Most small cracks in drywall or plaster walls are not serious and are caused by seasonal expansion and contraction of the wood framing in your house over time. They’re often found at the corners of window and door frames, and can be patched using spackling or joint compound.
Larger cracks in your walls, however, can indicate structural or foundation problems. If the cracks in your walls exhibit these characteristics:
- The crack has a 3/16” or wider gap.
- One side of the wall is higher than the other.
- Your doors no longer close in the frame.
You may have a structural problem and should have your house examined by a foundation specialist.
Watch this video to find out more.
- How to Repair Cracks in Plaster Walls (video)
- How to Fill Cracks in Drywall (video)
- Foundation Cracks (video)
- Foundation Problems (article)