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Pitched Roof Skylight 400 x 400 mm Original price was: £ 274,00.Current price is: £ 201,00. incl. VAT

Pitched Roof Skylight 300 x 300 mm

Original price was: £ 185,00.Current price is: £ 120,00. incl. VAT

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Regal Glass Group: A trusted manufacturer of premium roof windows

Type: Fixed Frameless Pitched Roof Skylight
Internal Size: 300 x 300 mm
External Size: 500 x 500 mm
Glazing Type: Triple Glazed
Net Weight: 6.45kg
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.

This item: Pitched Roof Skylight 300 x 300 mm
Original price was: £ 185,00.Current price is: £ 120,00. incl. VAT
Original price was: £ 185,00.Current price is: £ 120,00. incl. VAT
£ 154,00 incl. VAT
£ 154,00 incl. VAT
£ 24,00 incl. VAT
£ 15,00 incl. VAT
£ 115,00 incl. VAT
£ 115,00 incl. VAT
£ 30,00 incl. VAT

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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.

Introducing the Regal Glass Group’s newest addition to our celebrated line of skylights: the Pitched Roof Skylight 300 x 300 mm. Designed with the sophisticated homeowner in mind, this skylight is not just a window to the sky; it’s a gateway to a brighter, more vibrant home.

Crafted by the Regal Glass Group, with over 20 years of mastery in the realm of skylights, our Pitched Roof Skylight is more than just a product—it’s a testament to our dedication to quality, innovation, and the satisfaction of our customers. Our in-house production ensures that every skylight meets our rigorous standards, ensuring that you receive a product that’s not only beautiful but built to last.

The Pitched Roof Skylight stands out with its frameless, minimalistic design, which not only enhances the aesthetic appeal of your home but also maximizes the influx of natural light, transforming your space into a haven of warmth and openness. The triple-glazed units, complete with a 15-millimeter warm Edge spacer filled with Argon gas, provide unparalleled thermal efficiency, boasting a U-value of 0.9 W/m²K. This means your home remains a comfortable sanctuary, maintaining an ambient temperature throughout the year while minimizing energy costs.

But it’s not just about warmth; our skylight windows offer unmatched UV protection, safeguarding your family and interiors from the sun’s harmful rays. The safety toughened glass ensures durability and peace of mind, while the self-cleaning feature, activated by sunlight, keeps your view pristine and unobstructed, without the hassle of frequent maintenance.

Privacy, sound reduction, and eco-friendliness are at the core of our design philosophy. The Pitched Roof Skylight not only enhances your privacy but also significantly reduces outdoor noise, ensuring a tranquil indoor environment. Our commitment to sustainability is reflected in our eco-friendly packaging, aligning with the values of environmentally conscious homeowners.

Installation is a breeze, thanks to our easy installation system, designed to fit seamlessly into pitched roofs with a recommended pitch of 6 to 45 degrees. With a wide range of sizes in stock, we’re equipped to meet the diverse needs of our customers. And for those seeking something truly unique, we offer custom skylight solutions tailored to your specific requirements.

Each skylight comes with a 20-year warranty, a testament to our confidence in the durability and performance of our products. Conforming to British Standards & Building Regulations, our skylights bear the CE mark, ensuring they meet the relevant EU directives and standards for products sold within Europe.

At Regal Glass Group, we understand that every home is a personal sanctuary. That’s why our Pitched Roof Skylights are designed not just to illuminate your space but to enhance your living experience, providing comfort, efficiency, and a touch of elegance. With our extensive range of standard sizes and the option for custom designs, the perfect skylight for your home is just within reach.

Discover the transformative power of natural light with Regal Glass Group’s Pitched Roof Skylight. It’s not just about seeing the sky; it’s about redefining your space, bringing the beauty of the outside world into your home, and solving the everyday problems of lighting, insulation, and aesthetics with an elegant, efficient solution. Illuminate your world today with a touch of regality.


6 , 45 kg


55 × 10 × 55 cm


Regal Glass



Internal Size

300 x 300 mm

External Size

500 x 500 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)]

UV transmission : τuv [%]


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




Customer Reviews

1 review

1 review for Pitched Roof Skylight 300 x 300 mm

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  1. Jack West

    The skylight works as expected. Nothing special, but functional.

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