400x400mm Pitched Roof Window (6°-45°) | Fixed Triple Glazed Skylight | 0.9 U-Value | KingsView
Original price was: £ 274.00.£ 129.00Current price is: £ 129.00. incl. VAT
Don’t miss out on our limited-time offer — once the countdown ends, this exclusive deal will be gone for good.
3 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°
⚠️ Some sellers offer large skylights with thin glass to cut costs — but this is unsafe.
Tests show that large skylights need thicker, reinforced glass to prevent sagging and water pooling.
All Skylights.co.uk products are built to strict safety standards, ensuring lasting strength and reliability.
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 BS EN 12150
- Middle Pane: 6 mm iplus Thermally toughened glass with Low-E coating EN 12150
- Bottom Pane: Stratobel Clearlite 44.2 / Laminated glass 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 |
| Label |
Clearance |
Sold By Manufacturer
3 in stock (can be backordered)
Available on back-order
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Delivery & Return
Free delivery for custom size skylights and all orders delivered within London M25 area. For your convenience we offer Nationwide Delivery and Next Day Delivery Option.
Delivery Options Overview
Firstly, we have our own fleet of delivery vehicles and friendly, helpful drivers who are committed to getting your skylights to you in perfect condition. We can deliver your order directly to your home or business at a time that suits you. Our drivers will carefully unload your order and even help you move it to the desired location. Alternatively, we also offer TPN Connect delivery services. TPN Connect is a trusted delivery network that specializes in handling fragile and delicate items, like skylights. They work with reputable courier services to ensure that your order is delivered safely and securely to your door. When you place your order with us, you’ll have the option to choose the delivery method that works best for you.
Delivery Options
Standard Delivery
Get it in 3-6 working days
All orders within London M25. We deliver Monday to Friday between 8am-5pm.
Next Day
Delivery
The orders received until 12:00pm can be delivered on next working day. There is an additional charge.
Local Pickup
From Our Warehouse
You can pick it from our warehouse on this specific time: Monday to Friday between 8am-5pm.
Delivery Of
Custom Size Skylights
Delivered for free of charge. Usually takes between 3 to 6 weeks to be made and shipped over to UK.
How it Works?
Step 1
Order the Product and Receive Email with Order confirmation
Step 2
Update on your Delivery Date with Message or Call
Step 3
Wait for Your Order to Arrive
Step 4
Arange people to help you load of the skylight
Step 5
Accept your Delivery with our Drivers or Book Suitable Delivery Date with Depot.
Exchange or Return of Goods
A 25% restocking fee will be charged on all returned merchandise, unless defective.
Skylights1.com is not responsible for any labor costs, which occur as the result of the installation of wrong or defective parts. If your shipment arrives and appears damaged please inspect the package thoroughly and if the contents appear damaged please refuse the shipment. We will do everything we can to have a new order rushed out to you. Return ship fees are the responsibility of the customer. Refunds for returned items are processed within 10 working days.
Before placing an order, please make sure that you have chosen the correct unit size and have consulted your roofer in advance. If you have purchased the wrong size(s), we will have to cancel and refund the whole order. In this case we will deduct up to 5% transaction fee and in the cases when we have already sent your order, we will also deduct the return shipping fees. Please keep in mind that refunds are processed within 10 working days after units are returned to our warehouse.
The following items may be returned for a refund within 15 days of purchase:
- Merchandise that has not been removed from its original packing.
- Defective merchandise.
- Merchandise that was mispacked or was not shipped correctly.
- Merchandise that has not been installed.
Pitched Roof
Frameless Triple Glazed
Skylights In Stock
Payment Methods:
Transform your home with our triple-glazed flat roof skylights, maximizing natural light and thermal efficiency. Pair them with our separately sold Insulated Upstand, featuring 40mm core insulation to cut heat loss and lower energy costs.
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
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.