Roof lanterns are a modern solution for bringing natural light into flat roof extensions. This blog explores their design, benefits, types, and installation. It compares skylights and lanterns, explains sizing, and breaks down UK prices for uPVC, aluminium, and timber frames. You’ll learn how glazing options, frame material, and location affect cost and performance. From Korniche and Skypod models to frameless and opening styles, the guide covers everything you need to make an informed purchase. With expert tips on placement, lighting, and value, this guide helps you choose the best roof lantern for your home.
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UK’s Top Suppliers of Roof Lanterns for Flat Roofs in 2025
Roof lanterns | Roof lantern installation | flat roof lanterns UK
What are Roof Lanterns?

Flat roof extensions are popular in the UK. But without enough natural light, they feel dull. Roof lanterns offer a smart, stylish solution. These raised glass structures allow light to flood in. They transform dark rooms into bright, modern spaces.
At Window Price Online, we supply the best roof lanterns for flat roofs. We offer trade-level pricing, fast delivery, and top-quality design. From frameless roof lanterns to Korniche lanterns, our range fits every style and budget.
In this guide, we cover everything from roof lantern sizes to installation tips. You’ll learn about flat roof lantern prices, glazing types, and design choices. Let’s explore why roof lanterns are one of the best upgrades for flat roof extensions.
Features of Roof Lantern

Roof lanterns add space, light, and elegance. They work well in kitchens, dining areas, and open-plan spaces. Some even include roof lantern blinds or opening roof lanterns for airflow.
They are built using aluminium, timber, or uPVC frames. Double or triple glazing improves thermal control. Glass can be clear, tinted, or self-cleaning.
Compared to traditional skylights, roof lanterns offer higher light output. Their raised design looks architectural and stylish. Many homeowners choose them to modernise older properties.
Benefits of Roof Lanterns for Flat Roofs
Flat roofs don’t naturally allow much overhead light. A roof lantern solves this problem. It adds brightness, height, and visual interest. Installing a roof lantern boosts room appeal. It creates a feature that draws the eye upward. It works especially well above a kitchen island or dining table.
Roof lanterns also improve energy use. High-quality glazing reduces the need for artificial lighting. Triple-glazed or argon-filled options increase insulation. Ventilation is another benefit. Some models come with manual or electric openings. These roof lanterns with opening windows let hot air escape.
They also boost property value. Buyers love rooms filled with natural light. A well-placed glass roof lantern makes any space feel high-end and inviting.
Types of Roof Lanterns

