I've only had one experience that I would consider anywhere close to yours. In my case, a property surveyor did s survey on a property I was purchasing, and placed my property line on one side, incorrectly. Years later I put up a fence that was 6-12 inches on my side of that property line. About a year later the property next to me was sold and that survey for the other property put my fence on the neighbor's property. The neighbor took it upon themselves to remove my fence from what I though was my property. So I took the neighbor to small claims court.
Since our two property surveys were in directly conflict with each other, the judge ordered the county surveyor to perform a survey. Turned out, my survey was wrong so the neighbor had no liability for my fence that he removed from his property.
So I went to the company that did my survey to request they reimburse me for court costs, as well as the replacement cost of a replacement fence on my side of my "real" property line. As expected, they ignored me. That is, until they got the summons to appear in court. It never went to court. The survey business cut me a check for everything.
Depending on the financial size of the contractor that did the original construction, they'll pay your costs upon receipt of a summons to appear, or they'll go to court where I would expect them to lose and end up filing bankruptcy. But if they file bankruptcy, the best part of that is that you will most likely be the 2nd or 3rd in line to receive any compensation from disposition of assets. Doesn't mean you'll actually get any compensation. But they'll be out of business - for awhile at least.
