
Brett Martin pyramid roof lanterns, made to size
A striking square pyramid lantern with four sloping glazed sides rising to a central apex — made to your exact size by Brett Martin, with free UK delivery and a 20-year guarantee.
Brett Martin Pyramid Roof Lantern
Standard sizes are stocked for **faster delivery**. Custom sizes are made to order with a longer lead time.
£0.00 inc VAT & Free Delivery
Brett Martin Pyramid Roof Lantern – Slim, Strong and Brilliantly Warm
The Brett Martin Pyramid Roof Lantern is a premium, double‑glazed aluminium rooflight system designed to flood your space with natural light while keeping heat in and weather out. With a fully thermally broken frame, clean sight lines and a choice of glass specs, it's ideal for kitchens, living areas and extensions where you want a bright, open‑plan feel without sacrificing performance.
Inner Glass Options – Toughened or Laminated
Every Brett Martin Pyramid Roof Lantern is supplied with self‑cleaning outer glass as standard, paired with a high‑performance inner pane. You can choose between:
- Toughened inner glass – the robust, standard option for most applications. Toughened glass is up to five times stronger than ordinary glass and breaks safely into small granular pieces.
- Laminated inner glass – recommended by the Rooflight Association for enhanced overhead safety. Laminated glass is made from multiple layers bonded together, so if it breaks the inner layer holds together rather than falling into the room.
If you're unsure which option is best for your project, we can advise based on room use, height above floor level and any specific safety requirements.
Thermal Performance
- Centre‑pane glazing U‑value of around 1.2 W/m²K.
- Overall rooflight Ur‑value typically between 1.8 – 2.0 W/m²K, depending on specification.
- Fully thermally broken aluminium frame to reduce cold bridging and condensation risk.
This performance meets or exceeds the limiting values for rooflights in current English Building Regulations, helping you hit your energy targets as well as your design goals.
Standard & Bespoke Sizes
- 9 core standard sizes from 1500mm x 1000mm up to 3000mm x 2000mm for fast delivery.
- Custom sizing available right down to individual millimetres – we price truly bespoke sizes by the next size up in the Brett Martin grid, with a small additional charge for made‑to‑order manufacture.
- Pyramid lanterns are available in a range of square sizes for a distinctive architectural feature.
Use the calculator above to get an instant price for both standard and bespoke sizes. If you're working on a larger project or specifying multiple units, get in touch for tailored advice and project pricing.
Aluminium Frame Colour Options

Black / Black
RAL 9005 Black external & internal

Black / White
RAL 9005 Black external & RAL 9010 White internal

White / White
RAL 9010 White external & internal

Grey / Grey
RAL 7016 Grey external & internal

Grey / White
RAL 7016 Grey external & RAL 9010 White internal
Made in Britain
Crafted in our UK facility
20-Year Guarantee
On all glass units
Free UK Delivery
On every order
Any Size, Made to Order
Bespoke to the millimetre
5.0 Google Rating
Loved by customers
How made-to-measure ordering works
From first measurement to final fit, ordering a bespoke rooflight takes just a few minutes.
Enter your sizes
Type your exact width and length to the millimetre — no rounding, no compromise.
Choose your options
Select glazing, glass type and finish to suit the look and performance you need.
See your price instantly
A transparent, made-to-measure price calculated live — no waiting for a quote.
We make & deliver free
Your rooflight is manufactured in Britain and delivered free, ready to install.
Prefer to talk it through?
Configure your exact sizes above for an instant price, or talk it through with our team — we're happy to advise on the right spec.
Pyramid lantern FAQs
What is a pyramid roof lantern?
A pyramid lantern has a square base with four triangular glazed sides that slope up to a central apex point — a dramatic, symmetrical feature that draws the eye and the light upward.
Does it have to be square?
Yes. Pyramid lanterns are square by design, so the width and length are the same. Enter your size above and the calculator keeps it square automatically.
What glass options are available?
Choose a toughened or laminated inner pane, in clear or blue-tinted glass. Laminated adds safety, security and acoustic benefit for overhead glazing.
What sizes can you make?
Pick a standard square size for the quickest turnaround, or order a fully bespoke pyramid made to your exact dimension.
What frame colours are available?
A range of powder-coated finishes with dual-colour options, so the internal and external frame can be specified separately to suit your space.
Is delivery free and are they guaranteed?
Free UK delivery on every order, and a 20-year guarantee — genuine premium Brett Martin lanterns.
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