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Circular Glass Rooflight
From
£980.30
ex. VAT
Based on the lowest‑priced size/spec. Price updates with selections

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The Brett Martin Circular Glass Rooflight is a round flat glass rooflight designed to introduce natural daylight into flat roof spaces. The circular design creates a distinctive roof glazing feature while allowing daylight to spread evenly throughout the room below.

The rooflight can be installed onto a builders upstand or an insulated GRP kerb, making it suitable for new flat roof construction and refurbishment projects.

Includes free UK mainland delivery and a 10-year warranty.

 

Circular Glass Rooflight

From
£980.30
ex. VAT
Based on the lowest‑priced size/spec. Price updates with selections
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Current configuration
From £980.30 ex. VAT
£1176.36 inc. VAT

Free mainland UK Delivery

Buy with Confidence

All product configurations are reviewed by us to ensure they’re suitable for your roof opening before production and are backed by a 10-year warranty.

Manufactured in the UK

10 year manufacturer warranty

Technical review before manufacture

Circular Rooflight Size Options

The circular rooflight is available in a range of standard diameters designed to suit common roof openings.

Diameters mm: 600, 750, 900, 1050, 1200, 1350, 1500

Smaller diameters are typically used in bathrooms, hallways, and utility spaces where a compact source of daylight is required.

Medium sizes are commonly installed in kitchens and dining areas where focused daylight is needed.

Larger rooflights are often used in open plan rooms where the circular rooflight becomes a central daylight feature within the space.

The selected diameter should provide sufficient daylight while maintaining the roof structure and insulation around the opening.

Frame Construction

The rooflight uses a powder coated aluminium frame finished in Anthracite Grey (RAL 7016).

The slim aluminium frame provides structural strength while allowing the glass area to remain as large as possible. The frame is thermally isolated to reduce heat transfer and improve overall thermal performance.

The powder coated finish provides protection against weather exposure and helps maintain the appearance of the rooflight over time.

Glass Specification

The rooflight uses an insulated double glazed glass unit designed for overhead glazing applications.

Each glass unit includes:

- 6 mm toughened outer pane

- Argon filled cavity

- 7.5 mm laminated Low-E inner pane

The toughened outer pane provides strength and resistance against external impact. The laminated inner pane contains a safety interlayer that helps hold the glass together if damaged.

Low-E glass helps reduce heat loss through the rooflight while maintaining good daylight transmission.

Thermal Performance

The circular rooflight achieves a U-value as low as 1.16 W/m²K.

This level of thermal performance helps reduce heat loss through the roof while maintaining natural daylight levels within the room below.

Installation Options

The rooflight can be installed using two methods depending on the roof construction.

1. Builders Upstand Installation – Used where a roof upstand is already formed as part of the flat roof structure.

2. Insulated GRP Kerb – Used where a prefabricated kerb is required to provide the correct roof height and waterproofing detail.

Both installation methods are commonly used in flat roof extensions and refurbishment projects.

A contemporary look is achieved with this streamlined circular design featuring a slim and minimalist framework.

Our Circular Glass Rooflight provides an eye-catching solution for central daylighting features or as an overhead addition in darker areas. With diameters available from 600 mm through to 1500 mm, this premium rooflight range enhances everything from compact bathrooms to spacious living zones.

As well as delivering elegant aesthetics, this rooflight offers a practical, hassle-free experience for your build schedule—thanks to quick delivery on stock sizes, straightforward installation, and minimal maintenance.

Benefits

  • Creates a striking daylighting feature for contemporary interiors
  • Modern circular flat glass design with a sleek, low-profile frame
  • Aluminium frame powder coated to RAL 7016 (Anthracite Grey)
  • Excellent thermal performance — Ur-value as low as 1.16 W/m²K
  • Laminated inner pane ensures safety for occupants below
  • Non-fragile tested:
    • To CWCT TN-67 for Class 1 roofs
    • To ACR[M]001 Class B
  • 10-year warranty available
  • Delivered in just 5 working days for standard sizes
  • Installation-ready for both new builds and refurbishments
  • Mountable to existing builder’s upstand or insulated GRP kerb

 

Features

  • Sizing options: 600 mm, 750 mm, 900 mm, 1050 mm, 1200 mm, 1350 mm, 1500 mm
  • Kerb options:
    • Glazed unit only – for installation on an existing builder’s upstand
    • 150 mm insulated GRP kerb – factory-finished for easy install
  • Glazing options:
    • Standard clear laminated double glazing
    • Optional: solar control, self-cleaning, satin obscure
  • Finish options: Can be powder coated to any single RAL colour on request
  • Streamlined design for minimal maintenance
  • Manufactured in the UK to high industry standards

How Your Circular Rooflight Is Delivered

  • Delivered kerbside by the Brett Martin transport fleet
  • Rooflight units arrive fully assembled
  • Driver can assist with unloading if required
  • Sacrificial foam runners help protect the rooflight during unloading
  • Pallets or packaging are removed by the driver after delivery

Important: Please ensure someone is available on the day of delivery to help unload the rooflight from the lorry.

Delivery Times

Circular glass rooflights delivered within 30 working days. Free UK mainland delivery.

Orders placed before 12 noon (Monday to Friday) are prioritised for dispatch. Lead times may extend for non-standard sizes or specifications.

Glass Options

  • Clear laminated glass as standard
  • Optional upgrades: solar control, self-cleaning or satin obscure glass

Delivery Cost

Delivery is free to all UK mainland addresses.

For non-mainland and remote postcodes, please contact us before ordering.

Excluded Delivery Postcodes

We currently do not deliver to the following areas without prior arrangement:

Scotland, Northern Ireland, Channel Islands & Remote Areas

HS, IM, IV, ZE, BT, KA27–28, KWA, PA20–49, PH17–50, PO30–40, TR21–25, LL58–78

Contact our team to check if delivery to your area can be arranged.

Contact Us

Email: info@daylightsystems.com
Phone: +44 (0)24 7660 2022

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