pitched roof skylight 600 x 1500 mm energy efficient design with high performance glazing
600 x 1500 mm Skylight, Pitched Roof, Triple Glazed, Frameless, 47.40kg, UV 0.9 Original price was: £518.32.Current price is: £382.57. incl. VAT
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pitched roof roof window 600 x 2000 mm frameless design with high performance glazing
600 x 2000 mm Skylight, Pitched Roof, Triple Glazed, Frameless, 62.40kg, UV 0.9 Original price was: £642.67.Current price is: £511.35. incl. VAT

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

(11 customer reviews)

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

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Make the most of our limited-time deal before it’s gone for good when the timer runs down.

Details:

Engineered Leakproof Design – Reliable in Any Weather
Suitable for: Roof slopes from 6° up to 45°

* Glazing Type: Triple Glazed
* Internal glass size: 600 x 1800 mm
* U Value: 0.9 W/m²K
* G Value: 58%
* Noise-proofing value: 39 dB
* Free delivery within London (M25)
* Nationwide Delivery
* 20-Year Warranty

⚠️ Important Notice

Some suppliers cut costs by using thin glass in large rooflights — this can cause sagging and water pooling.
Our tests show that reinforced, thicker glass is essential for safety and durability.

At Saris-Extensions, every rooflight is built to UK standards, ensuring lasting strength and peace of mind.

PDFs for Download:

ukca- certificate

Sold By Manufacturer

Saris Extensions
Saris Extensions
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matthew Kircher profile picture
matthew Kircher
29 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Used Saris extensions twice Very happy both times
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Bobby Lush profile picture
Bobby Lush
20 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
The delivery driver was excellent and helpful too
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S S profile picture
S S
15 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 profile picture
Oliver Rowe
6 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 profile picture
enquiries Hall Build
11 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 profile picture
Mirsad Bakalovic
9 July 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Gabi - Excellent service with flexible delivery arrangement.
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Shirley Bunker profile picture
Shirley Bunker
30 June 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 profile picture
Alan Alan
28 June 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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 profile picture
rob ballantyne
9 June 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Great delivery. Gabi was super helpful and polite. Very happy!
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bharat malhotra profile picture
bharat malhotra
20 May 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Fast delivery including good prices
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Dan Terpea profile picture
Dan Terpea
31 March 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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!
Posted on Google Google
Camelia Pop profile picture
Camelia Pop
31 March 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Good product, fast delivery, good communication. Gabi was very helpful, done a great job! Thanks
Posted on Google Google
Romain Kitesurf profile picture
Romain Kitesurf
26 February 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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
Posted on Google Google
Dean Livingstone profile picture
Dean Livingstone
26 February 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
"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!"
Posted on Google Google
Karyn Gibson profile picture
Karyn Gibson
25 February 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
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!

2 in stock

extended skylight upstand 600 x 1800 mm insulated OSB base for pitched glazing
Insulated OSB Upstand 600 x 1800 mm (for Pitched roof)

Available on backorder (Delivery within 2-3 weeks)

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Original price was: £235.01.Current price is: £195.84. incl. VAT
Skylights1 Pitched Roof Skylight Blinds - 600 x 1800mm
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installation-kit-pitched-roof-skylights-tiled-roof-600x1800
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£160.62 incl. VAT
Foam Rope - Structural Glazing Tape – 9mm Thick (7.5m Rolls)
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£18.41 incl. VAT
Weatherproofing-Sealant-for-skylights-installation-rooflights
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£16.25 incl. VAT
Easy-Trim-Lead-Flashing-Textured-450mm-x-5m-Roll-Grey
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£96.35 incl. VAT
self-cleaning-liquid-smart-glass-bottle
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£18.90 incl. VAT
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Weight56.4 kg
Dimensions of packaging55.0 × 10.0 × 55.0 cm
BrandSaris-Extensions
ManufacturerSaris-UK Ltd
ColorClear
Size600×1800

Bundle Up and Save upto 15% 

Original price was: £548.62.Current price is: £393.07. incl. VAT
Original price was: £235.01.Current price is: £176.26. incl. VAT
£160.62 incl. VAT
£160.62 incl. VAT
Original price was: £1,104.87.Current price is: £890.56. incl. VAT
For 3 items
SPECIFICATIONS

Pitched Roof Skylight / Rooflight 600 x 1800 mm

Our pitched roof skylights are manufactured to the highest standard making them frameless from the inside and out. They are easily installed with lead flashing, that’s cut on-site that is suitable for all roofs. As they are frameless internally they let in more light.

This high-performance, non-opening frameless skylight is triple glazed with 6mm toughened, self-cleaning glass and a U Value of only 0.9 W/m²K. The internal quoted glass size is 600 x 1800 mm, see the structural diagram below.

When purchasing a pitched roof skylight for a tiled roof from us it is very simple.

All our skylights come triple-glazed as standard and have solar protection.

