Why does my house make cracking noises at night?

Question

Is this just temperature changes or could it point to an underlying issue? My house seems noisier at night with cracking sounds from the walls or ceilings

Vasil · Answer

Cracking or popping noises at night are usually normal and caused by temperature changes. As the house cools down, materials like timber, metal pipes, floorboards, and plaster expand and contract, which can create cracking sounds.
Common sources include roof timbers, heating pipes cooling after use, floorboards, and walls settling. It’s usually harmless.
However, if the noises are very loud, frequent, or getting worse, it’s worth checking for loose floorboards, pipes not properly clipped, or signs of movement or damp. In rare cases, pests in lofts or walls can also cause noises.

Ken · Answer

This is most likely due to temperature changes (most common).  As evening arrives, the air cools down after the warmth of the day. Building materials expand when warm and contract as they cool, which can cause:
Timber framing or floorboards to make cracking or creaking noises.

Why does my house make cracking noises at night?

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