1200x1800mm Fixed Flat Roof Skylight | Frameless Triple Glazed Glass Rooflight | 0.9 U-Value | KingsView
Original price was: £ 988.00.£ 733.20Current price is: £ 733.20. incl. VAT
LIVE STATUS: 8 units remaining
KingsView 1200x1800mm Frameless Flat Roof Skylight – A premium 1.2m x 1.8m Triple Glazed unit designed to transform open-plan lounges and extensions. Featuring an industry-leading 0.9 W/m²K U-Value, this architectural skylight offers maximum thermal efficiency and breathtaking panoramic sky views.
Safe & Leakproof Engineering: Built with a 100% leakproof frameless design, our KingsView series uses thermally toughened and laminated safety glass. Weighing 106.8kg, this unit is engineered to prevent the sagging and water pooling often seen in thinner, lower-quality alternatives.
- Internal Size: 1200 x 1800 mm (1.2m x 1.8m)
- Glass Spec: Triple Glazed (Toughened & Laminated Safety Glass)
- Performance: 0.9 W/m²K U-Value & 39dB Sound Reduction
- Maintenance: Sunlight-activated Self-Cleaning coating
- Compliance: UKCA Certified & British Building Regs Compliant
- Delivery: Fast UK shipping direct from the manufacturer
The ultimate daylight solution for modern living. Includes a 20-year warranty and a sleek, edge-to-edge glass finish for a truly contemporary look.
8 in stock (can be backordered)
9 in stock (can be backordered)
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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.
Flat Roof
Frameless Triple Glazed
Skylights In Stock
Our Flat 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
Premium Flat Roof Skylights
Thinking about adding a flat roof windows skylights but worried about heat loss? Our Flat Roof Skylight 1200 x 1800 mm features an impressive U-value of 0.9 W/m²K, thanks to its triple-glazed units and warm edge spacer technology. This provides superior insulation, keeping your space warm in winter and cool in summer, while allowing in abundant natural light.
Why Choose Our Frameless Flat Roof Windows
- Energy Efficiency: Experience outstanding thermal performance with our triple-glazed units and warm edge spacer technology, resulting in a U-value of 0.9 W/m²K for year-round comfort and reduced energy expenses.
- Unobstructed Views: The frameless design maximizes natural light penetration and offers breathtaking panoramic views of the sky.
- Self-Cleaning Feature: Enjoy easy maintenance with a sunlight-activated self-cleaning feature that keeps your glass sparkling clean.
- Versatile Installation: Ideal for flat roofs with pitches between 6° and 45°, making it suitable for various home styles.
- Quiet Ambiance: Effective soundproofing ensures a peaceful indoor environment.
- UV Protection: Safeguards your interior from harmful UV rays.
- Safety First: Built with safety-toughened glass for enhanced security.
- Regulation Compliant: Fully compliant with British Standards & Building Regulations and carries the CE safety marking.
Essential Skylight Accessories
Enhance your flat roof skylight experience with these must-have accessories for smooth installation and optimal performance:
- Skylight Blinds for Flat Roof Window 1200x1800mm: Custom-fit blinds provide light control and privacy, perfectly tailored to your skylight size.
- Installation Kit for 1 x Flat Roof Skylight 1200x1800mm: A comprehensive kit that ensures secure and hassle-free installation for optimal performance and durability.
- Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls): Offers effective sealing and structural support during installation.
- Weatherproofing Sealant (Silicon) – DOWSIL™ 791, 310ml: Creates a durable, weatherproof seal around your skylight, keeping the elements out.
- Self-Cleaning Liquid Smart Glass Bottle 15ml: Replenishes the self-cleaning properties of your skylight, ensuring easy maintenance and spotless glass.
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 tailored to your specific needs. No matter the project, our flat rooflights provide exceptional thermal performance with innovative features like triple glazing, ensuring your space remains comfortable year-round. They also flood your space with beautiful natural light, creating a brighter and more inviting atmosphere. Enhance any setting with the sleek, modern design of our flat rooflights.
Download our full product catalogue to explore our extensive Flat Roof skylight range and find the perfect solution for your project. Ready to discuss your skylight needs? Contact us today!
🗺️ Where to Buy 1200 x 1800 mm Roof Lights Near Me
Searching for a 1200 x 1800 mm roof light near you? Also referred to as a 1.2 x 1.8 m rooflight, this size is a brilliant match for larger interior zones like open-plan lounges, rear extensions, or creative studios. We specialise in frameless rooflights that bring more daylight, better efficiency, and a polished finish to every space.