The upstand is formed with the same opening as you can see in our drawings.

All you need to add is the flashing of your choice in our accessories section.

The flashing is then wrapped around your upstand sealing the upstand to your roof tiles.

Make sure you have added the right amount of flashing, the full circumference of your skylight will require flashing.

Our rolls come in 7.5-meter lengths. Let’s say you have bought a 1000 x 2000mm skylight you then require a total of 6 meters as you have 2x 1 meter sides and 2x 2 meters becoming a total of six lineal meters therefore one roll of flashing will be required.

 

  • Glazing Type: Triple Glazed
  • Internal Glass Size (QUOTED): 600 x 1800 mm
  • External Glass Size: 800 x 1900 mm
  • Top Glass Pane:6 mm Planibel Clearlite / Thermally toughened glass BS EN 12150
  • Spacer Type: 15mm Black Warm Edge
  • Air Gap: 15mm 90% Argon Filled
  • Middle Glass Pane:4 mm Planibel Clearlite / Thermally toughened glass BS EN 12150
  • Bottom Glass Pane: Stratobel Clearlite 44.2 iplus 1.1 / Laminated glass with Low-E coating EN 14449
  • U Value: 0.9 W/m²K
  • G Value: 58%
  • Net Weight: 56.40kg
  • Self-Cleaning: YES
  • UV Protected: YES
  • Clear Tint

Safety and Compliance: Choosing the Right Skylight

When it comes to choosing a roof light for your home, we know that safety is an important deciding factor.

This product conforms to British Standards & Building Regulations and has all Safety Markings.

It is CE marked which is a certification mark that indicates conformity with the relevant EU directives and standards for products sold within Europe.

Our Skylights can be installed at a maximum pitch of 45 degrees.

Installation Specifications and Recommendations:

  • Internal Dimensions: It's important to note that the top pane of glass includes a black border, extending the external dimensions of the unit by 200 millimetres in each direction.
  • Creating the Opening: When preparing for installation, allow an additional 10 millimetres internally from upstand to upstand for proper fitting. For example, for a 600 by 900 unit, the opening should be 610 by 910 millimetres internally.
  • Upstand Construction: We recommend constructing the upstand (the wooden framework housing the skylight) using two-by-one or two-by-two-inch timbers.
  • Foam Rope and Sealant Use: For optimal installation, install foam rope on top of the internal supporting baton, which helps level out weight discrepancies and stress on the glass. We advise using Dowsil 791 black-coloured sealant to create a watertight perimeter around your upstand. Please note that acrylic sealants are not compatible with our units and should not be used.

Find Your Perfect Fit with Our Custom Size Skylight Calculators

Explore the world of Pitched Roof Skylights

At Saris-Extensions, we combine elegance with cutting-edge technology. These skylights are not just additions to your roof; they are masterpieces of design, enhancing the energy efficiency and aesthetic appeal of your home or office. Embrace the seamless integration of style and functionality with our Pitched Roof Skylights.

Best Price
20 Years Warranty
Guarantee Payment Safety
Self Cleaning
Clear Tint
UV Protected
Free Delivery within London (M25)
Аll Glass Panels
Safety Toughened and Laminated Glass
Made In EU
London Based Stock
Quick and easy installation
Step By Step installation guide
24/7 technical helpline
Additional information
Weight56.4 kg
Dimensions of packaging55.0 × 10.0 × 55.0 cm
BrandSaris-Extensions
ManufacturerSaris-UK Ltd
ColorClear
Size600×1800
SHIPPING

Free Delivery:

  • Available on all orders over £400 within the London (M25) area.

Delivery Times:

  • Standard Flat & Pitched Skylights: 3–6 working days.
  • Custom Sizes: 3–6 weeks for production and shipping (free delivery).
  • Roof Lanterns, Framed Skylights, Electric Opening Skylights, Walk-On Skylights, Skylight Blinds: 10–14 working days.
  • Glass Balustrades & Juliet Balconies: 4-8 weeks (after approval of detailed drawing)

Delivery Arrangements:

  • Delivery is scheduled Monday to Friday, 8 am to 5 pm.
  • We’ll contact you to arrange a delivery time once payment is complete.

Shipping Options:

  • Enter your shipping address at checkout to view options.
  • Within M25: Our drivers ensure safe delivery. We ask that you or your builders are present to accept the order.
  • Outside M25: We use external couriers. They will contact you to schedule delivery.
  • Extra Economy Shipping: Available for all areas except Northern Ireland and Scotland. In rare cases, you may need to pick up your order from a nearby depot.

Important Notes:

  • Products range from 10kg to 280kg. You may need 2–6 people to assist with unloading.
  • We are not liable for any damage during unloading, as it’s the customer’s responsibility.
  • If no one is available to receive the delivery, we will try to contact you. If unreachable, the order will be returned to our warehouse.
INSTALLATION GUIDE

Step-by-step Installation Guide

Over the years, we've observed numerous errors and poor practices in skylight installations that have led to persistent issues. To help you avoid these pitfalls, we're eager to share our accumulated expertise and knowledge. We highly recommend checking our detailed installation materials to ensure you apply the best practices for a flawless and durable installation.

