Where we can find the companies-builders? in Real Estate in Costa Rica Posted May 14, 2011 · Report reply 1) ELECTRICAL, ELECTRICAL, ELECTRICAL. This is a nightmare in this country. 2) PLUMBING, PLUMBING, PLUMBING. The second nightmare. Often sewage empties to the street. No stink pipes No P traps. Often inadequate septic system. Better know your stuff when you go this route. There are many other difficulties. One house we looked at had a lot of mould around the exterior walls. Others needed to be completely rewired. Raw open wires in the bathroom and kitchen NB. Over 1/3 of all house fires in CR are electricallyu related.