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A Lantern Roof Extension in Bromley and Dartford, to Maidstone and Sevenoaks

A lantern roof can be installed as part of a new flat roof extension, orangery or a new build conservatory roof. They are durable, weather-proof, and thermally efficient, and even boast self-cleaning glass to eliminate any maintenance needs. The large areas of glass create a light and airy feel while the vaulted ceiling provides the feeling of extra space, and makes the room feel like a luxurious extension from your home. Take a read to get modern conservatory ideas to inspire you here!

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    Compare Roof Options

    Tiled Conservatory Roof

    Tiled Conservatory Roof

    • Attractive lightweight composite tiles
    • Blend with your home and maintain privacy
    • U-values as low as 0.15 W/(m²K)
    Glass Conservatory Roof

    Glass Conservatory Roof

    • High-performance, self-cleaning glass
    • Maximise natural light into your conservatory
    • U-values as low as 1.0 W/(m²K)
    Solid Roof Conservatory

    Solid Roof Conservatory

    • Composite panels combined with glazing
    • Maximise light and retain privacy
    • U-values as low as 0.15 W/(m²K)
    Conservatory Roof Replacement

    Conservatory Roof Replacement

    • Tiled roofs to help maintain privacy
    • Glass roofs to maximise natural light
    • Solid roofs combining tiles and glazing

    Learn more with our innovative interactive roof designer

    What is a lantern roof extension?

    A lantern roof is a roofing system formed of glazed panels that are fitted at an angle, where a flat roof would normally lie. Pieced together with sleek aluminium or uPVC panels, it acts as a stunning centrepiece for any home extension. They’re popular with homeowners looking to retain their privacy, yet let the natural light brighten the room. Our roof lanterns are made to measure, so you can incorporate as many opening windows as you require to maximise ventilation capacity.

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    Black lantern roof interior view
    Extension with dual white roof lanterns

    Add a unique luxury aesthetic to your glass extension in Kent

    Lantern roofs are ideal for both modern and traditional properties thanks to their versatile designs. Our lantern roofs can be designed in a variety of styles including octagonal, square, pyramidal, and double hipped. Your bespoke lantern roof can be installed directly onto the extension or on a raised frame to increase ceiling height. We can advise on what best fits your home to maximise light yet retain privacy. Choose from a number of attractive colours, including white, grey and black, to achieve a contemporary yet elegant appearance.

    We offer multi-chambered uPVC and thermally broken aluminium roof lanterns. Each has its own benefits, but they both provide superior energy efficiency, luxury style and strength thanks to their advanced specifications. The frames are strong enough to support large sections of premium glazing while their slim sightlines and raised roofs enable natural light intake to be optimised.

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    Lantern roof extensions can withstand even the harshest weathers

    Both modern uPVC and aluminium offer incredible levels of durability, giving you peace of mind that your new lantern roof will offer incredible sturdiness. They’ve been rigorously tested to meet strict industry standards, ensuring they won’t smash or weaken over time.

    The innovative structure features fewer bars so they can hold extra glass, heightening its structural integrity whilst increasing light intake. We also incorporate a triple layer storm shield protection, so it can withstand tough winds of up to 130mph and heavy rains. This pioneering design also eliminates any sounds of rain, providing a relaxed atmosphere inside.

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    A White roof lantern interior view.
    Orangery rooflight

    Enhance your conservatory interior décor with insulated pelmets

    Internal pelmets can border the perimeter of the room to give the illusion of a flat ceiling which borders the roof lantern. Not only will this direct all attention towards the raised glass roof, it also improves its thermal performance. This is because it’s fitted with mineral wool insulation.

    The size of the internal pelmets can range from 300mm to 1200mm, depending on your ideal indoor aesthetics. They can be plastered and painted in an array of colours to complement your home’s current interior design.

    Another great benefit of including contemporary pelmets is we can add spotlights and downlights inside the room to provide a glowing ambience that allures a luxury flair. We can even install speakers for a surround sound system that will provide the perfect space to entertain friends and family.

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    Keeping energy bills low across Tonbridge, Rochester and Canterbury

    The glazing panels are highly energy efficient and can reach U-values of 1.1. During the summer, they actively eliminate the sun rays from entering and causing your extension to overheat. This intelligent design ensures your glass extension will keep at an optimal temperature all year round. Our modern design also includes insulated under cladding and eaves rails, keeping the cold elements out.

    Our lantern roofs can be fitted with solar control and roof vents, helping you to regulate the internal temperature all year round. Our advanced glazing also boasts self-cleaning abilities, so you won’t need to worry about continual upkeep to ensure they look and perform as good as new. With less frame and more sky, you’ll be able to enjoy your extended living area all year round.

    A White roof lantern interior view.

    Your Conservatory Journey with FineLine

    Getting a new conservatory installed is a big decision. That’s why we make the process as straight forward as possible for you.


    Choose the right conservatory

    Fill out a form online or visit one of our 11 showrooms where one of our team of experts are on hand to help you design your dream conservatory and offer any advice. After we create your design we will visit your property to measure up and provide you with a free no-obligation quote.


    Place your order with us

    Once we’ve confirmed the final conservatory design, including decorative features, paired windows and doors, and roofing options, we’ll confirm and approve your order. Once we have received your order deposit, our administration team will provide your contract to a surveyor.


    Your surveyor assessment

    Our surveyor will contact you to arrange a convenient date to come to your home and review the project and take accurate measurements before we confirm the assessment. If a trial dig is required to determine the footings of your conservatory, we will arrange to carry this out.


    Pre-site check and confirm an installation date

    Our technical department will advise on whether planning permission is required and, if it is, our team will take care of this. Your designated project manager will contact you to arrange a pre-site check to finalise all of the specifics required before agreeing the dates for your installation.


    You're ready for your installation

    Our conservatory installers will arrive at the arranged time to begin work and will ensure as minimal disruption as possible. They’ll advise on maintenance tips for your new conservatory, and the functionality of the integrated windows and doors. Once your installation is complete, we will contact you to confirm that the project is finished.

    Begin Your Project

    Get your free quote – with no-obligation to buy. Simply fill in the form below to get started:

      By submitting your details you confirm that you agree to the storing and processing of your personal data by FineLine as described in the privacy statement.


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      Installer awards 2022
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      Conservatory and orangery awards winner 2019
      NHIC 2018 Consumer confidence award
      G17 Installer of the year
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