 

Structural opening – provided By builder

When selecting sizes for our Skylights, please note that the listed dimensions correspond to the bottom (internal) glass panel. Each skylight's top panel extends an additional 100mm on each side, making the overall externally visible size 200mm larger in both width and length. This design ensures a robust, weather-resistant seal while maximizing the internal visibility and light entry of your skylight installation.

 

Why Professionals Trust Our Upstands

No Water Build-Up

Built-in 6° slope ensures water runs off effortlessly

Thermal Protection

40mm insulation core with 15mm OSB for maximum efficiency

Quick & Accurate Installation

Tailored in advance to pair perfectly with your Saris-Extensions skylight

Tailored to Your Home: Custom-Sized Skylight Solutions

If our standard stock sizes don't quite match your project’s requirements, there is no need to worry—we have the perfect solution.

At Saris Extensions, we specialize in providing high-quality, bespoke skylights designed to fit your specific architectural needs. Simply use our online custom size calculator to insert your opening dimensions and receive an instant, transparent quote. From precision engineering to your doorstep, we make it easier than ever to receive and fit a skylight that is perfectly scaled for your space.

Before & After

See the remarkable difference with a Saris-Extensions skylight.

  • Modern, frameless elegance

  •  Exceptional insulation and UV defense

  • U Value: 0.9 W/m²K — superior thermal performance

One simple change. A world of transformation.

Choose Saris-Extensions.

Frequently Asked Questions

Are these rooflights energy efficient?

Yes. Our triple-glazed models deliver U-values as low as 0.9 W/m²K, helping to reduce heat loss, lower energy bills, and comply with Part L Building Regulations.

Is the skylight safe and shatter-resistant?

Absolutely. Every unit uses toughened outer glass and laminated inner glass, ensuring excellent durability and meeting all relevant UK and EU safety standards (EN12150 / EN14449).

Will this rooflight work with my roof type?

Yes. Designed for versatility, our rooflights fit pitched roofs between 6° and 45°, and are fully compatible with both tile and slate roofing materials. We also offer options for flat roofs.

Can this skylight be installed on any roof construction?

Yes. Whether your roof is warm or cold constructed, our skylights are suitable and designed for flexible installation.

Is the skylight guaranteed leak-proof?

Yes — when installed using our official flashing kit and following the provided instructions, the unit is fully watertight and weather-sealed.

Do the rooflights come with self-cleaning glass?

Yes. All models include self-cleaning glass as standard, helping to reduce dirt accumulation and maintain clear views with minimal maintenance.

What’s included when I purchase a skylight?

Each product comes with the glazed skylight unit and installation instructions. Optional items such as flashing kits, upstands, and blinds are available to order separately.

Can I order custom-sized rooflights?

Yes. We offer a full made-to-measure service, allowing you to order rooflights tailored to your exact dimensions. Contact us to request a custom quote.

How fast is delivery?

Standard sizes are dispatched within 5–10 working days. Custom and made-to-measure orders typically take 3–5 weeks. All orders are shipped via tracked and insured delivery

What warranty is included?

Our rooflights are backed by a robust 20-year glazing guarantee, giving you complete confidence and long-term protection.

Reviews

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11 reviews
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11 reviews for 600 x 1800 mm Skylight, Pitched Roof, Triple Glazed, Frameless, 56.40kg, UV 0.9

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  1. James Cordy –

    Great service and the best priced. Very helpful with order queries. Will be using again.

  2. George Phill –

    Amazing quality skylights and speedy delivery. Customer service was top-notch. The variety of sizes ensured a perfect fit for our bedroom. It’s so much brighter now!

  3. Dan Scott –

    High-quality skylights, delivered quickly. Customer support was fantastic. The range of sizes available made it easy to choose the right one. Our bedroom is now flooded with natural light – amazing!

  4. Poppy Ainsworth –

    This roof window is stylish, sturdy, and makes the whole space feel bigger!

  5. Lucas Telford –

    The quality is top-notch! Our pitched roof window has exceeded all our expectations.

  6. Sophia Ellingham –

    We love how much natural light this roof window brings into our loft conversion!

  7. Ethan Kingsdale –

    The difference this pitched roof window has made in our home is unbelievable—so much more daylight!

  8. Lily Redfern –

    The insulation is great, and the quality is superb.

  9. Oscar Hadley –

    Easy to install, energy-efficient, and modern-looking. This pitched roof window is perfect for our extension!

  10. Jacob Warrington –

    The pitched roof window has brought in so much light, making our attic space feel open and fresh!

  11. Noah Perry –

    Super responsive customer care.

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