1500x2500mm Extra Large Rooflight — Reinforced Triple Glazed Skylight — No Water Pooling — 0.9 U-Value
Original price was: £ 2.585.00.£ 1.757.79Current price is: £ 1.757.79. incl. VAT
LIVE STATUS: 15 units remaining
KingsView™ 1500x2500mm (Internal Size) Extra Large Architectural Rooflight
Transform your home with our flagship 1.5m x 2.5m frameless skylight. Engineered specifically for luxury kitchen extensions and grand open-plan living, this architectural unit fits a 1500x2500mm internal structural opening, providing a massive “infinity glass” view with maximum structural safety.
Why the KingsView™ Grand-Format Series Excels:
- Anti-Sag Engineering: Large 2.5m spans require superior rigidity. We use Reinforced Dual 8mm Toughened Safety Glass (Top & Bottom) to prevent “glass bowing.” This ensures a perfectly flat profile and Zero Water Pooling for total peace of mind.
- Superior Thermal Shield: Achieve an incredible 0.9 W/m²K U-Value. This triple-glazed unit is fully Building Regulations compliant (Part L), keeping your home warm in winter and cool in summer.
- Acoustic & Smart Glass: Blocks up to 39dB of external noise and features Sunlight-Activated Self-Cleaning technology—essential for maintaining large, hard-to-reach roof spans.
- Certified Strength: Rated for high structural loads, fully UKCA Certified, and backed by an industry-leading 20-Year Warranty.
Critical Specifications:
| Internal Size | 1500 x 2500 mm (Structural Opening) |
| Glass Build | Reinforced Dual 8mm Toughened (Triple Glazed) |
| Performance | 0.9 U-Value | 39dB Sound Insulation |
| Unit Weight | Approx. 223kg |
| Installation | Min. 8°–10° Pitch Recommended for Run-off |
— Delivery & Pitch Note:
Due to the 2.5m span, a minimum pitch of 8°–10° is required to ensure efficient water run-off. Delivery is Kerbside Only (223kg); appropriate manpower or lifting equipment must be available on-site for offloading.
The ultimate wide-format daylight solution for modern homes. Designed to exceed British Building Regulations for safety, strength, and energy efficiency.
15 in stock (can be backordered)
10 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
KingsView™ 1500 x 2500 mm Extra Large Architectural Rooflight
The KingsView™ 1.5m x 2.5m is our premier grand-format skylight, specifically engineered for full-width rear extensions, luxury kitchen diners, and creative studio spaces. At this scale, maintaining a flat glass profile is critical. While standard oversized units may bow, our series utilizes Reinforced Dual 8mm Toughened Glass to provide a perfectly flat, “infinity” aesthetic with zero compromise on structural integrity.
High-Strength Triple Glazing Profile:
Our Grand-Format skylights utilize three distinct glass panes, reinforced to prevent deflection over large spans:
- Top Pane: 8 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: 8 mm Planibel Clearlite / Thermally toughened glass BS EN 12150
Why Choose Our 1.5m x 2.5m Frameless Windows
- Superior Energy Efficiency: Achieve an outstanding 0.9 W/m²K U-value. Our triple-glazed units with warm-edge spacer technology and 90% Argon-filled cavities keep your space comfortable year-round while significantly reducing energy bills.
- Unobstructed Panoramic Views: The frameless “infinity” design maximizes natural light penetration, offering stunning views without bulky internal frames.
- Self-Cleaning Convenience: Standard sunlight-activated self-cleaning feature—vital for extra-large rooflights where manual cleaning is difficult.
- Acoustic & UV Protection: Provides a 39dB sound reduction for a quieter home and blocks harmful UV rays to protect your interior furnishings.
- Regulation Compliant: Fully meets British Standards & Building Regulations and carries the UKCA/CE safety marking.
Essential Grand-Format Accessories
Everything you need for an effortless skylights flat roof installation:
Custom-fit blinds for light control and privacy in your large-format window.
A comprehensive kit ensuring secure and hassle-free installation for grand spans.
Recommended Professional Accessories:
- Foam Rope (9mm Thick): Structural glazing tape for superior sealing and crucial structural support.
- DOWSIL™ 791 Weatherproofing: The industry-standard sealant for a permanent watertight finish.
- Self-Cleaning Smart Glass Replenisher: Specialized 15ml solution to maintain your self-cleaning properties.
Full Product Specification
| Internal Size (Opening) | 1500 x 2500 mm |
| External Glass Size | 1700 x 2700 mm |
| Glass Construction | Triple Glazed (Reinforced Dual 8mm) |
| Net Weight | Approx. 223.00 kg |
| U-Value | 0.9 W/m²K |
| Recommended Pitch | 8° – 10° (Optimal for Grand-Format Spans) |
🗺️ Where to Buy 1500 x 2500 mm Roof Lights Near Me
Looking for a 1500 x 2500 mm (1.5 x 2.5 m) roof light near you? This format is ideal for rear extensions and creative spaces. We manufacture frameless rooflights direct from our UK factory, trusted by over 1,200 UK homeowners and builders.
✅ UKCA Certified | ✅ 20-Year Warranty | ✅ Custom Roof Windows Available
Delivery Note: Due to the 223kg weight, delivery is kerbside only; appropriate manpower or mechanical lifting equipment must be available on-site.