✅ 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
Our rooflights are made in-house with technical precision, finished for visual harmony, and delivered quickly across the UK—ready to install and impress.
| Weight | 108 kg |
|---|---|
| Dimensions | 205 × 10 × 145 cm |
| Brand |
KingsView |
| Internal Size |
1200 x 1800 mm |
| External Size |
1400 x 2000 mm |
| Glazing Type | |
| Glass Tint | |
| Self-Cleaning: |
Yes |
| Roof Type |
Flat Roof ,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 |
4 reviews for 1200x1800mm Fixed Flat Roof Skylight | Frameless Triple Glazed Glass Rooflight | 0.9 U-Value | KingsView
Step-by-Step Installation
Ensure your project meets British Building Regulations with our verified fitting process[cite: 1, 4].
Structural Prep
The upstand opening must allow for a 5mm tolerance on each side. The internal distance must be 10mm larger than the quoted size[cite: 40].
Support Timber
Install 25x50mm timber support[cite: 49]. Ensure the top of the support for triple glazed units is exactly 42mm below the upstand top.
Seal & Level
Apply foam rope on the timber support to level discrepancies and prevent glass cracking[cite: 69]. Failure to use foam rope voids your warranty[cite: 70, 83].
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.
The Direct Advantage
Elite glazing expertise and factory-backed support at every stage.
Rapid Logistics
Free UK shipping & next-day dispatch.
Manufacturer Direct
Direct accountability & elite integrity.
20-Year Security
Structural warranty & secure checkout.
Technical Aftercare
Dedicated support for every spec.
Our Roof Windows in Action
Photos from completed projects by our clients
Why Choose Our Insulated OSB Upstands?
Perfect Pitch for Water Drainage
Built-In 6° Pitch for perfect drainage
Exceptional Insulation
High Insulation with 40mm core and 15mm OSB
Ready-to-Install, Precision-Cut Fit
Factory-made to match our skylights exactly
Brighten Your Home & Save More – Bundle & Save!
Upgrade with our triple-glazed flat roof skylights for maximum light and energy efficiency.
Add the Insulated Upstand and save up to 7% with our bundle offer!
✔️ Boost thermal performance
✔️ Cut energy costs
✔️ Enjoy lasting durability
Get the complete solution at a better price – bundle today!
Get a Bundle with extra 7% Discount on Skylight and Upstand
1200x1800mm Fixed Flat Roof Skylight | Frameless Triple Glazed Glass Rooflight | 0.9 U-Value | KingsView
KingsView 1200x1800mm Frameless Flat Roof Skylight – A premium 1.2m x 1.8m Triple Glazed unit designed to transform open-plan lounges and extensions. Featuring an industry-leading 0.9 W/m²K U-Value, this architectural skylight offers maximum thermal efficiency and breathtaking panoramic sky views.
Safe & Leakproof Engineering: Built with a 100% leakproof frameless design, our KingsView series uses thermally toughened and laminated safety glass. Weighing 106.8kg, this unit is engineered to prevent the sagging and water pooling often seen in thinner, lower-quality alternatives.
- Internal Size: 1200 x 1800 mm (1.2m x 1.8m)
- Glass Spec: Triple Glazed (Toughened & Laminated Safety Glass)
- Performance: 0.9 W/m²K U-Value & 39dB Sound Reduction
- Maintenance: Sunlight-activated Self-Cleaning coating
- Compliance: UKCA Certified & British Building Regs Compliant
- Delivery: Fast UK shipping direct from the manufacturer
The ultimate daylight solution for modern living. Includes a 20-year warranty and a sleek, edge-to-edge glass finish for a truly contemporary look.
Inclined Insulated Upstand for Flat Roof Skylight 1200 x 1800 mm
Installation kit for 1 x Flat Roof Skylight 1200x1800mm
- Weatherproofing Sealant (Silicon) – DOWSIL™ 791, 310ml - 3pcs
- Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls) - 1pcs
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
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. 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.
Reviews
4 reviews for 1200x1800mm Fixed Flat Roof Skylight | Frameless Triple Glazed Glass Rooflight | 0.9 U-Value | KingsView
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The flat roof windows have transformed our interior. The quality is incredible and the delivery was quick.
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The quality of the flat roof skylights is incredible. The customer service is very friendly and professional.
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The flat roof windows have given new life to our house. The delivery was quick and the customer service was excellent.
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Our flat roof skylight in Leeds has given our home such a modern look. The natural light it lets in has completely transformed our kitchen.
Henry Lewis –
The flat roof windows have transformed our interior. The quality is incredible and the delivery was quick.
Samuel Allen –
The quality of the flat roof skylights is incredible. The customer service is very friendly and professional.
Chloe Wright –
The flat roof windows have given new life to our house. The delivery was quick and the customer service was excellent.
Sinead McCrory –
Our flat roof skylight in Leeds has given our home such a modern look. The natural light it lets in has completely transformed our kitchen.