Our favorite solution to cracks in plaster and drywall was Good-Bye Cracks, an elastic spray-on coating that flexes along with wall movement. After filling the gaps with patching compound, you spray on two coats, then repaint. However, it has been discontinued and will soon be gone for good. A 4-oz. can is $4. Stock up while you can!
You can always give us a call: (973) 449-5774 Remember Martin Painting is here to help with your next home project!