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Built-in airflow without opening windows.
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Continuous ventilation for healthier homes.
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Discreet venting, round-the-clock comfort.
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Helps reduce condensation and mould build-up.
Window Trickle Vents
Trickle vents in new windows offers improved ventilation.



What is a trickle vent and why is it so integral?
A trickle vent is a slim ventilation opening assimilated into the frame of a modern window or door. Its function is to let a balanced level of fresh air filter into a home and enable unwanted moist air to escape, without a window needing to be open.
The modern home is increasingly airtight, and trickle vents assist with the prevention of condensation, uplift air quality, and make certain that the ventilation requirements outlined in UK building regulations are met.

Must I have trickle vents in new windows?
Generally, the answer is yes. Adjustments to UK building regulations (Approved Document F) made it a legal requirement that trickle vents be included in various replacement and new window types. They offer crucial background ventilation, which is essential to counteract the progressively airtight nature of homes because of contemporary thermal efficiency criteria.
Trickle vents are particularly useful in the following locations:
- Bathrooms, bedrooms and kitchens.
- Properties with a shortage of natural ventilation.
- Homes that regularly suffer condensation, damp or mould.

The advantages of trickle vents
Although relatively small, trickle vents are instrumental to home comfort, safety and energy efficiency.
They ensure that a home receives constant airflow, extracting any moisture and pollutants, without any requirement to open your windows. This creates a fresher feeling at home, limits condensation and offers a defence against mould, especially in winter.
Trickle vents also aid with indoor temperature regulation, doing so by allowing the circulation of air without the loss of heat – they’re a cost-effective method of ventilation.

Can you close or adjust trickle vents?
You can as trickle vents have sliders you can use to control airflow. They can be fully or partially opened or closed shut based on the time of year and your preferences.
Such flexibility assures you of abiding background ventilation without sacrificing comfort or having to put up with draughtiness or external noise.

Will trickle vents compromise home security?
Definitely not. They’re inaccessible from the outside of a building because of being fixed into a window frame and extremely small. This includes when you keep the trickle vents open, eliminating any threat of a forced entry.
Rely on them for secure ventilation night and day, whether your windows are closed or otherwise.

Do trickle vents cause noise?
Trickle vents can attract fresh air into homes peacefully. In contrast to an open window, they will also restrict audible noise generated by cars and neighbours, perfect if you reside in a busy city, town or village.
You can get enhanced acoustic trickle vents if noise is a major issue and you need something to address it.

How is a window design affected by trickle vents?
A modern trickle vent is practically undetectable. It will also be colour-matched to a window frame and gets fixed into the top edge so that a window aesthetic is unspoilt.
Regardless of buying UPVC windows or aluminium windows, trickle vents are easily assimilated into different styles and finishes.

Can you retrospectively add trickle vents to windows?
You can have this done, but it may be inadvisable as the frame will need altering, which may have an adverse effect on window performance if carried out incorrectly.
A better idea is to insist on trickle vents when replacing existing windows so that performance standards are adhered to and they are sufficiently sealed.

Is it worth having trickle vents?
Absolutely! We all want a well-ventilated home that’s also energy efficient and regulation compliant and trickle vents will give you it.
They will help fend off condensation and moisture build-up, ventilating your space without threatening your security or hampering insulation.

Buy new windows with built-in trickle vents
It’s wise to insist on replacement windows containing integrated trickle vents in their frames if you’re in the market for new window designs. You will then be guaranteed sustained airflow, elevated comfort and building regulations compliance.
Have a conversation with Clearview to discuss and obtain a free quote for energy-efficient windows featuring trickle vents.

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