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Mardome Reflex Dome Only Rooflight



Please Ensure Sizes Ordered Are Correct – Sizes Cannot be Changed Once The Order Is Processed.

This item is made to order
All prices are subject to 20% VAT

Contact Us
UK mainland delivery
Great U values
Fast delivery
Latest design avoids cold spots and minimises the risk of condensation
Tamper Proof Fixings Supplied as standard
Available in Single Double & Triple Skins

Buy Mardome Reflex polycarbonate domes

If you’re looking for increased natural light for your modern building then Mardome Reflex polycarbonate glazing-only dome rooflights are ideal for flat roofs. The dome has a low rise and flexible fixing positions that are designed to help overcome the challenges associated with roofing refurbishment projects.

We sell a range of Mardome rooflights, polycarbonate rooflights, and roof domes, so you’re sure to find what you’re after if the Mardome Reflex isn’t for you. You can also view our wider range of rooflights and skylights for quality products at great prices.

What is a Mardome Reflex polycarbonate rooflight?

The Mardome Reflex is a glazing only polycarbonate dome rooflight. The clever design is perfect for refurbishment tasks where glazing needs replacing, and it’s made with Marlon FSX polycarbonate.

What is Marlon FSX polycarbonate?

Marlon FSX polycarbonate is an incredibly durable material that’s around 200 times stronger than glass, despite weighing half as much. It features dual-sided UV protection that averts around 98% of UV radiation penetration.

Is the Mardome Reflex dome strong?

Using Marlon FSX Longlife polycarbonate, the unit offers more strength than glass. It is resistant to breakages as well as challenging weather conditions, making this unit reliable and safe.

Mardome Reflex upstand information

The Mardome Reflex has been designed to fit on a builders upstand that is weathered and 150mm high, with an ideal width of 75mm. However, it can also work with custom width upstands. 

Mardome Reflex benefits

  • It’s quick and easy to install, and works with a variety of upstands
  • It’s an affordable alternative to other rooflights, and works great as a replacement
  • It’s made with robust and reliable polycarbonate, making it long-lasting and cost-effective
  • It’s incredibly thermally efficient, so you won’t have to worry about rising energy bills – learn more about thermally efficient rooflights
  • It attracts more natural light into your room, making it a more pleasant living or working space – view our blog on the benefits of natural light in the workplace
  • It’s visually attractive, and looks great on any property type
  • It’s comes in a range of bespoke sizes, meaning you can find one that’s right for you
  • It utilises advanced materials and design principles that minimise cold spots and condensation

Mardome Reflex features

  • It’s available in single, double, or triple skin
  • It’s available in various finishes, including opal, clear, patterned and bronze
  • It’s supplied undrilled, and comes with a self-adhesive foam sealant, sealant tape, weathertight washers and as cover plugs
  • All undrilled fixing flanges are supplied, providing a level of flexibility when it comes to fixing to current builder’s upstands
  • It’s designed in accordance with the ISO9001 approved quality system

How much does a Mardome Reflex cost?

As of December 2022, the Mardome Reflex costs between £99.42 and £921.06 excl. VAT, making it an incredibly affordable solution. View our full guide on skylight costs.

More rooflights

We sell a range of rooflights at Toughened Glass Systems, including:

Measuring & Installation Guide

Please see fitting instructions below and downloadable PDF link at the bottom of this page and product data sheet.

This product fits to an existing kerb. 70mm or 100mm wide fixing flange which is supplied undrilled, for effective, custom fitting.

The Mardome Reflex dome only unit fits directly on to the builders upstand. If your external upstand size with finished roofling material is 1200mm x 1200mm then you would need to buy the 1200mm x 1200mm unit from the drop down menu on our website. The unit supplied has a built in tolerance to allow for small differences with the kerb or uneven roofing material as shown below.

Acceptable tolerance:

  • 70mm flange option = dome size +18/-60mm
  • 100mm flange option = dome size +18/-120mm

The above tolerances demonstrate if you purchase a 900mm by 900mm size from our drop down menu, this would be the size shown above of your external upstand width. As an example, if you selected the 70mm wide flange option this would work even if the external kerb dimensions were between 918mm to 840mm.

