Pitched Roof Skylight 1200 x 1200 mm Original price was: £ 636,00.Current price is: £ 576,00. incl. VAT
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Pitched Roof Skylight 1500 x 1500 mm Original price was: £ 1.220,00.Current price is: £ 1.110,00. incl. VAT

Pitched Roof Skylight 1200 x 1800 mm

Original price was: £ 899,00.Current price is: £ 830,00. incl. VAT

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Regal Glass Group: A trusted manufacturer of premium roof windows

Type: Fixed Frameless Pitched Roof Skylight
Internal Size: 1200 x 1800 mm
External Size: 1400 x 2000 mm
Glazing Type: Triple Glazed
Net Weight: 106.80kg
U Value: 0.9 W/m²K
G Value: 58%
Light transmittance : τv [%] 72
Sound reduction (EN 12758): 39dB
UV transmission : τuv [%] 0

Experience the excellence of Regal Glass Group’s roof windows, featuring these impressive technical characteristics.

Original price was: £ 956,00.Current price is: £ 856,00. incl. VAT
£ 299,00 incl. VAT
£ 299,00 incl. VAT
£ 24,00 incl. VAT
£ 15,00 incl. VAT
£ 115,00 incl. VAT
£ 115,00 incl. VAT
£ 30,00 incl. VAT

Payment Methods:

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Easy Returns

Hassle-free returns within 30 days.

10 Year Warranty

Enjoy peace of mind with our extensive warranty.

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
Solar energy transmittance (G value): g [%] 65
UV transmission : 0 τuv [%]
Light transmittance: τv [%] 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.

Illuminate your home with the Pitched Roof Skylight 1200 x 1800 mm from Regal Glass Group, where our in-house production process ensures the highest quality skylights and pitched roof windows in the industry. With over 20 years of expertise in skylight innovation, this skylight window not only enhances your home with natural light but also showcases the meticulous craftsmanship and attention to detail that come from our commitment to manufacturing excellence.

At Regal Glass Group, every Pitched Roof Skylight is a product of our state-of-the-art in-house production facilities, allowing us to maintain strict quality control and innovate with precision. The 1200 x 1800 mm model, with its frameless, elegant design, is perfectly tailored to complement your pitched roof, maximizing daylight entry and transforming your living spaces into bright, welcoming environments. This skylight window is a reflection of our dedication to providing homeowners with superior products that are both aesthetically pleasing and functionally superior.

Our in-house production capabilities enable us to offer skylights with exceptional thermal efficiency, featuring triple-glazed units and a U-value of 0.9 W/m²K, ensuring your home remains comfortable and energy-efficient. 

Whether you are considering one of our standard sizes or interested in a custom skylight solution, Regal Glass Group’s in-house production expertise guarantees a skylight that meets your exact needs, enhancing your home with the timeless beauty of natural light.


108 kg


55 × 10 × 55 cm


Regal Glass



Internal Size

1200 x 1800 mm

External Size

1400 x 2000 mm

Glazing Type

Triple glazed

Glass Tint

Clear Tint



Roof Type

Pitched Roof

Skylight Type


Top Glass Pane:

6 mm Planibel Clearlite / Thermally toughened

Air Gap

16 mm Argon 90%

Middle Glass Pane:

4 mm Planibel Clearlite Thermally toughened

Air Gap

16 mm Argon 90%

Bottom Glass Pane:

Stratobel Clearlite 44.2 with iplus 1.1 pos.5

Spacer Type

15mm Black Warm Edge

U value

0.9 [W/(m².K)]

Sound reduction - EN 12758

[dB] 39 (-2;-7)

Light transmittance: tv [%]


External light refection : ρv [%]


Internal light refection : ρvi [%]


Colour rendering index : Ra [%]


Solar energy transmittance : g [%]


Shading coefcient : SC




UV transmission : τuv [%]


Customer Reviews

3 reviews

3 reviews for Pitched Roof Skylight 1200 x 1800 mm

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  1. charlottebrooks@gmail.com

    We needed a very specific size for our skylight in Newcastle, and Regal Glass delivered beyond expectations with their bespoke service. Our custom-sized skylight fits perfectly and looks amazing.

  2. Harper Rose

    Partnering with Regal Glass has elevated my projects. Their pitched roof skylights add that ‘wow’ factor, making every space feel special and thoughtfully designed.

  3. Elliot Kennedy

    Opted for a smaller skylight in our living room. It’s the perfect touch of modernity and elegance.

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