Name: Cambridge HorizonLite Fixed Frameless Roof Window 400x400mm
Brand: Cambridge Skylights
SKU: 5065009232338
Price: 170.0 GBP
Availability: InStock

Introducing the Cambridge HorizonLite Fixed Frameless Roof Window - Your Gateway to Boundless Sky Views and Unbeatable Functionality!

Ready to enrich your home with natural light and a sense of openness? The Cambridge HorizonLite Fixed Roof Window can transform your space. With its innovative frameless design, this non-opening skylight brings a modern aesthetic that beautifully complements your home's interior and exterior. Its construction from high-quality, durable materials guarantees outstanding performance and longevity.

Explore the benefits of the Cambridge HorizonLite Fixed Frameless Roof Window.

✔ Uninterrupted Panoramic Views: Experience clear, uninterrupted views of the great outdoors with our frameless design, whether it be the sky, passing clouds, or surrounding greenery.

✔ Leak-Proof Design: Engineered with precision, the frameless HorizonLite ensures a leak-proof design, providing peace of mind while flooding your home with natural light.

✔ Exceptional Energy Efficiency: The HorizonLite excels in thermal insulation, reducing heat loss and lowering energy bills, making it an eco-friendly addition to your home.

✔ Robust and Low Maintenance: With its ability to resist harsh weather conditions and its minimal maintenance requirements, the HorizonLite is a durable solution for your home.

✔ Superior German Engineering: Incorporated in our Cambridge Skylights, the Thermix® TX Pro® Warm Edge spacer boosts energy efficiency, reduces condensation, and achieves a notable U-Value of 0.8 W/m2K, setting new standards for fixed skylight performance.

Choose the Cambridge HorizonLite Fixed Roof Window to boost your home's ambiance and energy efficiency. Its blend of style and functionality offers panoramic views and floods of natural light, transforming your living space. Experience an upgrade in home value and enjoy lower energy bills within a sustainable lifestyle. Elevate your living experience today with the Cambridge HorizonLite!

Glazing Specs

Glazing type: Triple glazed
Glass brand: Saint-Gobain
Top glass pane: 6mm BS EN 12150 thermally toughened glass
Spacer type: 16mm Thermix® TX Pro®
Middle glass pane: 4mm BS EN 12150 thermally toughened glass
Spacer type: 16mm Thermix® TX Pro®
Air gap: 90% argon filled
Bottom glass pane: 44.2 low-e BS EN 14449 laminate glass
UV protected: Yes
G-value (%): 54
U-value (Ug) (W/m²K): 0.8
Acoustics reduction (dB): -42

Size & Weight

Quoted Internal Size (mm)	External Size (mm)	Weight (kg)
300x300	500x500	8
400x400	600x600	12
500x500	700x700	14
600x600	800x800	28
600x900	800x1100	32
600x1200	800x1400	49
600x1500	800x1700	50
600x1800	800x2000	58
600x2000	800x2200	65
600x2500	800x2700	92
800x800	1000x1000	42
800x1000	1000x1200	46
800x1200	1000x1400	59
800x1500	1000x1700	72
800x1800	1000x2000	85
800x2000	1000x2200	91
800x2500	1000x2700	106
1000x1000	1200x1200	61
1000x1200	1200x1400	71
1000x1500	1200x1700	85
1000x2000	1200x2200	99
1000x2500	1200x2700	111
1000x3000	1200x3200	133
1200x1200	1400x1400	89
1200x1800	1400x2000	92
1200x2000	1400x2200	118
1200x2500	1400x2700	131
1500x1500	1700x1700	137
1500x2000	1700x2200	152
1500x2500	1700x2700	189
1500x3000	1700x3200	223

Installation Guide

Upgrade your space with ease using our Cambridge HorizonLite skylights, designed for quick installation in six easy steps — no drilling or loose parts required. Enhance your purchase with an optional fitting kit, packed with all the sealants and tape you'll need.

Check out our installation guide for tips, or get in touch for expert advice.

