Lantern Roof Conservatories

Manufactured in our Bristol & South West family-owned factory

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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!

What is a lantern conservatory?

A lantern roof conservatory is a great way to add natural light to your home without having to commit to full glass. A lantern roof is a rectangular space in your ceiling that has glass panes in the middle that are pitched to emulate a roof shape. They can be used in an already-existing room in your house (as long as it has a flat roof), or you can use them as part of a sturdier conservatory extension which has a solid roof. A decorative cornice is used outside that hides the guttering and gives you a beautiful view of the sky, as well as filling your room with natural light – even on grey days!

Do roof lanterns lose heat?

A roof lantern may lose a little more heat than an insulated and tiled roof, but at Britannia we always make sure the double-glazed glass we use is as thermally efficient as possible. If you are looking to reduce your heat loss even further, you can opt for triple-glazing in your roof lantern, which is ideal for cold climates. All our roof lanterns have internal insulated pelmets which will ensure that heat loss is kept to a minimum. A roof lantern is one of the most energy efficient ways to let natural light into your house.

Do roof lanterns let in more light?

Roof lanterns are an incredible way to increase the amount of natural light in a room. Even on grey days, you’ll find that you won’t need to turn on your lights or lamps until the sun goes down. In fact, a roof lantern lets in around three times more light than a conventional window, depending on the size you choose. You may be worried that the roof lantern might let in too much heat during the summer, but we offer different glass options that filter out UV to protect your furnishings, or slightly tinted glass to reduce glare.

How do you clean a roof lantern?

Because of the location of the lantern it is best to use a long handled window cleaning product, all you need to do is apply warm soapy water that should get rid of any debris or dirt stuck to the glass. It’s actually a good idea to clean your windows when it isn’t sunny outside, as this could cause the glass to dry quickly and form streaks.

If you don’t like the idea of manually cleaning your roof lantern, we offer self-cleaning class, which saves you time and energy. Why not contact us and see whether a roof lantern with self-cleaning glass would work in your home?

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