Let your home builder know that you want you own contractor to this work, or the very least, have major interaction between you and the builders systems contractor. No offense to electricians, you do fine work, for but the majority of electricians this not their forte. Most home builders will respect the home owners wishes. Please understand there are no building code standards for this industry, therefore no body inspects their work. The only way you can control the quality of installation is to be able to control the security/communications contractor. The security/communicaton contractor is still required to report to the home builder, as they are responsible for the over all project. After your home is built and you are living in it, do you want to discover what is missing, installed in the wrong place or not working to your liking. Your security/communcation contractor will most likely be one of the last contractors to leave your home. The contractor that is providing you this technology must be treated with the same respect and the same professional manner that the other licensed trades are.