazed, Frameless, 62.40kg, UV 0.9

Original price was: £642.67.Current price is: £511.35. incl. VAT

3 in stock

600 x 2500 mm Skylight, Flat Roof, Triple Glazed, Frameless, 77.40kg, UV 0.9

Original price was: £824.50.Current price is: £703.63. incl. VAT

3 in stock

FLAT ROOF SKYLIGHTS

Discover Frameless Non-Opening Flat Roof Windows for Brightening Your Space

Explore our extensive collection of frameless, non-opening flat roof windows, perfect for illuminating any room with natural light. Whether you’re seeking a single frameless flat roof window to brighten up a cozy attic or multiple frameless flat roof windows to transform a sunroom into a vibrant sanctuary, we offer the ideal solution for your needs. Crafted from premium materials, each frameless flat roof window ensures durability and exceptional performance, providing years of enjoyment and energy efficiency.

Considering a stylish extension for your home? Incorporating frameless, non-opening flat roof windows into your house extension design can seamlessly integrate sunlight into new living spaces. Elevate your home with the timeless beauty of frameless, non-opening flat roof windows and brighten up your living spaces today.

Maximizing Natural Light and Energy Efficiency

Flat skylights offer numerous benefits that make them a popular choice among homeowners and architects alike.

Whether you’re looking to brighten up a residential or commercial building, our flat skylights are a perfect choice. With their sleek design and superior performance, they not only illuminate your interiors but also add a touch of elegance to any room.

Enhance the look and feel of your space with our flat skylights! Enjoy natural light all year round without worrying about energy costs, or having to replace them any time soon.

Welcome to our Flat Roof Skylights Category

Minimal, Frameless Design

Welcome to a world of elegance where every skylight in our range boasts a minimal, frameless design that seamlessly integrates into any architectural style. With these on your property, you can add a touch of elegance while inviting an abundance of natural light.

Outstanding Thermal Efficiency

Our skylights come triple-glazed, ensuring superior thermal performance. With an impressive U-Value of 0.9 W/m²K, these skylights will keep your home cosy in the winter and comfortably cool in the summer, helping you save on energy costs.

Noise-Proofing for Peaceful Living

To provide you with a serene indoor environment, our skylights offer a substantial noise-proofing value of 39 dB, helping keep unwelcome sounds at bay.

Electric Blinds for Every Size

To enhance the versatility of your space, we offer electric blinds for every skylight size. Control your interior lighting effortlessly and create the ambience you desire.

Easy Installation and Smart Glass Technology

With our provided installation kits, setting up your new skylight is as straightforward as it gets. We also introduce self-liquid smart glass in our product range. This innovative technology adjusts itself to control the light and heat passing through, enhancing your comfort and reducing energy costs.

Quality and Compliance

All our products are UK CA compatible, ensuring they adhere to the highest British standards. You can rest easy knowing that your new skylight is not just stylish but also safe and compliant.

Free Delivery and Nationwide Coverage

We provide free delivery within the London M25 area, and we’re proud to offer nationwide delivery. Wherever you are in the UK, our superior skylights can reach you.

Explore our Flat Roof Skylights Range Today

Browse our range of beautiful, functional, and energy-efficient skylights today and find the perfect solution to illuminate your space.