Wall cracks to fix before repainting
Hairline cracks, damp cracks and structural-looking cracks need different treatment before paint.
This guide is for first checks only. If there is shock, sparks, burning smell, active leakage near wiring, unstable structure or anything you are unsure about, stop and call a qualified professional.
Good painting starts before the paint tin opens. Crack type decides whether you need filler, mesh, waterproofing or expert inspection.
What you can check safely
- Check if the crack is hairline or wide enough to catch a fingernail.
- See if it grows after rain.
- Look for cracks near beams, windows or ceiling joints.
- Clean loose material before filling.
- Use the right filler and primer before repainting.
What not to do
- Do not fill damp cracks without fixing moisture.
- Do not ignore fast-growing cracks.
- Do not apply putty over loose paint.
When to call Sameway
Sameway painters can prepare cracks correctly and call in related repair support when damp or movement is involved.
Want us to check it?
Send a photo or short video on WhatsApp with your area in Trivandrum. We will reply with the safest next step and a clear quote when a visit is needed.
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