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Duplus have over 60 years experience of designing and manufacturing high performance market leading innovative rooflights. Our products have been tested to the highest standards in terms of weather performance and security. Our Approved Document Part Q compliant rooflights meet the strict standards required to achieve Secure by Design accreditation. Also accredited with Dow Corning 'Quality Bond' certification and using state-of-the-art Dow Corning products, we can guarantee that our rooflights are manufactured to the highest standards in quality control, quality assurance and world class performance in structural silicone glazing. Many of our products have been used on numerous prestigious projects such as: Tate Modern and Savoy Hotel.
Reviews 269
Andrew Jones
Oct 14,2024Fantastic product from Duplus who were able to supply a large single piece rooflight that was too big for our main window supplier to manufacture (a nationally recognised supplier of aluminium doors and windows). Duplus had a problem with the supply of the glass which nearly meant we didn't have delivery on the same day as the crane which would have cost more to rebook than the window itself. However they pulled out the stops and managed to get a replacement manufactured and delivered on time. The mark of a great company is always how they deal with problems that arise and Duplus were very professional at every step.
Ketan Pancholi
Feb 23,2024The customer service was very good and I will definitely go back to you guys again. Very happy with the product can’t go wrong and will recommend friends and family going forward.
Joel
Feb 16,2024Great contact from the company. Amazing product and I would recommend using Duplus. We had a 1.5x3m roof lantern and it looks amazing.
Kelly Foster-Hall
Jan 02,2024Fantastic product, fantastic customer service!!
St Ives Community Orchard
Nov 16,2023We had a complicated roof light (12 sided!) yet the sales team were totally enthusiastic and helpful, and provided us with a competitive quote. They collaborated with our main contractor to provide a detailed solution for them to work to, and delivered to site ahead of schedule. Our roof light is beautiful, looks great quality, and installation when smoothly.
Stephanie Bund
Oct 17,2023Very helpful throughout and competitive.
Mr G Crasto
Sep 16,2023I was having my flat roof refurbished, and my roofing contractor recommended Duplus products for replacing my old roof lights. Duplus also advertise and sell their products on eBay and they represented good value for money. I purchased two units which I collected in person from their Leicester based premises. The entire process from initial contact with Duplus to payment and collection was straightforward and simple. My roof contractor had no problems installing the units (which look fantastic!) and are well designed and manufactured imho. The units have just been installed so I cannot comment on durability but they do come with a 10 year warranty...! I would recommend Duplus products for quality and value.
PAUL
Jun 08,2023Can't fault Duplus. They gave me a competitive quote, the rooflight came on time as promised, it was very well packaged and is of excellent quality. So pleased with it - it looks amazing. Thanks so much to Amar who was incredibly helpful to deal with.
Island Windows
May 24,2023Great experience buying from these guys, very helpful and knowledgeable on products. The whole process from start to finish was straight forward. The product itself is great quality, easy to install and looks absolutely fantastic. We Will definitely be using these guys again.
WestlineElectric sliding roof
Apr 28,2023This company supplied me with an electric sliding rooflight absolute first-class service and most importantly after service there was an issue after it was fitted they drove all the way down from Leicester to fix the problem they did it quickly and were very professional I wouldn’t hesitate to recommend Mr West Kent
Peter R
Apr 03,2023After searching various suppliers for our flat roof windows we placed our order with Duplus due at that time to cost, customer reviews and an excellent informative website. Having now received and fitted the windows I am extremely glad we chose Duplus. The product was extremely easy to install, I'm just a DIYer not a tradesman yet the install was very easy with all fixings and spacers provided. The quality of the windows is very good and the customer experience second to none with the most friendly and helpful team answering my questions and even phoning me back to ensure all is OK.
Jason Barrow
Feb 20,2023Had a flat roof window from this place, packed so well and delivered on time, so happy with my new window
Chris Hudson
Feb 09,2023great communication
Chris Ogle SJA
Jul 06,2022I had a good experience with Duplus. I had researched the type of product we needed which helped; they provided a range of flat Rooflight sizes and we needed two 3m x 1m flat Rooflights. The sales team were easy to deal with and knowledgable with regards fitting. The product was delivered efficiently in a timeframe communicated from the outset. We’ve just installed them and they look fabulous.
Jason D'Heureux
Jun 20,2022We ordered a very large, sliding, electric sky light from DuPlus, and absolutely love it. The item itself is beautiful and works perfectly, and Gavin was brilliant keeping us informed throughout the order process. He even helped us troubleshoot possible access solutions on the delivery day, when we realised we wouldn't be able to fit it up our communal stairwell to the top floor. A+++!
Katie B
Feb 02,2022Excellent service and communication from start to finish. Gavin and his team guided us expertly through our order of 7 roof lights with a mix of manual/electric operation and colour choices. The lights arrived on the date promised in excellent condition. We were guided through any pitfalls to ensure that it all went smoothly. Thank you so much.
Ian
Jul 13,2021Duplus have supplied me with a 2.5 x 1.5 lantern. The service was great from start to finish, I was kept fully informed by the team throughout the process. The roof light looks great, best part of the extension in my opinion. It is clearly a very well designed and engineered product which made it incredibly easy to fit (my builder was reluctant to install it but the team assured me it was easy so I did it myself with no issues at all). I wouldn’t hesitate recommend.
Matt D
Jun 16,2021Great customer service in dealing with Amar. Product looks superb. Great value for money. Thanks Team Duplus
Phil Crowther
Jun 01,2021Excellent service and great communication. Rooflight arrived at the specific time quoted on the agreed delivery day. You can't ask for better than that. Really happy with the service. Let's hope the rooflight fits...
Amy Linke-Ball
Jan 31,2025One of the best customer service, I've ever received ! Happy to answer all my queries and couldn't be more helpful when my project was delayed, meaning my ridge-light order pushed back. Special thanks to Amar, super chuffed with our new ridge-light !