pyramid skylight
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Infini Lantern Roofs

Infini lantern roofs from Quantum Windows are a sleek frameless lantern roof system featuring integrated thermal breaks to boost energy efficiency. When you want to offer your customers a lantern roof system that provides uninterrupted views of the blue daytime or starry night sky, the Infini lantern roof is a great addition to your product portfolio.

  • Frameless internal finish
  • Flush glazed external finish
  • Pyramid or lantern shape
  • Rapid installation design
  • Structurally bonded glazing
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Product features

Design features

The Infini lantern roof has a fixed fall of 40 degrees. This allows light to reflect off the glazing and maximise natural light intake into a property interior. With oversized glazing available on request, the Infini lantern roof offers installers complete customisation to meet all their customer’s design specifications. Available with a pyramid or lantern shaped design, its aesthetic appearance is matched by its outstanding insulating capacity.

Product options

  • Maximum size 2000mm x 3000mm
  • Maximum weight 400kg
  • 28mm – 50mm glazing thickness
  • 40-degree fixed fall lantern pitch
  • Enhanced insulating capacity
  • Class 9A water tightness
  • Class 4 air permeability
  • U-values as low as 1.0 W/m²K
  • Integrated thermal break technology


Maximum length

Maximum width

Maximum weight

Profile height

Glazing thickness

Size Limits

3000mm (larger available on request)

2000mm (larger available on request)



28mm to 50mm



Unique pyramid and lantern shaped roof light designs

When you want to offer your customers a unique and distinctive lantern roof design, the Infini lantern roof is an excellent option. Its pyramidal or lantern shaped design enables natural light to be reflected in different directions into the room interior, boosting the brightness and helping to create a lighter living environment. With outstanding thermal performance thanks to the use of integrated thermal break technology, the Infini lantern roof will allow you to provide your customers with a lantern roof that does not compromise energy efficiency.

internal view of roof lantern

Frequently Asked Questions

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Contact Us

What are your lead times?

Lead times can vary per product. For stock PVCu colours we work to a 10-15 working day schedule. For more up to date lead times on any specific product e-mail us at where we will be happy to help.

Are your products compliant with new building regulations?

Our Eurocell PVCu range of products are fully compatible with all new build regulations. Quantum Windows has a number of secured by design certifications to provide you with peace of mind and our quality systems in place are all aimed at producing a quality product first time, every time.

Currently, our range of Aluminium double glazed Aluk 58BW HI Windows, Aluk 58BD HI Residential doors, EdgeGLIDE+ Sliding door and Unifold HI all have a U-value of 1.4 or below and are compliant with new building regulations. Our range of compliant products is always growing, so please give us a call for the most up to date information.

Please note that you will need to specify on your enquiry if you need your product to meet the new building regulations.

Where do you deliver to?

We deliver weekly to the West Midlands, Derbyshire, Leicestershire, Warwickshire, Oxfordshire, Berkshire, Surrey, West Sussex, East Sussex, Kent, Greater London, Hertfordshire, Essex, Suffolk, Cambridgeshire, Bedfordshire, Buckinghamshire. Norfolk and of course Northamptonshire.

aspects white open bi fold doors

I have been buying windows and doors from Quantum Windows for over 25 years. I have always found the pricing very competitive and the quality has been very high. On the rare occasion a problem has arisen it has been dealt with swiftly and efficiently. The office staff are always polite, friendly and professional and we have built a strong relationship over the last 25 years. The drivers are excellent. I know them very well and they have adapted to my ways of working and are always willing to help and accommodated me.

Craig Gutteridge

“We have dealt with Quantum Windows for 13 plus years, we find the staff to be courteous and polite and any queries we may have are dealt with promptly and efficiently, nothing is too much trouble”

Jackie - Accounts Dept

W R Enterprise Glass & Glazing Ltd.

We have been buying from Quantum Windows for almost 30 years now, they offer a wide product range and the Team have excellent product knowledge which is invaluable in an ever-changing market.

All team members are friendly, helpful and efficient, orders are processed with care and quotations provided promptly. I would have no hesitation in recommending Quantum Windows.

Vicki Webb

Clearview 2000 LTD

‘We have used Quantum Windows for many years now, we have always found them to be very easy to work with, the staff are all very helpful and friendly, they are always available to offer any help should we need it, excellent product!’


Chapel Windows

Glevum and Quantum have enjoyed an excellent working relationship for a number of years, working together to provide a high quality, value for money product offering and service for the end user.

As well as delivering a high quality product, the knowledge and experience of the staff at Quantum is invaluable to a customer in a market where Building Regulations are constantly changing.

Mike Donaldson

Glevum Design & Build

As installers of both PVCu and Aluminium to the New Build market, the importance of on time delivery is totally time critical.
Over the last 20 years Quantum windows have worked closely with PGB to partner with us and deliver our offer to site.
Highly professional, and a pleasure to have worked with them so closely over the years.

Phil Martin CEO

Portico CB Ltd

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