Download our full product catalogue or Contact us today to discuss your project requirements!
| Weight | 108 kg |
|---|---|
| Dimensions | 205 × 10 × 145 cm |
| Brand |
KingsView |
| Internal Size |
1500 x 2500 mm |
| External Size |
1700 x 2700 mm |
| Glazing Type | |
| Glass Tint | |
| Self-Cleaning: |
Yes |
| Roof Type |
Flat Roof ,Pitched Roof |
| Skylight Type |
Frameless |
| Top Glass Pane: |
8 mm Planibel Clearlite / Thermally toughened glass EN 12150 |
| Air Gap |
16 mm Argon 90% |
| Middle Glass Pane: |
6 mm iplus 1.1 pos.5 Thermally toughened glass with Low-E coating EN 12150 |
| Air Gap |
16 mm Argon 90% |
| Bottom Glass Pane: |
8 mm Planibel Clearlite / Thermally toughened glass EN 12150 |
| 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 |
9 reviews for 1500x2500mm Extra Large Rooflight — Reinforced Triple Glazed Skylight — No Water Pooling — 0.9 U-Value
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
1500x2500mm Extra Large Rooflight — Reinforced Triple Glazed Skylight — No Water Pooling — 0.9 U-Value
KingsView™ 1500x2500mm (Internal Size) Extra Large Architectural Rooflight
Transform your home with our flagship 1.5m x 2.5m frameless skylight. Engineered specifically for luxury kitchen extensions and grand open-plan living, this architectural unit fits a 1500x2500mm internal structural opening, providing a massive "infinity glass" view with maximum structural safety.Why the KingsView™ Grand-Format Series Excels:
- Anti-Sag Engineering: Large 2.5m spans require superior rigidity. We use Reinforced Dual 8mm Toughened Safety Glass (Top & Bottom) to prevent "glass bowing." This ensures a perfectly flat profile and Zero Water Pooling for total peace of mind.
- Superior Thermal Shield: Achieve an incredible 0.9 W/m²K U-Value. This triple-glazed unit is fully Building Regulations compliant (Part L), keeping your home warm in winter and cool in summer.
- Acoustic & Smart Glass: Blocks up to 39dB of external noise and features Sunlight-Activated Self-Cleaning technology—essential for maintaining large, hard-to-reach roof spans.
- Certified Strength: Rated for high structural loads, fully UKCA Certified, and backed by an industry-leading 20-Year Warranty.
Critical Specifications:
| Internal Size | 1500 x 2500 mm (Structural Opening) |
| Glass Build | Reinforced Dual 8mm Toughened (Triple Glazed) |
| Performance | 0.9 U-Value | 39dB Sound Insulation |
| Unit Weight | Approx. 223kg |
| Installation | Min. 8°–10° Pitch Recommended for Run-off |
— Delivery & Pitch Note:
Due to the 2.5m span, a minimum pitch of 8°–10° is required to ensure efficient water run-off. Delivery is Kerbside Only (223kg); appropriate manpower or lifting equipment must be available on-site for offloading.
The ultimate wide-format daylight solution for modern homes. Designed to exceed British Building Regulations for safety, strength, and energy efficiency.
Inclined Insulated Upstand for Flat Roof Skylight 1500 x 2500 mm
Installation kit for 1 x Flat Roof Skylight 1500x2500mm
- Weatherproofing Sealant (Silicon) – DOWSIL™ 791, 310ml - 5pcs
- Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls) - 2pcs
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
9 reviews for 1500x2500mm Extra Large Rooflight — Reinforced Triple Glazed Skylight — No Water Pooling — 0.9 U-Value
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It really adds a luxurious feel to our home.
-
The flat roof skylight has completely changed our living space. The natural light makes a huge difference!
-
In Cardiff, we added a flat roof skylight to our home, and the difference is night and day. The light it brings in is simply fantastic.
-
The flat roof window is stylish and well-insulated. Our room feels bigger and brighter!
-
Bright, sleek, and energy-efficient. Love it!
-
Delivery was fast, and the rooflight is top quality. Would definitely recommend!
-
This flat rooflight exceeded our expectations! The frameless design is so elegant and modern.
-
Best decision ever! The rooflight is stunning.
-
Easy to install, well-made, and looks fantastic in our extension. So happy with our purchase!
William Davids –
It really adds a luxurious feel to our home.
Archie Lockwood –
The flat roof skylight has completely changed our living space. The natural light makes a huge difference!
Declan McAleer –
In Cardiff, we added a flat roof skylight to our home, and the difference is night and day. The light it brings in is simply fantastic.
Oliver Beckett –
The flat roof window is stylish and well-insulated. Our room feels bigger and brighter!
Jordan Koen –
Bright, sleek, and energy-efficient. Love it!
Charlotte Pennington –
Delivery was fast, and the rooflight is top quality. Would definitely recommend!
Daniel Atwood –
This flat rooflight exceeded our expectations! The frameless design is so elegant and modern.
Isabelle Ainsley –
Best decision ever! The rooflight is stunning.
Emily Kensington –
Easy to install, well-made, and looks fantastic in our extension. So happy with our purchase!