📄 Download PDF Guide

🎬 Watch Video - Flat Roofs

🎬 Watch Video - Pitched Roofs

Measuring Tip

At Cambridge Skylights, we quote our skylights based on their internal sizes - which should match the roof opening size. However, please note that our skylights have a total width and length of 200mm wider than the internal size, with an extra 100mm on each side; this dimension is the external measurement of the skylight. Ensure that the external size of our skylights is wider than your roof opening to guarantee a proper fit.
The frameless design of our skylights allows them to be installed in either portrait or landscape orientation, giving you more flexibility in your installation options.
Product FAQs

Q: What makes the Cambridge HorizonLite different from other skylights?
A: The Cambridge HorizonLite Fixed Roof Window offers a frameless design that provides uninterrupted panoramic views and a modern aesthetic. Its superior German engineering, including the Thermix® TX Pro® Warm Edge spacer, achieves excellent energy efficiency with a notable U-Value of 0.8 W/m2K.
Q: How does the frameless design of the HorizonLite enhance my home?
A: The innovative frameless design of the HorizonLite brings in natural light and offers expansive views of the sky, creating a sense of openness and connection to the outdoors without the interruption of visible frames.
Q: Is the HorizonLite designed to be leak-proof?
A: Yes, the HorizonLite is engineered with precision for a leak-proof design, providing both durability and peace of mind.
Q: What are the maintenance requirements for the HorizonLite?
A: The HorizonLite is constructed to withstand harsh weather conditions and is designed to be low maintenance, saving time and effort in its upkeep.
Q: Can the HorizonLite help me save on energy bills?
A: Absolutely. The HorizonLite excels in thermal insulation, reducing heat loss significantly. This not only helps in lowering energy bills but also makes it an eco-friendly addition to any home.
Q: Is there a warranty for the HorizonLite Fixed Roof Window?
A: Yes, we provide a 25-year unit seal warranty for the HorizonLite. Please contact us directly for the specific details and duration of the warranty coverage.

Shipping FAQs

Q: How much does shipping cost?
A: Shipping costs to England, Wales, and Scotland vary and will be displayed at checkout based on your postcode.
Q: Is there an express shipping option?
A: Yes, express services are available on certain products and details will be provided at checkout.
Q: Is there free delivery available?
A: Free standard delivery is offered for orders exceeding £2000, applicable only to mainland England.
Q: What if my postcode isn't displayed at checkout?
A: If your postcode isn't displayed, you can contact us for a custom shipping quote.
Q: Can I collect my order in person?
A: Collections are welcome but need to be pre-scheduled by calling us beforehand.

Returns & Exchanges FAQs

Q: What is the return policy?
A: We offer a 14-day return policy from the day you receive your item. Products must be unused, unopened, and in the original packaging, with proof of purchase included.
Q: Can I cancel my order?
A: You can cancel your order within 14 days of placement, provided it has not been dispatched, for a full refund.
Q: Are there any fees for returns?
A: Delivery fees are non-refundable, and a handling fee of 10% is applied to each return.
Q: What if my item arrives damaged?
A: If an item arrives damaged, contact us with your order number and photographic evidence within 30 days of delivery to initiate a warranty claim.
Trustpilot

Product Description

Introducing the Cambridge HorizonLite Fixed Frameless Roof Window - Your Gateway to Boundless Sky Views and Unbeatable Functionality!

Ready to enrich your home with natural light and a sense of openness? The Cambridge HorizonLite Fixed Roof Window can transform your space. With its innovative frameless design, this non-opening skylight brings a modern aesthetic that beautifully complements your home's interior and exterior. Its construction from high-quality, durable materials guarantees outstanding performance and longevity.

Explore the benefits of the Cambridge HorizonLite Fixed Frameless Roof Window.

