Opening functions

How should your new windows open?

Fixed, guided, hung or fully reversible? Learn more about the advantages of different windows opening functions and find the one that suits your tastes and needs.

All opening functions

Fixed windows

Opening functions - what to consider?


When selecting window opening functions, there are several important factors to consider. Here are some of the most important ones.





The first thing to consider is the purpose of each window. Are you looking to increase the amount of natural light? Do you want to inprove the ventilation in a specific room or does the window need to be used as part of fire escape strategy? The purpose of the window will dictate the type of window opening function you should choose.


Ease of use


Another important factor to consider is the ease of use of the window. Will the window be opened and closed frequently? Is there any obstructions, such as worktops or taps, which would make some types of windows difficult to reach?




Safety is a critical consideration when selecting window opening functions, particularly for windows that are located at height. Choose a function that provides secure locking and can be specified with safety - lock mechanism or restrictors.


Cleaning and maintainance


Window cleaning is an important part of keeping your home well-maintained. Depending on where your windows are located (ground floor or upper floors) some types of window opening functions can really facilitate this practice, and also be more accessable for any maintainance work required.




Finally, the aesthetics of the window should also be considered. The opening function you choose should complement the design of the room and the overall style of your home. VELFAC windows retain a uniform appearance, whether they open or not, making it easy to combine different opening functions next to one another.



Uniform frame appearance

All VELFAC windows and doors have the same frame appearance,

whether they are fixed or opening, adding a sleek, flush and uniform finish to every home.


Get professional advice

Discuss your project with a VELFAC distributor

Tell us about your project by filling a form and we will get you in touch with one of the distributors in your area. VELFAC distributors offer a wide range of services to help you every step on the journey to your new windows and doors.


Discover VELFAC. Come and see our range of windows and doors

Windows and doors are a big investment, so it’s important that you see and experience their ‘ touch and feel’ before you take your decision.

Visit a local showroom

Many of our distributors have local showrooms where you can see our range of windows & doors and discover the options available to you. Fill our form adding details about your project, and we will get you in touch with one of the distributors in your area.


Certified & quality tested

All VELFAC products are thoroughly tested and quality assured. VELFAC meet - and exceed - all necessary standards.