Most people are aware that cracks in a wall or structure are a cause for concern, whether down to the cost to repair, insurance implications, or issues with re-mortgaging. But some structural movement is normal; movement occurs in very small amounts all the time in property and is usually un-noticeable.
So how do you know if it's a real problem?
Where do I start?
As with any inventory, make a note in your diary and take a photo the first time you see the crack, with a scale and reference point. Keep the photo so you can compare it in future (hence, the reference point). If you can, measure the width of the crack (as close as you can in mm) or
even use a 'crack width gauge' (usually cost <£10). If you already own the property, go back at regular intervals and re-measure (ultimately it's all the professionals would, admittedly with better and more detailed equipment), as ask yourself, "Is anything happening?"
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