These so-called "Electricians" should be avoided, ...

These so-called "Electricians" should be avoided, I do not know where they have learned the skills of walking on unprotected hot film mats with dirty shoes, with stone and shit that want to puncture / destroy the mat. They come with lightning glue to attach a switch, which is detachable since it has the battery back that needs to be replaced once in the future. This was their solution proposal must insist that it was not a satisfactory solution (completely trying to ask so-called professionals to do the job properly). Unable to follow the order list they have, with equipment to be installed. but assemble completely other equipment that was not what was ordered. Incorrect assembly of switches that do not work. Heat foil that was incorrectly mounted, which makes it necessary to tear up the floor. All these errors in one and the same house. Do not want others to have the same experience, so I'm telling this as a warning and want others to let go of the same. mvh.