TB185 Mardome Reflex or Circular Installation(Click here to view PDF)

TB201 Datasheet Mardome Reflex and Circular products(Click here to view PDF)

Technical Information

Glazing details:

*Centre pane U-value is a measure of the thermal efficiency of the glazing type.

Part L Building Regulations require a U-value of at least 2.2W/m2K: Brett Martin Daylight Systems recommend the use of at least triple skin rooflights in all applications


Choice of low rise dome or pyramid outer shape providing a contemporary external appearance


The table below shows the light transmission properties of the Reflex polycarbonate rooflight.

Clear – high visibility

  • Maximum light transmission
  • Maximum clarity of vision of views and objects through the dome

Opal – diffused light and solar control

  • Combines privacy with high levels of diffused light transmission
  • Prevents solar glare and reduces solar heat gain
  • Impairs vision of views and objects through the dome

Patterned – privacy

  • Combines privacy with high levels of light transmission
  • Diffused daylight
  • Impairs vision of views and objects through the dome

Bronze – solar control

  • Reduces solar glare and heat gain
  • Provides a lower light transmission


The product is supplied with a 10 year manufacturer’s warranty.

Delivery & Lead Time

All sizes below are on a 2-3 working day lead time. For all other sizes, lead time on application. Usually, other sizes will be 3-7 working days but this depends workload. We do not recommenced arranging equipment and installation until the item has been delivered.

450×450, 600x600m, 750×750, 900×600, 900×750, 900×900, 1050×600, 1050×750, 1050×1050, 1200×600, 1200×900, 1200×1200, 1350×1050, 1350×1350, 1500×1050, 1500×1500, 1800×900, 1800×1200, 1800×1800

Please note if 100mm flange is selected the product will be on a 7-working day lead time

Please ensure labour is on site to sign for and off load the product from the vehicle as the driver from the transport company is not insured to deliver inside the property.

Based on 210 reviews
Bob toploft
Bob toploft
Trustindex verifies that the original source of the review is Google.
I am the owner of Top loft company ltd, after reviewing reviews from various companies I ordered 2 juliet balconies from tgs arrived within 3 weeks, comunications and help was brilliant. Thanks for all your help.
Jim H
Jim H
Trustindex verifies that the original source of the review is Google.
Great service from the team. Easy to order, good buying guidance and clear install instructions for my builder. Rooflights look absolutely great! The team at TGS couldn't have been more helpful in organising a smaller delivery vehicle to help with restricted access. Highly recommend TGS.
Jack Smith
Jack Smith
Trustindex verifies that the original source of the review is Google.
Great service from a very knowledgeable company. Thanks team Toughened Glass Systems.
Paul Smith
Paul Smith
Trustindex verifies that the original source of the review is Google.
I was spending a lot of money on several rooflights so I wanted to make sure I got it right and I did. The professionalism, expertise and the quality of the roof lanterns really set Toughened Glass Systems apart.
Tyrone Eldridge
Tyrone Eldridge
Trustindex verifies that the original source of the review is Google.
There are no complaints about the experience with TGS. The entire process of ordering, supplying and delivering was flawless. I would really recommend you order your flat roof sky lanterns from these guys.
Robert Childers
Robert Childers
Trustindex verifies that the original source of the review is Google.
Best place for rooflights, they supply many different types and options. Thanks for all your support Toughened Glass Systems!
John Smith
John Smith
Trustindex verifies that the original source of the review is Google.
The glass balustrade gives us an amazing view onto the lake outside. So happy we ended up going for the frameless glass balcony from Toughened Glass Systems instead of one with posts
Louise Newsome
Louise Newsome
Trustindex verifies that the original source of the review is Google.
My job is to design the interiors for a lot of houses and a lot of times the hardest part was when the client wanted some really inexpensive rooflights that should look like some contemporary ones as well. That until I found Toughened Glass Systems and started working with them more and more. They have a lot of this kind of stuff at a very decent price, a price for anyone I can say. If you’re looking for cheap skylights for flat roofs or any types of roof lights, they probably have something for you.
Krystina Taylor
Krystina Taylor
Trustindex verifies that the original source of the review is Google.
Always kept us up to date with our order even when delayed by a few days. Great service from the start and good quality glass balcony delivered.