Said It Here

Should I tear out old plaster or put drywall over it?

Tearing out old plaster creates a massive mess and a difficult remodeling process, while leaving it up adds extra thickness and alignment challenges when hanging new drywall. Dealing with this material also sparks worries about hidden issues like mold and the terrifyingly expensive prospect of extensive remediation.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Hanging thin sheetrock directly over the existing lath and plaster
  2. 2
    Mounting furring strips over the existing structure to attach new drywall
  3. 3
    Patching up damaged areas of the existing plaster rather than doing a full removal
  4. 4
    Using a box cutter and a laser level to cut out only the bottom 3 feet of drywall around the water intrusion area to check for active problems.

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/HomeImprovement2 people · September 2026

“This wall is lathe and plaster. I have some experience working with this, but when it comes to hanging new drywall I am unsure how to go about it.”source ↗

Ok_West4639 · r/HomeImprovement · 9 upvotes

“There's certainly nothing "wrong" with my house, but it's been a pain to remodel and deal with the mess of plaster and extra thickness, etc.”source ↗

SpaceAgeHamburger · r/HomeImprovement · 2 upvotes
r/homeowners1 person · September 2026

“Question is, should we rip out the drywall in the laundry room to check for signs of mold?”source ↗

“Do we need to do a more extensive mold remediation? That’s a terrifyingly expensive prospect….”source ↗

poopsmcbuttington · r/homeowners · 2 upvotes

Where this came up

People with this problem also raised