Pitched Roof Skylight 1200 x 1800 mm, Fixed, Frameless, Triple Glazed, 106.80kg, UV 0.9
Original price was: £ 988.00.£ 733.20Current price is: £ 733.20. incl. VAT
Prices go up when the timer hits zero.
14 in stock (can be backordered)
Skylights.co.uk: Trusted rooflights. Built to prevent leaks.
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
Roof Pitch Range: 6° to 45°
Premium Pitched Roof Skylights
Unveil the Beauty of Natural Light with the Pitched Roof Skylight 1200 x 1800 mm. This architectural marvel seamlessly blends design and functionality. Backed by over 20 years of experience crafting the finest skylights, we offer a variety of pre-fabricated sizes and custom options to ensure a perfect fit for your project.
Why Choose Our Frameless Pitched Roof Windows
Unmatched Benefits for Your Home:
- Exceptional Thermal Performance: Advanced triple-glazed units with a 15mm warm edge spacer filled with Argon gas achieve an impressive U-value of 0.9 W/m²K. Enjoy significant reductions in energy bills and year-round comfort in your home.
- Unobstructed Views: The frameless design maximizes natural light penetration, offering breathtaking panoramic vistas and a sleek, minimalist aesthetic that integrates seamlessly with your pitched roof’s architecture.
- Effortless Maintenance: Enjoy a spotless glass with our self-cleaning technology, activated by sunlight for minimal upkeep.
Additional Benefits:
- Versatile Installation: Suitable for roof pitches between 6° and 45°, making our Pitched Roof Skylights a great fit for many homes.
- Peaceful Ambiance: Provides effective soundproofing for a quieter indoor environment.
- Sun Safety: Offers protection against harmful UV rays, safeguarding your interiors.
- Safety First: Constructed with safety-toughened glass for ultimate peace of mind.
- Regulation Compliant: Meets all British Standards & Building Regulations and carries the CE safety marking.
Built to Last – Backed by a 20-year warranty, our skylights are a testament to superior durability and performance.
Essential Pitched Roof Skylight Accessories
Enhance your pitched roof skylight experience with these essential add-ons for a seamless roof window installation and optimal performance:
- Skylight Blinds for Pitched Roof Window 1200 x 1800 mm: Maintain complete control over light and privacy with blinds designed specifically for your skylight size.
- Installation Kit for 1 x Pitched Roof Skylight 1200x1800mm (for a slate roof) or Installation Kit for 1 x Pitched Roof Skylight 1200x1800mm (for a tiled roof): Everything you need for a secure and stress-free installation on a tiled or slate roof. Ensure a secure and stress-free installation with the appropriate kit for your roof material.
- Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls): Provides both effective sealing and structural support during installation.
- Weatherproofing Sealant (Silicon) – DOWSIL™ 791, 310ml: Ensures a watertight seal around your skylight for lasting peace of mind.
- Lead Flashing Smooth 45cm x 5m Roll Grey – Easy-Trim and Lead Flashing Textured 45cm x 5m Roll Grey – Easy-Trim: BBA-certified lead replacement for pitched roof applications.
- Self-Cleaning Liquid Smart Glass Bottle 15ml: Replenishes the self-cleaning properties of your skylight for effortless maintenance.
Our Pitched Roof Skylights are composed of three distinct glass panes, each contributing to the unit’s durability and thermal efficiency:
- Top Pane: 6 mm Planibel Clearlite / Thermally toughened glass, compliant with BS EN 12150
- Middle Pane: 4 mm Planibel Clearlite / Thermally toughened glass, compliant with BS EN 12150
- Bottom Pane: Stratobel Clearlite 44.2 iplus 1.1 / Laminated glass with Low-E coating, compliant with EN 14449
Choose Skylights.co.uk
We offer an extensive range of standard sizes, including the popular 1800 x 1200 mm skylight (also known as 1.8 x 1.2 m roof light), as well as fully custom skylights to suit your specific needs. No matter the project, our Pitched Roof Skylights provide:
- Exceptional Thermal Performance: Enjoy outstanding energy efficiency thanks to innovative features like triple glazing, keeping your space comfortable year-round.
- Natural Light Abundance: Bathe your space in beautiful natural light with our Skylights, creating a brighter and more inviting atmosphere.
- Elegant Design: Add a touch of sophistication to any setting with our sleek and modern Pitched Roof Skylights.
Download our full product catalogue to explore our extensive Pitched Roof Skylight range and find the perfect solution for your project.
Ready to discuss your skylight needs? Contact us today!
Are Pitched roof rooflights 1200 x 1800 mm energy efficient
Yes, our Pitched Roof Rooflights 1200 x 1800 mm are designed for energy efficiency and maximum thermal performance.
🗺️ 1200 x 1800 mm Pitched Roof Lights Near Me
Searching for a 1200 x 1800 mm pitched roof light near you? Also referred to as a 1.2 x 1.8 m rooflight, this generous size is ideal for pitched roof lounges, creative attic spaces, and vaulted extensions where natural light can dramatically enhance the atmosphere. We specialise in frameless pitched roof windows that deliver clarity, energy efficiency, and elegant architectural impact.
