• Direct Roofing Systems Icon Energy efficient patio door option for residential and commercial sectors
  • Direct Roofing Systems Icon Significant noise reduction for end users
  • Direct Roofing Systems Icon Multiple sashes and/or rails for large scale projects
  • Direct Roofing Systems Icon Standard colours are anthracite grey, white, black with other RAL colours available

Order your next Cortizo patio doors system from Direct Roofing Systems for your next aluminium sliding patio doors installation, whether in Nottinghamshire or the surrounding counties. We know a good product when we see one. That’s why we manufacture patio doors using Cortizo aluminium. With decades’ worth of experience and long lasting relationships with our customers, we want to ensure the best products get to you and your clients. Start an online quote or call our Nottinghamshire team.

Direct Roofing Systems
Cortizo 4700 Aluminium Sliding Patio Doors

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These aren’t just any patio doors. Cortizo patio doors are perfect for residential and commercial projects that are looking for energy efficiency, noise reduction, and weather resistance. You can order multiple sashes and rails for these wide doors.

For new builds trying to meet energy standards, these doors are made of premium materials. Aluminium works wonders on thermal efficiency, and we offer polyamide strips of different thicknesses for an even larger thermal break. Make sure that your client is improving their WER with these patio doors.

Energy efficiency and style can combine when you choose our Cortizo patio doors. Customers don’t have to worry about matching style or design since we offer a variety of colours and powder coating. When you contact us, we can talk to you about bicolour options, RAL mottle or rough colour powder coating, and even anti-bacterial coating.

Choose our patio doors for your next installation project, and call us in Nottinghamshire today.


Finding energy efficient doors is difficult in the best of times. But when looking for large patio doors, your client will want to make sure that their structure optimizes energy utility. With polyamide thermal breaks in thicknesses of 20 to 25mm, you can create greater insulation for the added benefit of reduced thermal bridges and cold spots. These doors offer incredible U-value as low as 1.1 W/m2K.

Double glazing has been long been the industry standard. But we offer triple glazing or a maximum glazing thickness of 34mm, ensuring warmth all year long whether in Nottinghamshire or Withernsea.


Whether you choose these aluminium sliding doors for residential or commercial projects, there’s no doubt that you’ll be able to find them in the size that fits your needs. We offer ultra large sash sizes as big as 2500mm x 3000mm (LxH). Moreover, the max weight of these doors is 280 Kg, but with extra strong aluminium, you don’t need to worry about clunky thick frames. Instead, we offer 120 or 115mm frames for ultra sleek sightlines.

Choose 2, 3, 4 or 6 sashes when you supply our Cortizo aluminium patio doors. And when you do, you can order one or three rust resistant stainless steel rails for beautifully smooth gliding.


When making a large investment like this, clients want to know that their product will last for a long time to come. That’s why choosing the best materials for your build and refurbishment isn’t easy. But with these sliding patio doors, you can be sure that not only are you using aluminium, but you’re also installing a tested product. We choose quality products for your installation, making sure that you and your client are happy.

The Coritzo sliding patio doors we manufacture are rated against air permeability at Class 3, water tightness at Class 7A, and wind resistance at Class C5. In other words, the highest ratings achievable.

Cortizo Patio Doors Cost
aluminium bifold & patio doors


Use our quoting engine! You can input the dimensions of your project and find how many sashes or rails you may need. Get a thorough and accurate quote for your sliding doors.

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See some of our frequently asked questions on patio doors. If you would like more information, you can give us a call at our Nottinghamshire base so that we can help advise you on the best options for your next build.

What are the benefits of aluminium as opposed to stainless steel doors?

While steel doors are weather resistant, they are a great deal heavier than aluminium patio doors. Aluminium has all the longevity but with significantly less weight than steel, which can benefit customers looking to make sure that they are offering an accessible option to end users.

How much do these sliding doors cost?
Where can I buy from DRS?
What’s the maximum sash weight for patio doors?
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