There are many types of roof lanterns available. Each suits different homes, budgets, and flat roof styles. The choice depends on design, glazing needs, and energy goals. Below are the most popular types found in UK homes.
Frameless Roof Lantern
Frameless lanterns offer a sleek, all-glass appearance. There are no visible beams from below. This creates a clean and uninterrupted view of the sky. Light enters from all angles with minimal shadows. They’re ideal for ultra-modern and minimalist homes.
Frameless options use structural glazing and strong internal joints. These lanterns are often custom-made to exact sizes. They require precise installation but deliver a luxury finish. You can pair them with LED lighting for extra effect. Frameless designs work well in kitchens, lounges, or dining areas.
Traditional Roof Lanterns
Traditional lanterns feature visible rafters and decorative trims. These suit period or heritage-style homes. The frames are usually timber or painted aluminium. They replicate the style of original Victorian or Georgian rooflights.
The visual detail enhances classic interiors. These lanterns are ideal for listed buildings or orangery-style extensions. They can be painted in heritage colours to match existing features. Some models come with detailed crestings and finials. While they need more upkeep, they offer timeless charm.
Korniche Roof Lantern
The Korniche roof lantern is a popular premium choice. It uses strong aluminium frames with ultra-slim sightlines. This design maximises glass area and allows more natural light. The clean, modern finish fits contemporary homes.
Korniche lanterns come in a wide range of sizes and colours. The system is thermally broken for energy efficiency. Installation is quick thanks to pre-assembled parts. Double or triple glazing options are available. It’s a trusted brand for both trade and homeowners.
Skypod Roof Lantern
Skypod roof lanterns are known for their affordability. They use durable uPVC frames and come in standard sizes. While colour choices are limited, white and grey options suit most builds. They are ideal for homeowners on a tight budget.
Despite being cost-effective, Skypod lanterns perform well. They offer good insulation and reduce heat loss. These lanterns are often used in garage conversions or small extensions. Some models come with fixed or vented options. Their simple design keeps maintenance low.
Opening Roof Lanterns
Opening roof lanterns feature manual or electric vents. These allow fresh air to circulate and hot air to escape. Ventilation is especially useful in kitchens or south-facing rooms. It helps regulate temperature throughout the day.
You can choose hinged, sliding, or top-opening panels. Electric vents can include rain sensors and remote controls. Some models link to home automation systems. These lanterns blend style with practicality. They are ideal for high-ceilinged rooms or warm climates.
Flat Roof Lanterns vs Skylights
Many confuse skylights with lanterns. But they differ in design and effect. Roof skylights sit flush with the roof. They provide a direct view of the sky. They’re good for small spaces or bathrooms.
Lantern roof lights, by contrast, are raised. They offer better light angles and a bigger visual impact. They add depth to flat ceilings. Lanterns also suit larger openings better than skylights. They allow for dramatic, feature-style lighting. You’ll often see them in kitchens and dining rooms.
Cost is also a factor. Skylights are cheaper, but lanterns provide better results. Both serve a purpose, but lanterns offer more architectural interest.
Where Can You Install Roof Lanterns?

Roof lanterns can be installed on most flat or low-pitch roofs. Common locations include:
- Kitchen extensions
- Dining areas
- Living room ceilings
- Hallways or landings
- Orangeries and garden rooms
The key is ensuring the roof is flat or has a low pitch. Your builder will create a structural opening. It must meet safety and insulation standards. You can choose centered or offset positions. Some people prefer multiple smaller lanterns instead of one large one. This can reduce costs and simplify installation.
Roof Lantern Sizes: What to Consider
Choosing the right size is important. Too small, and it won’t make an impact. Too large, and it may overpower the space.
Common roof lantern sizes include:
- 1000mm x 1500mm
- 1000mm x 2500mm
- 1200mm x 3000mm
- 1500mm x 3500mm
- Custom sizes also available
Measure your ceiling carefully. Think about furniture placement and natural light flow. Most suppliers offer size calculators or online design tools.
Bigger lanterns mean higher roof lantern cost. But they also give better light coverage. The right balance depends on your room’s layout.
Flat Roof Lantern Prices in the UK

Let’s break down flat roof lantern prices based on size and type:
| Size (mm) | uPVC Price | Aluminium Price | Triple Glazed Price |
| 1000 x 1500 | £400–£600 | £600–£800 | £700–£950 |
| 1000 x 2500 | £600–£800 | £900–£1100 | £1100–£1400 |
| 1500 x 3000 | £900–£1200 | £1300–£1600 | £1600–£2000 |
| 2000 x 4000 | £1500+ | £2000+ | £2500+ |
Prices vary by brand, glazing, and finish. Korniche roof lanterns are at the premium end. Cheap roof lanterns may lack quality or insulation features. Always compare specs, not just cost. A good lantern should meet thermal and security standards. Consider long-term energy savings when budgeting.
Materials: uPVC, Aluminium, or Timber?
uPVC Roof Lanterns
Affordable and low-maintenance.
Great for small budgets or rental properties.
Limited frame colour options.
Aluminium Roof Lanterns
Strong and lightweight.
Slim frames allow more glass.
Ideal for large, modern designs.
Timber Roof Lanterns
Classic look for period homes.
Can be painted or stained.
Needs more care over time.
Each material affects appearance, cost, and performance. Aluminium offers the best mix of durability and style. uPVC suits tighter budgets. Timber adds charm but needs upkeep.
Glazing Options

