Can You Add a Roof Lantern to an Existing Flat Roof?
A roof lantern can often be retrofitted to an existing flat-roof extension. Learn what must be checked before cutting the opening.
How to Clean and Maintain a Roof Lantern Safely
Keep your roof lantern bright with a safe cleaning routine for glass, powder-coated aluminium, drainage channels and seals.
Are Roof Lanterns Noisy in the Rain? Glass and Acoustic Performance
Find out what affects rain noise on a roof lantern and how glazing, room finishes and weather conditions influence what you hear.
Roof Lanterns for Kitchen Extensions: Sizes, Styles and Design Ideas
Plan a brighter kitchen extension with practical advice on roof-lantern size, position, colour, glazing and interior design.
Roof Lantern Installation: The Complete Step-by-Step Process
Understand the main stages of roof-lantern installation, from structural opening and kerb preparation to glazing and final checks.
Where Should a Roof Lantern Be Positioned in an Extension?
Use room layout, daylight, roof structure and sightlines to find the best position for a roof lantern in your extension.
Roof Lantern Condensation: Causes, Prevention and Solutions
Learn why condensation appears on roof lanterns, how to reduce it and when misting could indicate a failed sealed glazing unit.
Are Roof Lanterns Energy Efficient? U-Values Explained Simply
Understand roof-lantern U-values, thermal breaks and glazing choices so you can compare energy efficiency with confidence.
Do Roof Lanterns Make a Room Too Hot? Glazing and Solar-Control Guide
Roof lanterns can transform a room without making it uncomfortable. Learn how glazing, orientation, ventilation and shading control summer heat.
Do Roof Lanterns Need Planning Permission? UK Guide
A roof lantern may be covered by the planning status of a compliant extension, but permission can still be required because of its height, location, heritage controls or removed permitted-development rights.
How to Measure for a Roof Lantern: A Step-by-Step Guide
Measure a roof lantern in millimetres using the external kerb dimensions requested by the supplier. Check the length, width, diagonals and level in several places before ordering a made-to-measure unit.
How Much Do Aluminium Roof Lanterns Cost in the UK? (2026 Guide)
Most homeowners pay 1,200 to 4,500 pounds supply-only for an aluminium roof lantern in 2026, or roughly 1,800 to 6,000 pounds fitted. Here is what drives the price by size and how to get your exact figure online.