Pitched Roof Skylight 400 x 400 mm, Frameless Triple Glazed, 10.20kg, UV 0.9
Original price was: £ 274.00.£ 175.26Current price is: £ 175.26. incl. VAT
Prices go up when the timer hits zero.
10 in stock (can be backordered)
Skylights.co.uk: Trusted rooflights. Built to prevent leaks.
Type: Fixed Frameless Pitched Roof Skylight
Internal Size: 400 x 400 mm
External Size: 600 x 600 mm
Glazing Type: Triple Glazed
Net Weight: 10.2kg
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
Awaken your space to natural light with the innovative Pitched Roof Skylight 400 x 400 mm. This architectural marvel seamlessly blends stunning design with exceptional functionality. Backed by over two decades of expertise 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 Skylight Windows:
- 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 Vistas: The frameless design maximizes natural light penetration, offering breathtaking panoramic views and a sleek, minimalist aesthetic that complements your pitched roof’s architecture.
- Effortless Maintenance: Enjoy spotless glass with our self-cleaning technology, activated by sunlight for minimal upkeep.
- 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 skylight installation and optimal performance:
- Installation Kit for 1 x Pitched Roof Skylight 400x400mm (for a slate roof) or Installation Kit for Pitched Roof Skylight 400x400mm (for a tiled roof): Ensure a secure and stress-free installation with the appropriate kit for your roof material. See skylights.co.uk for details. Everything you need for a secure and stress-free installation on a tiled roof.
- 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
Choose us for all your skylight needs. We offer a variety of standard sizes readily available for purchase, along with 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 Skylight Windows, 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!
🗺️ Where to Buy 400 x 400 mm Pitched Roof Lights Near Me
Looking for a 400 x 400 mm pitched skylight near you? Also known as a 0.4 x 0.4 m roof light, this compact size is perfect for lofts, pitched extensions, and attic bathrooms—bringing in focused natural light where vertical windows can’t. We supply high-quality pitched roof windows designed for long-term reliability and discreet visual integration.
✅ 20-Year Warranty Included
✅ Installer Support Available
✅ Rated 5 Stars on Google
✅ Secure Checkout & Payment Options
✅ Custom Sizes Available
Our pitched skylights are fully UKCA-certified, weather-sealed for sloped roof performance, and compatible with a variety of roofing materials. We deliver nationwide, fast—so you can complete your pitched roof project with a roof light that’s built to last and made to fit.
| Weight | 10.2 kg |
|---|---|
| Dimensions | 55.0 × 10.0 × 55.0 cm |
| Brand |
Skylights.co.uk |
| Color |
Clear |
| Internal Size |
400 x 400 mm |
| External Size |
600 x 600 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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10 in stock (can be backordered)
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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 400 x 400 mm, Frameless Triple Glazed, 10.20kg, UV 0.9
Original price was: £ 274.00.£ 162.99Current price is: £ 162.99. incl. VAT
Insulated Upstand for Pitched Roof Skylight 400 x 400 mm
Original price was: £ 88.00.£ 65.47Current price is: £ 65.47. 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
Get it fast with our expedited shipping options.
Secure Payment
Shop safely with our secure online checkout.
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.
Dylan Foster –
Went with a small skylight and it’s incredible how it’s changed the dynamics of our living space.
Boris Grants –
Our quaint cottage now feels so much brighter thanks to the new pitched skylight from Kings View. The 400 x 400 size was just perfect for our cozy space.
Conor O’Neill, Belfast –
Opted for a small 400×400 mm skylight in our bathroom renovation. It provides just the right amount of light without compromising privacy. The installation team was courteous and tidy—excellent service all around.
Kieran Doyle –
Opted for a small 400×400 mm skylight in the tiny home office. It’s just the right amount of light for the space without any compromise on privacy. Plus, the energy efficiency is a bonus!
Fiona Gallagher –
We installed a pitched roof skylight in our townhouse, and it’s been a great update for our attic studio. The natural light it lets in is just astounding. Couldn’t be happier with the quality and the swift delivery!
Emily Clarke –
It’s a decent skylight. Fits well in our living room.