The glass is just as important as the frame. Double glazing is standard. Triple glazing offers better insulation.
You can also choose:
- Self-cleaning glass
- Tinted or solar-control glass
- Privacy or frosted glass
- Argon gas-filled units
Triple glazed roof lanterns reduce heat loss and noise. For kitchens, solar glass helps control temperature. Always check U-values before buying.
Roof Lantern Installation Guide
Installation must follow building regulations. You’ll need a builder to prepare the opening. The roof must support the weight of the lantern.
The lantern is then fixed to a kerb or upstand. Seals prevent water ingress. Interior finishing follows once the frame is secured.
Professional roof lantern installation ensures safety and performance. DIY is possible for experienced builders. Always use safety glass and certified products.
Installation time depends on size and roof type. Most units can be installed in a day. Some suppliers offer installation as an add-on service.
Do Roof Lanterns Add Value?
Yes, roof lanterns boost home value. They improve lighting, ventilation, and aesthetics. Homes with natural light sell faster and for more money. Buyers notice features like lantern roof kitchen designs. These create open, modern, and usable spaces. A well-installed lantern adds to the home’s appeal.
Energy-efficient glazing helps reduce utility bills. This adds value over time. Modern roof lanterns also improve a property’s energy rating.
Lantern Roof Lighting Ideas
Roof lanterns enhance natural light, but you can add extras. LED strip lighting around the perimeter looks modern. Spotlights in the ceiling tray can highlight the frame. Some homeowners add pendant lights below the lantern. This works well above dining tables. Choose warm lighting to complement the natural glow.
Lantern roof lighting combines practicality with design. It also allows mood changes from day to night. You can even automate lights to adjust throughout the day.
Why Choose Window Price Online?
At Window Price Online, we offer the UK’s best value on roof lanterns for flat roofs. Our products meet strict energy and quality standards. We supply to trade and homeowners, with no hidden fees.
From Korniche roof lanterns to frameless styles, we stock a wide range. You can customise size, glazing, frame colour, and more. We ship fast across the UK, and every lantern is made to order. Use our online tool to design, shop with us, and order in minutes.
Conclusion: Light Up Your Flat Roof
Roof lanterns are a smart choice for any flat roof extension. They add value, improve lighting, and upgrade design. With so many options available, finding the right one takes planning. Choose the right size, glazing, and material. Set a budget that balances cost with performance. Consider energy savings, airflow, and visual impact.
At Window Price Online, we make it easy. Get the best flat roof lanterns UK offers, priced clearly, delivered quickly. Whether you need skylights or roof lanterns online, we’ve got you covered.
Ready to brighten your home? Start designing your roof lantern today. Contact us!
Frequently Asked Questions
What is the difference between a skylight and a roof lantern?
A skylight sits flat within the roof, while a roof lantern is raised and multi-angled. Lanterns allow more light and add visual impact to flat roof spaces. They create a central feature and increase ceiling height. Roof lanterns are better for large, open areas.
Are roof lanterns suitable for all flat roofs?
Yes, most flat or low-pitch roofs can support a roof lantern with proper structural support. Always consult your builder before installation. You may need a kerb or upstand for correct fitting. Check building regulations for structural safety.
How much do flat roof lanterns cost in the UK?
Prices range from £400 to £2500+, depending on size, material, and glazing. uPVC options are the most affordable; aluminum and triple glazing cost more. Installation, frame color, and glass type also affect the final price. Always request a full quote to avoid hidden charges.
Do roof lanterns help with insulation?
Yes, modern roof lanterns use thermal breaks and double or triple glazing. They reduce heat loss in winter and block excess heat in summer. Energy-efficient designs help lower heating bills. Look for units with low U-values for best performance.
Can I get a roof lantern with ventilation?
Yes, many models come with manual or electric opening vents. These help improve airflow and reduce condensation, especially in kitchens and bathrooms. Electric vents can include rain sensors and remote control. Ventilation adds comfort during warmer months.



