Korniche Roof Lanterns

(14 customer reviews)

From £561.97

Usually Delivered Within 10-14 Working Days*

Price Match Promise We guarantee to better any written quote. Please get in touch.

Unsure which glass option to go for? Please refer to our glass guide here.


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Korniche Roof Lanterns
  • Quick & Easy To Install
  • Strong, Durable & Secure
  • Thermally Efficient With Choice Of Glass Types
  • Slim Sight-Lines Means More Glass Less Frame
  • Opening Vent option available
  • See large range of standard sizes above or for non-standard sizes Request a quote

IMPORTANT – ALL DIMENSIONS ABOVE ARE OVERALL EXTERNAL CURB. Before purchasing your lantern, please download and review the following important documents to make sure you get it right first time:

Please note, all Korniche Roof Lanterns are custom made to order and CANNOT BE CHANGED OR CANCELLED ONCE PURCHASED.

*Lead times are indicative only and not guaranteed. Please be aware that due to ongoing supply chain issues, lead times may vary.

*Free Economy Delivery to Mainland UK (Scotland and Postcodes CT, PL & TR + £96.00)

For Friendly, Professional Advice Call 0203 005 1587

  • 10 Year Guarantee
  • Prompt Nationwide Delivery
  • Excellent Service

Korniche Lanterns

The Korniche Roof Lantern is without doubt, the best value aluminium roof lantern on the market and provides looks and performance head & shoulders above any similar priced competitor.


Sizes are available upto 6000mm long x 4000mm wide with minimum number of glaziing bars. This provides a light & airy structure making the most of the glass area without interruption. However, if you prefer a more traditional appearance, please let us know and we will include for glazing bars typically spaced at 600 to 900mm centres suitable for heritage buildings and older properties.


Stay comfortable all year round – A range of glass choices is available including Neutral Solar Control Glass at no extra cost. This cuts down the sun’s heat by about 60%, but the slight neutral tint still lets in plenty of light resulting in a bright room without glare. A special low-emmissivity 1.2W/m2.K coating retains heat meaning you always stay cozy during the coldest winter months. Korniche Roof Lanterns are manufactured from thermally broken aluminium, foam filled gaskets and insulation to reduce the risk of condensation.


Each Roof Lantern kit comes with easy to follow instructions and is designed for quick assembly rarely taking more than half a day to install. Glass is supplied loose making them ideal for projects where access is restricted as the frame is supplied in knock-down kit form and provided in easy, handy-size bundles.


The neat, slim aluminium profiles are finished with a durable polyester powder coating finish which is virtually maintenance free. Our roof lanterns can be finished a variety of standard combinations (see the drop down menu above) or any standard RAL Colour. Self-cleaning glass comes standard to ensure easy maintenance all year round.


The Korniche Roof Lantern is designed with a fixed pitch of 25 degrees and is always designed with hips both ends. If you require something different, then you may want to consider our SpanGard Roof Lantern which has more flexibility in terms of pitch, length, width and glass spec.
Our SpanGard Roof Lanterns offer greater design flexibility with variable pitch, shapes and glass specification. Hipped or Gable Ended, Spangard Roof Lanterns are available upto 6000mm wide by infinite length and are suitable for high end domestic or commercial applications. Manufactured from thermally broken aluminium, octagonal, pyramid, hexagon, multi-faceted or irregular shaped roof lanterns are all possible. You can find more details here.


If the height above floor level exceeds 5M, please contact our Technical Department as glass specification likely will need to be upgraded in order to comply with Building Regulations.


We are currently open and operating within Government Guidelines for manufacturers. For the safety of all staff and customers, any visits to our premises must be by pre-arranged appointment and social distancing observed. We’re hear to deal with your orders and enquiries, but please be aware that lead times for some products are taking a little longer than usual. Place your order online today or contact us via Tel 020 8801 4221 or Email

14 reviews for Korniche Roof Lanterns

  1. John

    Great product, great service and great price. Don’t waste your time looking any further!

  2. James Burnett

    These guys are now our ‘go to’ roof lantern suppliers. Great service, lowest prices and reliable people to do business with.

  3. Jack Hammond


  4. Janet B

    Big thanks to Albert & Jochen for the excellent service. The roof lantern went in like a dream and is an amazing feature
    to our new kitchen extension.

  5. Teddy Sutherland

    Just finished installing a 3m x 2m roof lantern and looks superb! Our customer is delighted and all went together so easily.
    Thanks to Steve and Vytas at Lonsdale for a great job! We’ll be back for more.

  6. Stan Golding

    10/10 in terms of product and service. I have dealt with Lonsdale for many years and this new roof lantern is another example of the quality you can expect from this very professional company. Please pass my wishes to Nigel and wish him a long and happy retirement.

  7. Jonathan Fosdyke

    Would have given 5 stars, but glass turned up 2 days late. Having said that, I was kept well informed, but these days service is key in this competitive market.

  8. Kamil

    Very nice people to do business with. They were genuinely helpful with all my questions and the installation video was priceless. Recommended.

  9. Harry Beckham

    Don’t know how they do these roof lanterns at the price they do, but I am pleased they do. I have fitted countless roof lanterns in my time, but these are a dream to install and look the dogs whatsits!

  10. Julia Montrose

    Fantastic product – looks amazing and our builder had it fitted in a day! Thank you Steve for your endless patience to all my questions and for your excellent service!

  11. Claire

    Richard and his team went to extraoprdinary legnths asking all my questions with tireless patience.
    The finished roof lantern looks superb! Thank you very much for your great service and would thoroughly recommend you.

  12. Tommy

    Thank you for your exceptional service from start to finish. A pleasure to do business with a professional company.

  13. Henry Thomas

    First class company to deal with

  14. Charlie & Samantha Hemmings

    Thank you for all your help & advice.

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