Lantern Roof Conservatories

Cornwall’s local home improvement specialists

for over 25 years

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Lantern Roof Conservatories

  • Lantern roof conservatories are a great way to transform any space, making a lighter and brighter addition to any room. This statement conservatory adds elegance and a modern twist on a regular conservatory. We want to help you create a stunning, practical living space. 

    A lantern conservatory is characterised by two tiers of conservatory roof, constructed on different levels. This is called the ‘wedding cake’ effect and gives a very distinctive look. The two constructed levels are divided by a row of windows, letting in light and adapting to any property style. 

    These roof conservatories will fill your room with light. Even on dark winter days the difference is incredible, making any room much more pleasant to be in. 

    Lantern roofs can be added to an already existing conservatory or onto a new extension. Our lantern roofs are made to the highest standard so you can be safe in the knowledge that your lantern roof addition is entirely weather resistant.

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    Lifetime Guarantee
    10-year manufacturer’s guarantee.

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    Tailor Made
    Classic windows tailor made to your exact specifications.

  • A Lantern Roof conservatory uses fewer bars to let in even more light. With an extended eaves beam, rather than a flat roof, the internal pelmet and external cornice create a stunning orangery roof style.

    A decorative cornice is used outside to hide the guttering and create beautiful sight lines.
    The internal insulated pelmet will enable you to enjoy better lighting and thermal performance. You can even opt for integrated spotlights and speakers to enhance your experience.

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    Flexible monthly payments

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    Interest free credit

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    Buy now / pay later

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    No finance required

If you’d like to find out more about installing a lantern roof conservatory, pop into your local showroom for a no pressure stroll around our displays. Or contact us today to get a free no obligation quote

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What is a lantern conservatory?

Lantern roof conservatories are a great option if you are looking to add more natural light into your home, without building a whole new conservatory. A lantern roof means that there is no commitment to get a new conservatory or large construction. A lantern roof is built into a rectangular space in your ceiling, glass panes are inserted and pitched so that they look like a smaller roof. These can be added to an existing room (if you have a flat roof) or you can add one when you upgrade your conservatory, as long as there is a solid roof to construct it on. Decorative cornicing can be used to hide the guttering and fit your personal style.

Do roof lanterns lose heat?

Although a roof lantern may lose slightly more heat than a tiled or insulated roof, at CTG we ensure that the highest quality double glazing is used to insulate your home as best as possible. However, if you want to reduce your heat loss further we can install triple glazing in your roof lantern, the perfect solution for cold climates. We guarantee that all our roof lanterns have internal insulated pelmets installed, ensuring that loss of heat is kept to a minimum. Installing roof lanterns is actually one of the most energy-efficient ways to brighten up your home.

Do roof lanterns let in more light?

A roof lantern is a great way to dramatically increase the amount of light that you are getting in your home. Even on a rainy day, a roof lantern will let much more light into your home, meaning you will not need to spend as much on your electricity bill! A roof lantern will let around three times more natural light into a room than a conventional window, depending on how large your roof lantern is. We also offer a range of glass options such as UV filters to protect you in summer or tinted glass to reduce glare.

How do you clean a roof lantern?

Although roof lanterns may look difficult to clean, there are some simple tips and tricks which make cleaning them a lot easier. The easiest way to clean a roof lantern is to use a long handle and attach a sponge to the end. This way you can use soapy water on the sponge to clear dirt or debris that has collected on the glass. Often the best time to clean roof lanterns is when the sun is shining as this helps the glass dry quickly without streaks, giving you a clear view of the sky.

Here at CTG we also offer self-cleaning glass, which could save you a lot of time and energy. If you want to find out more contact our experts to find out whether a roof lantern could be right for you.

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We have various low cost finance options available. Get a quick quote and apply for finance at the same time.

Features and benefits

Guarantees you can depend on.

We have built up a great reputation over years of delivering a first class service and excellent products, all from our local, no nonsense all-about-you company.

From characteristic country cottages to contemporary town houses, we’re confident that our products will offer a style and finish to truly transform your home. Through constant innovation the quality, durability and security of our products is genuinely second to none. As a local company we are proud to offer British Standards BS7412/PAS24 for enhanced security.

We refuse to compromise on quality

Our windows are made from British Made, high quality MarinespecTM components, with up to 25 years anti corrosion. They are built specifically for the more exposed areas of corrosion, such as coastal environments to give you worry free performance beyond your guarantee.  We believe spending more on components is worth every penny, and sets us apart from our competitors.

State of the art fabrication for best quality

We have invested millions of pounds into one of the most state of the art manufacturing facilities in the UK.  This enables us to provide you with consistently high quality products at exceptionally good prices. Our loyal factory workers are well trained and take pride in their work, they really care about quality.  Our machines are maintained according to a rigorous servicing regime to keep them in top condition.

Superior energy efficiency

Our ‘A’ rated energy efficient and triple glazed windows are tested by the BFRC, which will save you money on your heating bills. By law your windows and doors have to meet strict thermal performance regulations but you can be rest assured that our products exceed current requirements.

Energy saving is incredibly important and so is keeping your fuel bills down. We are continuously looking for ways to make our homes energy efficient and one way is to choose new PVCu windows and doors. Not only will they help to keep your home warmer, they will reduce your energy loss.

Don’t just take our word for it!

Our suppliers conform to strictly controlled and independently monitored Quality Management Systems such as ISO 9001, to ensure that everything is done correctly and according to best practise.

Our windows are tested independently by British Standards for security, weather tightness and strength performance. This means that periodically, we have to send them to independent test houses, in order to be tested to destruction.

These are just some of the many standards the products in our vast range conform to. Needless to say we take the quality of our products very seriously indeed.


Made to measure

The styles available are endless and the choices to suit your home are bigger than ever before. Traditional, contemporary or modern; our versatile window and door designs will create the look you want to complement and enhance your home. If you want windows that are as individual as you, our range of coloured and woodgrain windows offer you fifteen different colours and finishes.

A local business that really cares about its customers

Our sales consultants, surveyors, admin team and installers really care about you and your home. They are highly trained, motivated and want to go the extra mile to do the best possible job. Our fitters will treat your home with care and respect and will take time to ensure that you are delighted with the end result.

With a local showroom including an extensive display and experts on hand you can see before you buy and meet the team!

An effortless purchase process

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