Flat Roof Skylight 1200 x 1800 mm, Fixed, Frameless, Triple Glazed, 106.80kg, UV 0.9 Original price was: £ 988,00.Current price is: £ 729,00. incl. VAT
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Pitched Roof Skylight 300 x 300 mm, Fixed, Frameless, Triple Glazed, 6.45kg, UV 0.9 Original price was: £ 185,00.Current price is: £ 120,00. incl. VAT

Custom Size Roof Window, Frameless Bespoke Skylight Calculator – Oversized

(21 customer reviews)

£ 100,00 incl. VAT

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  • Custom skylight suitable for flat and pitched roof 

    This is the internal glass size. (Quoted Size)

    Use the image above for a reference.

    Estimated Delivery is between 3 to 6 weeks

    *Width (300mm - 2700mm)
    *Length (1500mm - 5800mm)


    Please atach a file with a similar drawing so we can better understand your requirements, and sizes to avoid any mistakes

    • (max file size 100 MB)
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Description

Frameless Skylights Glass Performance

Experience the perfect blend of natural light, energy efficiency, noise reduction, and UV protection with our precision-engineered glass.

Modern Design
100%
Solar energy transmittance (G value): g [%] 65
65%
UV transmission : 0 Ď„uv [%]
0%
Light transmittance: Ď„v [%] 72
72%
Thermal transmittance (U value): : 0.9 [W/(m².K)]
Min 3.0 [W/(m².K)] / Max 0.1 [W/(m².K)] 70%
Shading coefficient: 0.66 SC
( Maximum SC 1.00 / Maximum SC 0.20 ) 42%
Sound Reduction: 39 dB (-2;-7)
( Maximum 40dB / Minimum 30dB ) 90%

Easy to replicate
Installation Guide

Dive into our user-friendly Installation Guide for a smooth skylight setup. Get the clarity you need, step-by-step.

Click below to explore the full guide.

Customer Reviews

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21 reviews
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21 reviews for Custom Size Roof Window, Frameless Bespoke Skylight Calculator – Oversized

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  1. William Jenkins

    Our vintage home in Stoke-on-Trent has been beautifully modernized with a custom-sized skylight from Regal Glass. Their bespoke service was exactly what we needed for the perfect fit. – William Jenkins

  2. Ava Martin

    Regal Glass transformed our Bradford home with their made-to-measure skylight. The bespoke design fits our unique roofline perfectly and floods our space with light.

  3. Sophia Wilson

    In our Norwich home, we needed a skylight that wasn’t off-the-shelf. Regal Glass’ custom service provided us with a bespoke skylight that fits like a glove and looks stunning.

  4. Connor Prince

    The custom rooflight we had made for our home’s extension is perfect. The team at Regal Glass Group was so helpful in creating a bespoke solution that fits our unique space. Highly recommend their expertise!

  5. Jessica Robson

    I needed a bespoke skylight for my studio’s awkwardly shaped roof, and Regal Glass Group delivered beyond expectations. The natural light has completely transformed my workspace.

  6. Florence Freeman

    The bespoke skylights were the perfect solution for our Edinburgh home’s unique roofline. The quality is top-notch, and the added natural light has brightened up our home beautifully.

  7. Kian Edwards

    Our made-to-measure roof window has been a standout feature in our property’s recent refurbishment.

  8. Henry Keane

    We bought an oversized roof window for our kitchen renovation. It has transformed the space with so much natural light. The window fits perfectly on our flat roof. Delivery was free and on time. Great service!

  9. Jessica Hawthorne

    Purchased an oversized roof window for our dining area. The amount of light it brings in is fantastic. Fits perfectly on our flat roof. Highly recommended!

  10. Michael Collins

    As a builder, I’ve ordered multiple skylights from Regal Glass Group. The latest was an oversized unit with Argon gas-filled spacers, which greatly improves thermal efficiency. Free delivery to London was a bonus. Excellent quality and service!

  11. Emma Preston

    Bought an oversized roof window for our new extension. It has made a huge difference in the amount of light we get. Fits great on our flat roof. The delivery was free and on time. Very pleased with the purchase.
    Emma Preston

  12. Benjamin Foster

    We recently bought an oversized roof window for our attic. It’s made a huge difference, letting in loads of natural light. The window was easy to install on our pitched roof. Delivery was free and quick. Very happy!

  13. Adam Rogers

    Purchased an oversized roof window for our dining area. The Argon gas-filled spacers and triple glazing provide excellent insulation. The self-cleaning feature is fantastic. Free delivery to Glasgow was on time. Highly recommended!

  14. James Parker

    Bought an oversized roof window for our attic. The thermal efficiency and sound reduction are fantastic. The self-cleaning feature keeps it looking great. Delivery was free to Oxford and quick. Very happy with the product and service.

  15. Thomas Watson

    We purchased a triple-glazed custom roof window for our loft. The thermal efficiency is incredible – the 0.9 W/m²K U-value makes a noticeable difference. The installation was straightforward, and the frameless design looks sleek. Delivery was free to Liverpool and on time. Highly recommend Regal Glass Group for their high-quality products and excellent service.

  16. Oliver Turner

    As a builder, I’ve ordered multiple roof windows from Regal Glass Group. The latest one was a walk-on window for a client’s project. It arrived quickly and the quality is outstanding.

  17. Harry Mitchell

    Installed an oversized roof window in our new extension. The 15mm warm Edge spacer filled with Argon gas is great for reducing heat transfer. The product is also CE marked, ensuring top quality. Free delivery to Glasgow was on time. Very pleased with the purchase.

  18. Jessica Williams

    I am very happy with the flat roof windows. The quality is premium and the delivery was very fast. Thank you!

  19. Sophie Taylor

    The flat roof windows arrived in perfect condition and the quality is exceptional. Very good purchase.

  20. Thomas Jones

    The flat roof windows have changed the light in our house. The customer service is very efficient.

  21. Matthew Wilson

    The quality of the flat roof windows is incredible. The customer service is very friendly and professional.

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