Welcome to Oakwood, where our walls have history. Preserving original lime plaster is a labor of patience, but the results are vastly superior to modern gypsum board. Original plaster is a three coat system applied over wood lath (the scratch coat, the brown coat, and the finish coat). It acts as a natural sound barrier and handles the humidity of our North Carolina summers far better than paper faced drywall.

I use traditional hawk and trowel methods to inject structural adhesive behind the sagging plaster, then re anchor it to the laths with stainless steel washers. It is a slow, methodical process, but it preserves the hand troweled texture that you can never truly replicate with joint compound.

Dale is our resident artist for this, and he is absolutely right about the texture. However, you have to weigh the cost against the character. If you are renting the property out, repairing plaster systematically can get incredibly expensive.

Sometimes, if a wall is truly failing, the most practical solution is to salvage the original heart pine trim very carefully, hang high quality drywall, and reinstall the trim to keep that historic look without the constant maintenance.

I spent three months repairing the plaster ceiling in my front parlor and I still have nightmares about joint compound falling into my eyes. There are no shortcuts. If you try to just tape over those cracks with standard fiberglass mesh and cheap mud, they will open right back up the moment our clay soil shifts in the August heat.

You have to scrape out the old cracks into a V shape, vacuum out the dust, wet the old plaster so it does not suck the moisture out of your repair compound, and then build it up in thin layers. It is absolute purgatory.

If you are hiring this out, make sure your contractor carries active general liability insurance and ask to see the certificate. If they damage any active plumbing or wiring behind those lath walls while scraping, a standard homeowner policy may have strict limitations on coverage if the contractor was unlicensed or uninsured. Document the condition of the walls with clear photos before any work begins.

If you hire a real plaster specialist, expect to pay eighty to one hundred and twenty dollars an hour. Most drywall crews will tell you they can do it, but they will just slap mud on it and leave.

Here is the process if you hire a pro. One, they stabilize the keys. Two, they mesh the cracks. Three, they use a setting compound like Durabond, not ready mixed mud. If they do not follow those steps, show them the door.

I had to make this choice on a duplex near Southeast Raleigh. The plaster was crumbling behind the baseboards. We ended up keeping the plaster on the front facing public rooms to keep the historic charm, but we transitioned to drywall in the kitchen and bath where moisture is a constant issue. It kept our tenants safe and kept our maintenance budget from spiraling.

Thank you all. Dale, do you source your lime mortar locally, or is that something that has to be shipped in? Back north we had to order specialty bags from preservation sources.

I mix my own using hydrated lime and local coarse sand, which gives it the correct period matching color and flexibility. Modern bag mixes from the big home improvement stores on Capital Boulevard are far too hard and will actually crack the surrounding historic plaster when the house settles.

Really appreciate all the detail here. Going to try a couple of test patches before hiring anyone.