YOU might already have a long lists of jobs to tick off your to-do list this spring, but there’s one you shouldn’t forget about.
Experts at GFD Homes are warning that ignoring your windows this season could leave your home vulnerable to hidden damp and mould problems later in the year.
The right tricks will keep your windows mould-free[/caption]
There are a few steps to take to check your windows[/caption]
While many associate mould and moisture issues with colder months, spring is a key time for preventative maintenance.
According to Ian Richardson, homes expert and owner of GFD Homes, spring’s weather creates the perfect environment for moisture to infiltrate through damaged window seals and frames – setting up future mould outbreaks before homeowners even notice the warning signs.
Ian Richardson explains: “What we often see is that winter weather has already taken its toll on window frames and seals, but because the worst of the cold is over, homeowners tend to switch off from thinking about their windows until the following autumn.
“In reality, spring is when moisture can creep in through small gaps and cracks, creating the perfect conditions for damp patches and mould to form – especially as ventilation habits change with the seasons.”
Over the winter, repeated freezing and thawing cycles, combined with condensation from indoor heating, can cause sealant to shrink, frame joints to weaken, and hairline cracks to appear in frames or caulking.
In spring, when humidity levels rise, and homeowners open their windows less at night as outdoor pollen increases, trapped moisture inside homes struggles to escape, heightening the risk of damp-related issues.
“Gaps in sealant and frames might seem insignificant, but even small breaches allow water and humidity to settle into window recesses and the surrounding walls.
“With spring rainfall and fluctuating temperatures, these gaps act as entry points for moisture, and when that moisture isn’t ventilated away effectively, it contributes to mould spores thriving,” the pro adds.
Over time, persistent exposure to moisture can lead to mould on internal walls, window frames, and even furniture.
Worse still, if left untreated, damp can cause wooden frames to rot, compromise structural integrity, and result in significant repair costs.
How Much Can This Really Cost?
If moisture ingress isn’t addressed early, the long-term costs can be substantial.
Professional mould treatment inside the home can range from £300 to £1,000, depending on the extent of the infestation, and replacing rotting timber window frames could cost £500 to £1,200 per window, especially if structural damage has developed.
Additionally, poorly maintained seals and frames can worsen energy inefficiency year-round.
The good news is that preventing these issues can be simple, with GFD Homes recommending that homeowners carry out a comprehensive spring window check as part of their seasonal home maintenance routine.
Here are Ian Richardson’s expert steps to protect your home:
1. Inspect External Frames and Seals:
Walk around the exterior of your home and check all window frames and joints for visible cracks, shrinking or peeling sealant, and loose or deteriorating caulking.
Pay close attention to areas most exposed to winter winds and rain, such as south- or west-facing windows.
2. Check for Internal Damp Signs:
Inside the home, look for discolouration or peeling paint around window recesses, musty odours, and persistent condensation on the glass—all of which can indicate moisture is penetrating your windows.
3. Test for Draughts:
A simple incense stick test can help identify small, hidden draughts that are often missed during a basic inspection.
To do this, light an incense stick and slowly move it around the edges of the window frame and sealant areas. If the smoke wavers, is drawn inward or blows horizontally, it’s a clear sign that air is entering through a gap or crack.
This technique is particularly useful on mild spring days when larger draughts might not be as obvious but can still contribute to long-term moisture problems and energy loss if left unresolved.
4. Reseal Where Necessary:
For minor issues, resealing gaps with a high-quality weatherproof exterior caulk or replacing internal draught-proofing strips is a quick and cost-effective fix.
5. Clean Window Tracks and Vents:
Dirt and debris in window tracks or clogged trickle vents can exacerbate moisture issues by preventing proper drainage and ventilation.
A thorough clean can help windows function as intended and reduce the risk of internal condensation.
“We always advise that the time to catch moisture issues is before they become visible,” Ian says.
“By the time you spot black mould on window reveals or damp patches around sills, the damage is already underway.
“This spring window check takes less than an hour but could save homeowners hundreds or even thousands of pounds in repairs, not to mention the hassle of dealing with mould remediation.”
What is mould and how to get rid of it?
Mould is more likely to grow during the winter months.
Olivia Young, Product Development Scientist at Astonish revealed exactly why this is.
“Unfortunately, mould is a common problem many people face during winter. It thrives in conditions that are warm and damp, so your bathrooms are likely to be the most affected place.
“That said, during the colder months most rooms in your home could be vulnerable to mould growing.
“This occurs primarily from condensation that builds up on your windows when you’ve got your radiators on.
“If you think about it, when windows and doors are closed, there’s not much chance for the air to circulate and the moisture to make a swift exit.
“This build up is what can cause dreaded mould to make an appearance, especially in bathrooms, as it creates that warm and wet environment that is a breeding ground for mould.
“If left untreated, not only is it unsightly but it can also pose a serious risk to your health, so it’s really important you treat it.
“The key to tackle mould is to act fast.
“Try to come into as little contact with it as you can. So, grab your gloves, tie up your hair and get to work to remove any signs of mould as soon as you notice them.
“To keep mould at bay, there are some simple solutions you can introduce throughout home.
“The first is keep it ventilated. Yes, even in the cold winter months try to leave your bathroom window open for at least 10/15 minutes post shower or bath. This will get rid of any excess moisture quickly preventing mould gathering.
“If you’re having a repeat problem with mould in one particular area, it might be because the humidity levels are too high. You can get a dehumidifier that will help keep the levels low and reduce the risk of mould returning.
“The golden rule to remember when dealing with mould is the quicker you can treat it, the better. If you leave it, it will only get worse so never ignore it!
“To successfully get rid of mould every time, I recommend opting for the UK’s No 1 Mould & Mildew Remover, that effectively removes mould and mildew stains almost instantly, with no scrubbing necessary.”
