Winter Is Coming: 5 Electrical Fixes to Beat Condensation This Year
As temperatures drop and homes stay closed up for longer, condensation, damp and mould can quickly become a problem.
For electricians, this presents an opportunity to help customers tackle one of the causes of condensation: poor ventilation and excess moisture.
From upgrading bathroom extractor fans to looking at whole-home ventilation, here are five practical electrical and ventilation solutions worth considering this winter.
Why Does Condensation Get Worse in Winter?
Condensation forms when moisture in the air meets a colder surface. Without sufficient ventilation, moisture can accumulate and encourage mould growth, particularly in areas such as kitchens and bathrooms.
That’s why effective ventilation is so important. Rather than simply dealing with visible mould once it appears, electricians can help customers identify where ventilation could be improved and control moisture closer to its source.
1. Upgrade the Bathroom Extractor Fan
Bathrooms are one of the key areas where moisture is generated in the home. An effective bathroom extractor fan helps remove humid air before it has the chance to settle on windows, walls and ceilings.
When visiting a property, check whether the existing fan is performing effectively. Older or underperforming models may benefit from being replaced with modern timer, humidistat or continuous-running extractor fans.
Humidity-controlled options can be particularly useful because ventilation reacts to changing moisture levels rather than relying entirely on the homeowner switching the fan on.
BEW stocks a range of Vent-Axia ventilation solutions, including the Bathroom Fan with Timer.
2. Improve Kitchen Extraction
Bathrooms aren’t the only rooms producing moisture. Everyday activities such as boiling water, cooking and washing up can all increase humidity within a property.
Effective kitchen extraction helps remove moisture closer to its source rather than allowing humid air to travel into other parts of the home.
When working in a kitchen, check the condition and performance of the existing ventilation system. Older extractors may be due an upgrade, while dirty filters, restricted airflow or poorly arranged ducting can affect the performance of an otherwise suitable system.
It’s a relatively simple check that could help identify a ventilation problem before condensation becomes more noticeable during winter.
3. Consider Continuous Ventilation
If a property regularly experiences condensation, an intermittent extractor fan may not always address the wider ventilation issue.
This is where continuous ventilation can come into consideration.
Systems such as dMEV (Decentralised Mechanical Extract Ventilation) provide continuous low-level extraction, helping remove moisture and stale air over a longer period rather than only when a fan is manually operated.
For landlords and housing providers, monitoring can also play an important role. Aico’s SmartLINK Gateway and Environmental Sensors can provide information on conditions within the home, supporting a more proactive approach to damp and mould issues.
4. Look at Positive Input Ventilation
If condensation is appearing throughout a property rather than in one individual room, it may be worth looking at the bigger picture.
Positive Input Ventilation (PIV) systems introduce filtered air into a property and help encourage air movement throughout the home. PIV can therefore be useful when looking at condensation associated with poor ventilation and trapped moisture.
For electricians visiting homes where customers regularly complain about condensation on windows, high humidity or stale indoor air, assessing the property’s wider ventilation could help determine whether a more comprehensive solution is appropriate.
This also provides an opportunity to educate customers on how ventilation works as a complete system rather than viewing individual extractor fans in isolation.
5. Give Existing Ventilation a Health Check
Not every condensation problem requires a completely new ventilation system.
Blocked grilles, dirty fans, incorrect settings and poorly performing equipment can all reduce the effectiveness of existing ventilation.
A simple ventilation health check can therefore be a useful starting point.
When working at a property, consider checking:
- Is the extractor fan working effectively?
- Are grilles and vents clear?
- Does the existing system suit the property and room?
- Is ventilation being used as intended?
- Could an upgraded timer, humidistat or continuous-running fan provide better control?
Also keep Building Regulations Part F in mind when ventilation forms part of the work. Approved Document F provides the current guidance for meeting ventilation requirements in England, with Volume 1 covering dwellings.
This Mould and Damp Awareness Week, help your customers get ahead of the problem and prepare their homes for the colder months.
Training & Courses Available
Education is another important part of creating healthier homes. Aico Expert Training provides CPD-certified courses covering products, standards, legislation and best practice.
Its training options include Expert Installer, Expert Distributor, Expert Apprentice, Expert Carbon Monoxide, as well as connected-home training covering sensors, safety and solutions.
Together, BEW and Aico are helping make every home a healthier, safer place to live.
FAQs
Why do my windows get condensation every morning?
Condensation forms when warm, moisture-laden air meets a colder surface such as a window. During winter, homes tend to be closed up for longer, making effective ventilation particularly important.
Regular condensation on windows can be a useful warning sign that moisture is not being removed effectively. For electricians attending properties with repeated condensation problems, it may be worth assessing the wider ventilation strategy rather than simply replacing an individual fan. Your article already introduces continuous ventilation and Positive Input Ventilation (PIV) as potential approaches for properties experiencing persistent condensation.
Does an extractor fan stop mould?
Yes. An effective extractor fan helps remove moisture-laden air from bathrooms, kitchens and other humid areas before condensation can build up on colder surfaces. Reducing excess moisture and improving ventilation can therefore help create conditions that are less favourable for mould growth.
For electricians, persistent condensation may also be a sign that an existing fan is underperforming, incorrectly specified or affected by restricted ducting. Current UK electrical-industry content specifically highlights weak airflow, restricted ducting, blocked external vents and undersized fans as potential reasons a bathroom remains damp even when the fan is running.
What is the best bathroom fan for condensation?
There isn’t one extractor fan that is best for every bathroom. The appropriate solution depends on factors such as the room, how frequently it is used, the installation position, ducting and required airflow.
For homes experiencing regular condensation, electricians could consider timer, humidistat or continuous-running extractor fans so moisture control isn’t entirely dependent on somebody manually operating the fan. Your existing article makes this distinction, while current electrician-focused guidance also stresses that the fan needs to be capable of removing moisture effectively for the particular installation.
Should extractor fans run continuously?
Some ventilation systems are specifically designed to provide continuous low-level extraction rather than simply switching on and off with the bathroom light.
dMEV (Decentralised Mechanical Extract Ventilation) is one example. Your article explains that dMEV can provide low-level continuous extraction and increase airflow when required, making continuous ventilation worth considering in properties that experience recurring condensation.
For electricians, the important point is to assess the property and existing ventilation rather than assuming continuous operation is necessary in every installation.
Can poor ventilation cause damp?
Poor ventilation can contribute to condensation by allowing moisture generated through everyday activities such as showering, cooking, boiling water and drying clothes to remain within a property. Current UK industry guidance identifies persistent window condensation, mould spots, peeling finishes and rooms that remain steamy after showering as signs that moisture may not be clearing effectively.
Improving extraction at the source, checking existing ventilation and considering whole-property solutions such as dMEV or PIV can form part of an electrician’s approach to persistent condensation problems.