✅ Balanced Light Distribution for Spacious Rooms
✅ Trusted by UK Architects, Designers & Builders
✅ Certified to UKCA Standards – Fully Compliant
✅ Frameless Glazing – Pure Sky View with No Distractions
✅ Installer-Friendly Design with Expert Support Available
Each skylight is engineered for sloped roof performance, made in-house with precision, and delivered across the UK—ready to complete your project with a lasting sense of light and space.
| Weight | 108 kg |
|---|---|
| Dimensions | 55 × 10 × 55 cm |
| Brand |
Skylights.co.uk |
| Color |
Clear |
| Internal Size |
1200 x 1800 mm |
| External Size |
1400 x 2000 mm |
| Glazing Type | |
| Glass Tint | |
| Self-Cleaning: |
Yes |
| Roof Type |
Pitched Roof |
| Skylight Type |
Frameless |
| Top Glass Pane: |
6 mm Planibel Clearlite / Thermally toughened glass EN 12150 |
| Air Gap |
16 mm Argon 90% |
| Middle Glass Pane: |
4 mm Planibel Clearlite / Thermally toughened glass |
| Air Gap |
16 mm Argon 90% |
| Bottom Glass Pane: |
Stratobel Clearlite 44.2 iplus 1.1 pos.5 / Laminated glass with Low-E coating EN 14449 |
| Spacer Type |
15mm Black Warm Edge |
| U value |
0.9 [W/(m².K)] |
| Sound reduction - EN 12758 |
[dB] 39 (-2;-7) |
| Light transmittance: tv [%] |
72 |
| External light refection : ρv [%] |
17 |
| Internal light refection : ρvi [%] |
17 |
| Colour rendering index : Ra [%] |
97 |
| Solar energy transmittance : g [%] |
57 |
| Shading coefcient : SC |
0.66 |
| Selectivity |
1.26 |
| UV transmission : τuv [%] |
0 |
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14 in stock (can be backordered)
Available on back-order
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Our triple-glazed pitched roof skylights flood your space with natural light while delivering exceptional thermal efficiency. Pair them with our separately sold Insulated Upstand, featuring 40mm core insulation to minimize heat loss and cut energy costs.
Why Choose Our Insulated OSB Upstands?
Brighten Your Home & Save – Bundle and Save!
Upgrade to our triple-glazed pitched roof skylights for stunning natural light and superior energy efficiency.
Add our Insulated Upstand and save up to 7% when you bundle!
✔️ Maximize thermal performance
✔️ Lower your energy bills
✔️ Enjoy long-lasting durability
Get the complete, premium solution for less – bundle your skylight and upstand today!
Get a Bundle with extra 7 % Discount on Skylight and Upstand
Pitched Roof Skylight 1200 x 1800 mm, Fixed, Frameless, Triple Glazed, 106.80kg, UV 0.9
Original price was: £ 988.00.£ 681.88Current price is: £ 681.88. incl. VAT
Insulated Upstand for Pitched Roof Skylight 1200 x 1800 mm
Original price was: £ 207.20.£ 154.16Current price is: £ 154.16. incl. VAT
Before and After
See how a space is completely transformed with a Skylights.co.uk
- Maximum daylight
- Modern minimalist design
- Superior insulation & UV protection
One change. Total transformation.
Our Roof Windows in Action
Photos from completed projects by our clients
Quick Shipping
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Secure Payment
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Easy Returns
Hassle-free returns within 30 days.
20 Year Warranty
Enjoy peace of mind with our extensive warranty.
FAQ
Yes. This unit is designed for pitched roofs between 6° and 45° and is compatible with both tile and slate. We also supply flat roof options separately.
Our triple-glazed models offer U-values as low as 0.9 W/m²K (whole unit), helping you meet Part L regulations and reduce heat loss.
Yes. All our skylights come with self-cleaning glass as standard to reduce dirt buildup.
Yes. We offer made-to-measure rooflights to fit your exact requirements. Contact us for a custom quote.
Yes, our skylights can be installed on both cold and warm roof types.
Yes. When installed with our official flashing kit and according to instructions, it is guaranteed to be watertight.
Absolutely. Each unit uses toughened outer and laminated inner glass that complies with UK safety standards (EN12150 / EN14449).
We offer a 20-year guarantee on the glazing unit.
charlottebrooks@gmail.com –
We needed a very specific size for our skylight in Newcastle, and Skylights.co.uk delivered beyond expectations with their bespoke service. Our custom-sized skylight fits perfectly and looks amazing.
Harper Rose –
Partnering with KingsView has elevated my projects. Their pitched roof skylights add that ‘wow’ factor, making every space feel special and thoughtfully designed.
Elliot Kennedy –
Opted for a smaller skylight in our living room. It’s the perfect touch of modernity and elegance.
Luke Joshnon –
We needed a durable solution in Birmingham.. The skylight we got is not just beautiful but also tough against our unpredictable weather.
Mark Anderson –
Installed pitched roof windows in our B&B in the Lake District, and the guests love them! They bring in so much light and offer stunning views of the sky at night.
Harley Richardson –
Our dining room now feels like a fancy café thanks to the modern pitched rooflight from Kings View. It’s become our favorite spot for family dinners.
Charlotte McDougall –
Our new 1200×1800 mm skylight in the pitched roof kitchen has completely revitalized the heart of our home. Cooking under natural light has never been more enjoyable. Highly recommend for an instant upgrade.
Edwin Diaz –
In our home, the pitched skylight has been a standout feature, flooding our large living area with sunlight. KingsView Glass did an amazing job.
Leonard Markham –
Solid construction, quick arrival, and very helpful technical staff.