There are two kinds of cracks in old lath and plaster walls. Both can be repaired, but one is a much more serious problem. By Ronda Kaysen Q: Our Gramercy co-op was built in 1929. The thick plaster ...

Foundation problems are probably the biggest structural concern for any homeowner or potential buyer, so it’s no surprise that we tend to get a little panicky about seeing cracks in basement walls.

My husband and I recently purchased our first apartment in a prewar building. There were minor cracks in the plaster walls when we purchased the apartment, but the inspector didn’t seem to think they ...

Q. I am refurbishing a 130-plus-year-old summer house. The half-inch Sheetrock ceilings have cracked or buckled along the seams in several places, most notably on a 20-by-40-foot kitchen that used to ...