Begin With a Visual Sweep
Start with a simple walk-around, both inside and outside your home. Look for any obvious signs of distress on and around your window and door frames. Telltale signs of water intrusion include new stains or discoloration on the walls, ceilings, or floors
adjacent to these openings. Paint that is bubbling, peeling, or cracking is another major red flag, indicating moisture is trapped underneath. Also, pay close attention to any musty or earthy smells, especially in enclosed spaces, as this often points to hidden dampness or the beginning of mould growth. This initial visual check helps you identify problem areas that require a closer look.
Probe for Wood Rot
For homes with wooden windows and doors, rot is a primary concern after a long wet season. Wood that has been persistently damp is a perfect breeding ground for fungi that cause decay. Visually, rotted wood might appear darker than the surrounding area, or it could be swollen and warped. However, paint can often hide the damage. To properly check, gently press a screwdriver or even your finger against the wood, paying special attention to corners, sills, and the bottom of frames where water collects. Healthy wood will feel firm. If the wood feels soft, spongy, or crumbles under light pressure, rot has set in. Catching it early might allow for a repair with epoxy, but extensive rot often requires replacement.
Inspect Seals and Caulking
The seals around your windows and doors are your home's first line of defence against water. Over time, exposure to the elements can cause caulking and weather-stripping to crack, shrink, or pull away from the frame, creating easy entry points for rainwater. Carefully examine the sealant around the entire perimeter of each window and door. For double-paned windows, a failed seal between the glass panes is a common issue. The most obvious sign of this is condensation, fog, or moisture trapped between the layers of glass that you can't wipe away. This not only obstructs your view but also means the window's insulating properties are compromised.
Check for Mould and Mildew
Where there is persistent moisture, mould and mildew are sure to follow. These fungi can pose health risks, triggering allergies and respiratory issues. Mildew often appears as a grey or white powdery substance that sits on the surface, while mould can be black, green, or other colours and may have a fuzzy or slimy texture. Mould is more destructive, as it can grow into materials like wood and drywall. Inspect window sills, corners of frames, and the surrounding walls for any suspicious spots or discolouration. Don't forget to check behind curtains or blinds where air circulation is poor. A persistent musty odour is also a strong indicator of mould, even if you can't see it.
Test Hardware and Functionality
Water damage isn't just about rot and mould; it can also affect how your windows and doors operate. Wood that has absorbed moisture tends to swell. This can cause windows and doors to stick, making them difficult to open and close. Test each window and door to ensure they move smoothly. Check that all locks, latches, and hinges are functioning correctly and are free of rust or corrosion. Misaligned frames or difficult-to-operate hardware are often signs that the frame has swollen or warped due to water absorption, indicating a potential leak nearby that needs to be addressed.
Examine Surrounding Walls and Floors
Water has a knack for travelling. A leak that starts at a window frame can seep into the wall cavity and travel downwards, causing damage far from the original entry point. After inspecting the windows and doors themselves, take a close look at the surrounding areas. Check the baseboards and flooring directly beneath them for any signs of swelling, warping, or staining. Gently press on the drywall around the frames. If it feels soft or squishy, it is a sign that water has gotten into the wall. Catching this type of hidden damage is crucial for preventing long-term structural issues and widespread mould growth.