✔ Uninterrupted Panoramic Views: Experience clear, uninterrupted views of the great outdoors with our frameless design, whether it be the sky, passing clouds, or surrounding greenery.
✔ Leak-Proof Design: Engineered with precision, the frameless HorizonLite ensures a leak-proof design, providing peace of mind while flooding your home with natural light.
✔ Exceptional Energy Efficiency: The HorizonLite excels in thermal insulation, reducing heat loss and lowering energy bills, making it an eco-friendly addition to your home.
✔ Robust and Low Maintenance: With its ability to resist harsh weather conditions and its minimal maintenance requirements, the HorizonLite is a durable solution for your home.
✔ Superior German Engineering: Incorporated in our Cambridge Skylights, the Thermix® TX Pro® Warm Edge spacer boosts energy efficiency, reduces condensation, and achieves a notable U-Value of 0.8 W/m2K, setting new standards for fixed skylight performance.

Choose the Cambridge HorizonLite Fixed Roof Window to boost your home's ambiance and energy efficiency. Its blend of style and functionality offers panoramic views and floods of natural light, transforming your living space. Experience an upgrade in home value and enjoy lower energy bills within a sustainable lifestyle. Elevate your living experience today with the Cambridge HorizonLite!

Technical Specs

Glazing Specs

Glazing type: Triple glazed
Glass brand: Saint-Gobain
Top glass pane: 6mm BS EN 12150 thermally toughened glass
Spacer type: 16mm Thermix® TX Pro®
Middle glass pane: 4mm BS EN 12150 thermally toughened glass
Spacer type: 16mm Thermix® TX Pro®
Air gap: 90% argon filled
Bottom glass pane: 44.2 low-e BS EN 14449 laminate glass
UV protected: Yes
G-value (%): 54
U-value (Ug) (W/m²K): 0.8
Acoustics reduction (dB): -42

Size & Weight

Quoted Internal Size (mm)	External Size (mm)	Weight (kg)
300x300	500x500	8
400x400	600x600	12
500x500	700x700	14
600x600	800x800	28
600x900	800x1100	32
600x1200	800x1400	49
600x1500	800x1700	50
600x1800	800x2000	58
600x2000	800x2200	65
600x2500	800x2700	92
800x800	1000x1000	42
800x1000	1000x1200	46
800x1200	1000x1400	59
800x1500	1000x1700	72
800x1800	1000x2000	85
800x2000	1000x2200	91
800x2500	1000x2700	106
1000x1000	1200x1200	61
1000x1200	1200x1400	71
1000x1500	1200x1700	85
1000x2000	1200x2200	99
1000x2500	1200x2700	111
1000x3000	1200x3200	133
1200x1200	1400x1400	89
1200x1800	1400x2000	92
1200x2000	1400x2200	118
1200x2500	1400x2700	131
1500x1500	1700x1700	137
1500x2000	1700x2200	152
1500x2500	1700x2700	189
1500x3000	1700x3200	223

Installation Guide

FAQs

Product FAQs

Q: What makes the Cambridge HorizonLite different from other skylights?
A: The Cambridge HorizonLite Fixed Roof Window offers a frameless design that provides uninterrupted panoramic views and a modern aesthetic. Its superior German engineering, including the Thermix® TX Pro® Warm Edge spacer, achieves excellent energy efficiency with a notable U-Value of 0.8 W/m2K.

Q: How does the frameless design of the HorizonLite enhance my home?
A: The innovative frameless design of the HorizonLite brings in natural light and offers expansive views of the sky, creating a sense of openness and connection to the outdoors without the interruption of visible frames.

Q: Is the HorizonLite designed to be leak-proof?
A: Yes, the HorizonLite is engineered with precision for a leak-proof design, providing both durability and peace of mind.

Q: What are the maintenance requirements for the HorizonLite?
A: The HorizonLite is constructed to withstand harsh weather conditions and is designed to be low maintenance, saving time and effort in its upkeep.

Q: Can the HorizonLite help me save on energy bills?
A: Absolutely. The HorizonLite excels in thermal insulation, reducing heat loss significantly. This not only helps in lowering energy bills but also makes it an eco-friendly addition to any home.

