Why won't my VELUX window stay open?
If your VELUX window keeps dropping shut, will only stay open in certain positions or suddenly feels different to use, there may be a problem with the window mechanism, hinges or adjustment.
A roof window should be straightforward to open, position and close. If your VELUX window will no longer stay open, keeps falling back towards the closed position or behaves differently from how it used to, something may need attention.
The cause is not necessarily a major fault. Depending on the model and age of the window, the issue could relate to adjustment, hinges, friction, opening mechanisms or general wear. Identifying the cause properly is important before deciding whether the window needs maintenance, repair or replacement.
Why does my VELUX window keep closing?
VELUX has produced many different roof window models and operating systems over the years. Exactly how a window is designed to hold its position therefore depends on the particular product.
If a window previously stayed open normally and has gradually started closing by itself, that change is worth investigating.
Possible causes can include:
- wear within the hinges or opening mechanism
- incorrect adjustment
- components that have become loose or worn
- dirt or debris affecting movement
- the window sash no longer moving correctly
- age-related deterioration
- damage to part of the operating system
Do not try to force it to stay open
Avoid wedging the window open or forcing its mechanism. A roof window sash can be heavy, and an improvised solution could allow it to move unexpectedly or cause further damage.
Could the hinges be the problem?
The hinges are fundamental to the movement of a roof window. They allow the sash to open and rotate while keeping it correctly positioned within the frame.
Over many years of use, moving components can wear. Dirt and lack of maintenance can also affect how smoothly the window operates.
A hinge-related problem may be accompanied by other symptoms such as unusual resistance, uneven movement, noise when opening or a window that no longer seems to sit correctly when closed.
What if the VELUX window is also stiff to open?
A window that will not stay open and is also becoming difficult to operate gives us more information about the likely condition of the mechanism.
Stiffness can develop gradually, which means homeowners sometimes adapt to it without realising how much the operation has changed.
Window drops closed
The mechanism may no longer be supporting or controlling the sash in the way it previously did.
Window feels stiff
Resistance, wear, dirt, alignment or another mechanical issue may be affecting movement.
We have a separate guide covering stiff VELUX windows that are hard to open.
Can a VELUX window be adjusted?
Some operating issues can relate to adjustment, but it is important not to assume adjustment is always the answer.
If a component is worn, damaged or no longer functioning correctly, repeatedly adjusting other parts of the window may not solve the underlying problem.
The correct approach is to identify the VELUX model and inspect how the sash, frame, hinges and operating components are behaving together.
Can I lubricate the hinges myself?
General maintenance can be useful for suitable roof windows, but avoid spraying household lubricants indiscriminately into the hinges or mechanism.
Different components may require different maintenance, and excessive or unsuitable lubricant can attract dirt or reach areas where it is not helpful.
If you are unsure what maintenance your particular VELUX window requires, it is better to identify the model first and seek appropriate advice.
Check the VELUX window code
The product code helps identify the type, size and generation of your VELUX roof window. This can be extremely useful when investigating a fault or determining whether suitable replacement parts are available.
The identification plate is commonly found around the top of the sash and can normally be seen when the window is opened into a suitable position.
Our guide Where Is My VELUX Window Code? explains what to look for.
Can a VELUX window that won't stay open be repaired?
Often, yes. A problem with the operation of a roof window does not automatically mean that the whole window needs replacing.
Whether repair is appropriate depends on what has failed, the condition of the rest of the window and the availability of suitable components for that particular model.
Repair may make sense
The window is otherwise in good condition and the operating problem can be traced to a serviceable or replaceable component.
Replacement may make sense
The window is old and the operating fault is one of several problems involving glazing, seals, timber, leaks or general deterioration.
AR Windows provides specialist VELUX window repair and can advise whether repairing the existing window is sensible.
When does replacement become the better option?
There is no fixed age at which every VELUX window must be replaced. A well-maintained roof window may remain serviceable for many years, while another window may develop several age-related issues.
If the window will not stay open and there are also other significant problems, it is worth comparing the cost and benefit of continued repair with a modern replacement.
Replacement may be worth considering when the window also has:
- failed or misted glazing
- persistent draughts
- water ingress
- deteriorating timber
- damaged or worn seals
- multiple mechanical faults
- very old components that are difficult to source
You can read more about the expected lifespan of a roof window in How Long Do VELUX Windows Last?
Could regular maintenance prevent this?
Maintenance cannot prevent every mechanical failure, but routine inspection and servicing can help identify wear before a roof window becomes difficult or unreliable to operate.
This is particularly useful for properties with several roof windows or windows that have been installed for many years.
AR Windows provides VELUX maintenance as well as planned care through our Annual Service Contract.
What should I check before contacting AR Windows?
You do not need to dismantle anything. A few simple observations can help us understand what the window is doing.
If it is safe to do so, note:
- whether the window opens normally at first
- how far it opens before dropping back
- whether it stays open in any position
- whether movement feels stiff or unusually loose
- whether there are any unusual noises
- whether the window closes squarely
- the VELUX product code
- the approximate age of the window
A short video showing the problem can also be useful, provided it can be recorded safely.
Window keeps dropping shut?
Send AR Windows photographs of the window, its product code and, if possible, a short video showing what happens when you open it. We can use this information to help determine the next step.
Do not ignore a window that suddenly behaves differently
If a VELUX window has always operated normally and suddenly stops holding its position, becomes significantly looser or starts moving unpredictably, do not continue forcing it.
Roof window sashes can be substantial. Until the cause is understood, take care when opening the window and keep children away from a window that may move unexpectedly.
Final thoughts
A VELUX window that will not stay open is often a mechanical or operational issue rather than a problem with the roof itself. Depending on the age and condition of the window, maintenance or repair may be all that is required.
The important thing is to diagnose the cause rather than forcing the window or replacing parts at random. If the window is older and experiencing several problems at once, AR Windows can also help you compare repair with VELUX window replacement.
VELUX window opening FAQs
Why does my VELUX window keep closing by itself?
A VELUX window that previously stayed open but now closes by itself may have an issue involving its hinges, adjustment, friction or another part of the opening mechanism. The exact cause depends on the model and condition of the window.
Can a VELUX window that won't stay open be repaired?
Many operational faults can be repaired, particularly when the rest of the roof window remains in good condition. An inspection can determine the cause and whether suitable components are available.
Should I lubricate a VELUX window that keeps closing?
Do not assume lubrication will solve the problem. Using an unsuitable lubricant or applying it to the wrong component may not help. The cause of the fault should be identified first.
Should I wedge my VELUX window open?
No. Avoid improvised wedges or objects used to hold a faulty roof window open. The sash may move unexpectedly and the underlying problem will remain.
How do I know whether to repair or replace my VELUX window?
If the window is otherwise sound, repairing an operating fault may be sensible. If it also has failed glazing, leaks, deteriorating timber, worn seals or several age-related problems, replacement may offer better long-term value.
Get the problem checked before a small operating fault becomes a bigger one.
Send AR Windows photographs, the product code and details of how the window behaves. We can help determine whether maintenance, repair or replacement is the appropriate next step.