Looking for Cortizo sliding doors? Glideline manufactures and enhances Cortizo aluminium sliding doors for UK homes, weather, drainage, hardware, installation and long-term performance.
Both can meet current Building Regulations for thermal performance and security. But the way they work, the sizes they support and the way they seal against the weather are fundamentally different.
In late 2025, we launched the GPD80. Our first dedicated pivot door system, designed and engineered by Glideline. Read about the design and construction of this outstanding pivot door.
The GS25 is our flagship bonded sliding door. Designed for new build projects where the brief demands maximum glass, minimum frame and no compromise on performance, it is the door you specify when nothing else will do.
Our latest Aspect Sliding Door changes that assumption. We are proud to have designed the UK's slimmest beaded aluminium sliding door, and it arrives with an outstanding 15mm interlock
A Complete Guide to Types, Materials and what to look for when considering a new front door.
A pivot door is a door that rotates on a vertical axis using a pivot mechanism mounted at the top and bottom of the panel. But there's more to it.
Slimline sliding doors are defined by one key principle: maximum glass, minimal visible aluminium. But not every door marketed as “slim” truly delivers meaningful reductions in sightlines.
January 2026, Glideline have made a substantial investment in a New SBZ 145 CNC-Saw from Elumatec to help streamline procu
Two of our GS20 slimline sliding doors, manufactured by us, transform both an existing rear elevation and a new side extension on a detached family home.
When it comes to steel look and heritage sliding and bifold doors, many homeowners are unaware of the compromises involved in trying to achieve the look.
Frameless windows are fast becoming the go-to option for homeowners who want more light, cleaner design lines, and a seamless finish. Find out why
Sliding doors are a popular and architecturally desirable glazing solution. They’re ideal for modern homes extensions and high-end renovations.
Find out how we transformed this family home with better flow internally, substantially improved looks externally with security, energy efficient and interior comfort.
Cortizo as a brand name is enjoying phenomenal success in the UK since it was first introduced around 2017. Today Cortizo has a strong reputation for sliding doors, bifold doors, windows and the more demanding architectural glazing sector.