As a family-run window company with over 30 years of experience across the East Midlands, we’ve seen our fair share of window problems. One of the most common issues homeowners face is cracks around window frames. While some cracks might seem minor at first, they can lead to more significant problems if left unchecked. Let’s explore why these cracks happen and what you can do about them.
Why Early Repair is Critical
Those small cracks around your window frame might seem harmless, but they can become serious issues if ignored. In our experience, what starts as a simple hairline crack can lead to significant problems with both your windows and your home’s overall condition.
Unaddressed cracks can severely impact your home’s energy efficiency, leading to higher heating bills as warm air escapes through these gaps. They also create perfect entry points for moisture, which can cause dampness and mould problems and even affect your home’s structural integrity over time. You might notice draughts, increased external noise, or condensation between panes.
Catching and repairing these problems early is always more cost-effective than waiting until they develop into major issues.
Common Causes of Window Frame Cracks
Settlement and Structural Issues
Here in the UK, especially with older properties, it’s normal for buildings to settle over time. Settling occurs when a building gradually sinks or shifts slightly in its position over time as the ground beneath it compacts and adjusts to the weight. This movement can cause vertical cracks and horizontal cracks around window frames.
Temperature Changes
The British weather often features stark temperature changes, which can cause materials to expand and contract. This movement can lead to hairline cracks around window frames. Modern windows, like our energy-efficient range, are designed to handle these temperature fluctuations better.
Moisture and Water Damage
Excess moisture is a window frame’s worst enemy. Water damage can come from heavy rain, leaking gutters, poor drainage, and condensation. Over time, excess moisture can cause significant damage, leading to cracks in both the window frame and the surrounding wall.
How to Identify Different Types of Cracks
Hairline Cracks
While hairline cracks are small and common, they still need attention. The good news is that hairline cracks (which are typically very thin and surface-level) can usually be handled through simple DIY repairs. These cracks often appear due to normal settling or seasonal changes, and catching them early makes them much easier to deal with.
Structural Cracks
More concerning cracks are those that are wider than 2mm, continue along walls, or show signs of growing larger over time. If you notice similar cracks around other openings in your home, like door frames, this could indicate a broader structural issue that needs professional attention.
DIY Repair Methods
For minor cracks, there are DIY solutions you can try:
Caulking
Caulk is a flexible sealant that comes in a tube and is perfect for sealing gaps and cracks around window frames.
Clean the area thoroughly before starting. For the neatest finish, apply masking tape along both sides of the crack to create clean, straight lines. Choose the right colour caulk to match your existing framing, apply carefully along the crack, and smooth with a wet finger or tool for a professional finish.
Allow the caulk to dry completely according to the manufacturer’s instructions – usually at least 24 hours – before painting over it if necessary.
Filler Solutions
Using filler is another effective way to repair cracks around window frames, particularly for slightly larger gaps that caulk alone won’t handle. Choose a filler appropriate for your situation, such as exterior grade for outside repairs or interior for inside. Many DIY stores offer specific window frame fillers designed to handle temperature changes and moisture.
Apply the filler in layers if the crack is deep – trying to fill it all at once can lead to shrinkage and poor adhesion. Press the filler firmly into the crack using a tool, slightly overfilling to allow for sanding.
Once the filler has dried completely (check the manufacturer’s recommended drying time), sand the area till it’s smooth using fine-grade sandpaper. Wear a face mask during sanding to avoid inhaling dust. Finally, if needed, paint over the repair to match your existing window frame colour.
When to Call a Professional
While DIY fixes work for minor issues, some situations require professional help. Consider expert assistance when you notice multiple cracks around framing, cracks wider than 2mm, signs of structural movement, persistent moisture problems, issues with window operation, or draughts affecting energy efficiency.
Prevention and Maintenance Tips
Regular Inspections
Check your windows regularly for new cracks developing, signs of moisture, changes in operation, damaged seals, and peeling paint.
Moisture Control
Ensure proper ventilation throughout your home and fix any leaks promptly. Maintain your guttering and address condensation issues in the first place to prevent future problems.
Proper Maintenance
Clean frames regularly and keep drainage channels clear. Repaint when needed and check seals to maintain optimal performance.
The Importance of Quality Windows
Many window frame issues can be prevented by installing high-quality windows in the first place. At Lifestyle Windows, we offer a comprehensive range of energy-efficient windows. Whether you’re looking to maintain the character of an older property or create a contemporary look, we have windows to suit every home and budget.
Our extensive collection includes traditional casement windows, elegant sliding sash windows, and practical tilt and turn designs. For period properties, our heritage flush sash windows and the Residence Collection offer authentic looks without compromising performance. Each style is available in a choice of materials – from low-maintenance uPVC and sleek aluminium to classic timber – allowing you to find the perfect match for your home.
All our windows can be fitted with either double or triple glazing for superior energy efficiency, and we also offer secondary glazing solutions for listed buildings or properties in conservation areas.
Whatever style you choose, our windows are built to handle temperature changes, prevent moisture issues, maintain structural integrity, and last decades.
When to Consider Window Replacement
Sometimes, especially with older properties, replacement is necessary. Consider replacement if:
- Cracks keep returning despite repairs
- Energy bills are rising due to poor window performance
- Windows are over 20 years old
- You’re seeing consistent moisture problems
Ready to Solve Your Window Problems?
While cracks around window frames are common, they shouldn’t be ignored. Regular maintenance and prompt attention to minor issues can prevent more significant problems. If you’re concerned about cracks around your windows or thinking about replacement, we’re here to help.
With over three decades of experience in the East Midlands, our team of local experts can assess your windows and provide honest, practical advice about repair or replacement options.
To speak to our team and view our range of windows, visit our showroom. You can find this at The Old Forge, West St, Ilkeston, DE7 5JW.
You can call us on 0800 783 6502, email us at contact@lifestylewindows.co.uk or use our online contact form.