Q: Is there a warranty for the HorizonLite Fixed Roof Window?
A: Yes, we provide a 25-year unit seal warranty for the HorizonLite. Please contact us directly for the specific details and duration of the warranty coverage.

Shipping FAQs

Q: How much does shipping cost?
A: Shipping costs to England, Wales, and Scotland vary and will be displayed at checkout based on your postcode.

Q: Is there an express shipping option?
A: Yes, express services are available on certain products and details will be provided at checkout.

Q: Is there free delivery available?
A: Free standard delivery is offered for orders exceeding £2000, applicable only to mainland England.

Q: What if my postcode isn't displayed at checkout?
A: If your postcode isn't displayed, you can contact us for a custom shipping quote.

Q: Can I collect my order in person?
A: Collections are welcome but need to be pre-scheduled by calling us beforehand.

Returns & Exchanges FAQs

Q: What is the return policy?
A: We offer a 14-day return policy from the day you receive your item. Products must be unused, unopened, and in the original packaging, with proof of purchase included.

Q: Can I cancel my order?
A: You can cancel your order within 14 days of placement, provided it has not been dispatched, for a full refund.

Q: Are there any fees for returns?
A: Delivery fees are non-refundable, and a handling fee of 10% is applied to each return.

Q: What if my item arrives damaged?
A: If an item arrives damaged, contact us with your order number and photographic evidence within 30 days of delivery to initiate a warranty claim.

Reviews | ★★★★★

Clear sky views, no boundaries – a roof window that changes everything.

The Cambridge HorizonLite Fixed Frameless Roof Window is a sleek and modern skylight that brings more light and a great view of the sky into your home. Its design is simple and elegant, without any frames, making your rooms feel more open and connected to the outdoors. This skylight is perfect for making your home look and feel brighter and more spacious.

Beyond its stylish look, the HorizonLite is designed with practicality in mind. Its strong, watertight construction means you won't have to deal with leaks, keeping your home dry and comfortable. It's also energy-efficient, helping to keep your home warm and reducing your heating costs. This makes the HorizonLite not just a stylish addition to your home, but a smart, cost-effective choice as well.

View Gallery

Peak design, panoramic views – The HorizonLite signature

The HorizonLite skylight, with its triple-glazed glass from Saint-Gobain, offers top-notch insulation and durability. The layers include a 6mm toughened top pane, a 4mm toughened middle pane, and a 44.2 low-e laminate bottom pane, all separated by 16mm Thermix® TX Pro® spacers for superior thermal efficiency. This design achieves a remarkable U-value of 0.8 W/m²K, ensuring minimal heat loss, and is filled with 90% argon gas for added insulation. Additionally, it offers excellent UV protection and reduces noise by -42 dB, making your home quieter and more energy-efficient.

Exceptional thermal performance

No visible sightlines, glass only

Leak-proof design

Easy installation - no drilling required

modern frameless design

Key Features

✔ Panoramic Views: Seamless sky vistas.
✔ Leak-Proof: Keeps interiors dry and lit.
✔ German Design: Peak thermal efficiency.
✔ Energy-Efficient: Saves heat, lowers bills.
✔ Durable: Tough build, easy care.

Amazing Value

Offering trade prices on all our products

Free Shipping

When you spend £2000 or more

Store Pickup

Pick your order up yourself, for free

Rated Excellent

See why our customers love us

Quick links

Quick links

Promoted products

Cambridge Skylights

Cambridge HorizonLite Fixed Frameless Roof Window 600x900mm

VELUX

VELUX Manual Centre Pivot Roof Window 550x980mm

FAKRO

Centre Pivot Roof Window 660x1180mm

Best Sellers

Fixed & Frameless

Electric Opening

Choose Your Style

Style A

Style B

Best Sellers

FAKRO

Blackout Blinds

FAKRO

Roller Blinds

FAKRO

Venetian Blinds

Grab Deals

3% OFF

10% OFF

20% OFF

Pitched Roof Windows

Flat Roof Windows

Roof Lanterns

Loft Ladders

Your cart

Your cart is empty