Cortizo 4700 Sliding Patio Doors

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 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, for double track frames we offer 120mm or for triple track frames 185mm 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.