Do I need planning permission for a roof lantern?

In most cases, adding a roof lantern to an existing extension does not require planning permission, as it typically falls under Permitted Development. However, if your property is listed or in a conservation area, additional consent may be required. We recommend confirming with your local planning authority.

What glazing options are available for roof lanterns?

We offer double and triple-glazed roof lanterns with self-cleaning and solar control glass options. All glass is safety-rated to UK Building Regulations.

How do roof lanterns perform in summer heat?

Modern roof lanterns with solar control glazing significantly reduce heat gain while maintaining excellent light transmission. We can advise on the best glass specification for your orientation and use case.

Can a roof lantern be added to an existing roof?

Yes, we can install roof lanterns into existing flat roof structures, provided the structural opening is correctly prepared. We'll carry out a site survey to assess suitability.

Our Services

Roof Lanterns

Flood your home with natural light

More light, more room

A new roof lantern or flat rooflight can completely change a kitchen, an extension, or a tired conservatory, pulling daylight deep into the plan and making the whole room feel twice the size. For 16 years we have been fitting glazed roofs across Essex and East London, from small flat rooflights to full architectural lanterns.

Made to your opening

The range covers flat fixed rooflights for 0 to 15 degree pitches, architectural roof lanterns made to your exact opening, walk-on rooflights for upper-storey terraces, and full conservatory roof replacement. Manual and electric openers, self-cleaning glass, solar control tints, and frame colours across the full palette.

Certified, guaranteed, finished

Every lantern comes with a 10-year guarantee on the frame and the sealed unit, and every installation is certified under our Assure Competent Person Scheme. We handle the structural opening, the flashings, the internal plasterwork detail, and the building regulations sign-off, so the project is ready to use the day we leave.

Assure certified10-year guaranteeNo subcontractorsFinance available

Priority routes

Roof glazing depends on the opening and the room below

A raised lantern, flat rooflight, walkable rooflight, and opening rooflight solve different problems. On survey we look at the roof build-up, kerb height, room use, orientation, drainage, access, and whether the priority is a stronger architectural feature or a quieter low-profile glass panel.

Aluminium roof lanternsRaised hipped lanterns for extensions where the roof glazing should be a feature.Flat rooflightsLower-profile roof glazing where a clean roofline matters more than lantern height.Opening rooflightsA better route when overhead light and ventilation are both needed.

Roof Lanterns range

Browse Roof Lanterns

Raised lantern forms

Raised Lanterns

Sit proud of the roofline for a stronger architectural statement

Raised hipped form

Maxi-Hipped Roof Lantern

A made-to-measure aluminium roof lantern for flat roof extensions and garden rooms. Ultra-slim 60mm ridge, self-cleaning glass as standard, available in 5 days.

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Square openings

Maxi-Pyramid Roof Lantern

A four-sided pyramid lantern designed specifically for square openings. Delivers the architectural presence of a lantern with a symmetrical form that sits cleanly over a square flat roof opening.

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Flat glazing

Flat Rooflights

Low-profile units that keep the roofline clean and minimal

Single panel, flush

Maxi-Flat Rooflight

A single-panel flat rooflight for flat roofs. Uninterrupted views, no dividing bars, self-cleaning glass as standard, and a 5-day express manufacturing lead time.

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Two panels, wider span

Maxi-Sky Rooflight

A multi-panel flat rooflight for wider openings. Where a single panel is too large, the Maxi-Sky uses a central bar to split the span cleanly while maintaining a low, flush profile.

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Walkable surface

Maxi-Walkon Rooflight

A structural walkable rooflight for flat roofs that form part of an accessible terrace or deck. Toughened laminated glass rated for foot traffic, with the same slim aluminium frame and self-cleaning glass as the standard Maxi range.

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Opens for ventilation

Maxi-Opener Rooflight

A flat rooflight that opens electrically or manually for ventilation. The same single-panel clean profile as the Maxi-Flat, with a built-in opening mechanism so you can bring in fresh air without a separate vent unit.

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Conservatory transformation

Conservatory Roofs

Transform an underused glass room into a year-round living space

Full roof replacement

Conservatory Roof Solutions

Transform an underused conservatory into a comfortable, year-round room with an insulated replacement roof. Controls temperature in both summer and winter, reduces energy bills, and stops furniture fading.

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Checkatrade

“CII fitted our roof lantern on the rear extension. Excellent craftsmanship, very professional team, and the room is transformed. Highly recommended.”

Google

“Roof lantern fitted over our orangery. The light it brings in is incredible. The installation team were excellent and left the site spotless. Highly recommend CII.”

Read all reviews on Google

Questions answered