FREE UK DELIVERY (Excl. Scotland, West Wales, Devon and Cornwall)

Fixed Rooflight Share
10 year warranty

Starting from £372.00 (Excl. VAT)

Customise & buy

Please provide external kerb dimensions.
Other colours, sizes and quantities available on request.

Stock items are usually delivered within 1-2 days
(*subject to availability)

FREE DELIVERY (Excl. Scotland, West Wales, Devon and Cornwall)

£1,398.00 + VAT
Secured by design Secure by Design - Building regulations Part Q compliant solution available, please call: 0116 2610 710
All of our products come with the following features

Duplus Fixed Rooflights

Contemporary styled fixed rooflights, incorporating structural silicone glazing techniques to ensure a complete, factory-finished, high-quality structure, manufactured in our UK factory. Fully watertight with a flush-glazed and elegant appearance. Suitable for both flat roofs and pitched roofs.

Our fixed rooflights are non-opening and incorporate fully enclosed double-glazed units to eliminate the risk of breakage. Traditional stepped-edge flat glass roof lights have a significantly higher vulnerability to breakage due to exposed edges.

Advanced Features

Duplus fixed flat rooflights are double glazed in clear toughened and HEATSOAKED safety glass as standard.

We offer a range of tints:

  • Blue tint
  • Bronze tint
  • Grey tint

Or if preferred, an obscure finish for privacy or high-performance solar control to minimise solar gain (heat) (g) and maximise light transmittance (Lt).

Easy installation & Secure

Fixed roof lights are easy to install and are provided as a fully assembled unit for your convenience. An integral perimeter gasket creates an air and water seal without the need for site-applied silicone.

The product is secured via screw fixing to the builders kerb externally and a matching cover clip is then applied to conceal the fixings.

We have a range of secure rooflight options available for both new build and renovation properties. For new build projects, we have Secured by Design (Part Q) available as an enhanced security variant.

Material Specifications & U-Value

Our fixed rooflights satisfy thermal performance criteria defined in the Building Regulations and achieve a high resistance to condensation under normal conditions. We can provide True U-value and Ud-values upon request.

All units are tested for weather tightness to BS EN 14351-1:2006 +A1:2010 clauses 4.2, 4.5 and 4.14 – Our test reports are available in our technical section.

As standard, the extruded aluminium perimeter frame is powder-coated RAL 7016 dark grey matt or RAL 9005 black matt. We can offer other RAL colour options upon request.

Our glazing specifications incorporate clear low ‘E’ glass as standard, achieving a center pane U-value of 1.1 W/m²K. This product is also available triple-glazed

We deliver fixed rooflights FULLY ASSEMBLED and completely weathertight. No time-consuming assembly on site required. Furthermore, significantly higher security compared to kit systems.



Yes. Our fixed rooflights are suitable up to a maximum roof pitch of 70 degrees (excluding sliding rooflights and roof lanterns).

The biggest fixed roof light we provide with a single length of glass is 2m x 3m.

We stock 600mm x 600mm, 750mm x 750mm, 1000mm x 1000mm, 1000mm x 1200mm and 1000mm x 1500mm. All sizes are external kerb/upstand dimensions. Lead times vary, pleace contact us for the latest update on lead times for rooflight stock items.

Our flat fixed rooflights are suitable for both flat and pitched roofs made of slate, tile, zinc or any other roof material, due to the independent upstand. You will need to create the upstand/kerb and then weather it with your roof material e.g. single-ply membrane, GRP, fibreglass etc. Our rooflight will then sit and seal against your weathered upstand. We provide you with all the fixings you need. You do not need any additional flashing kits with our fixed rooflights.

Yes, we do provide a self-cleaning option. Details are on request.

The maximum size is 2m x 3m for a fixed non-opening rooflight, which can be installed on a pitched roof.

Yes our rooflight sizes include a 10mm tolerance, so you can build the kerb to the same size as the size stated on the website.

“Very friendly and helpful customer service throughout the purchasing process. Very nice and good quality rooflights!”
Why Duplus?
Over 60 years of experience
Order information

For further information and our full terms and conditions, pleasesee our Customer Services page.

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Delivery or collection

All of our rooflights can be delivered around the UK, or you can collect from our factory in Leicester.

Stock items delivered within 48 hours (subject to availability).

Custom sizes normally 20-25 working days (subject to workload at the time of ordering).