Consumer protection agency???? Not even close. Med...

Consumer protection agency???? Not even close. Mediation put some pressure on my HVAC contractor but nothing got resolved. Finally after trying to get contractor to finish job I gave permission to elevate to Investigation. The "Investigator" came and Interrogated me like I was the criminal not the victim in this $25,000 HVAC job gone bad. Top of the line Thermostats and system don't work as one would expect like turn on and off when temp reached. Dr told me to move out of house due to getting a lung infection from excessive insulation dust coming out of my brand new duct work. CSLB sent an "HVAC expert" who didn't listen when I answered him, talked to me like I was stupid and wrote a report that was so full of false information from what was witnessed by him and now I have no recourse because he was the "expert and said there were zero problems with the job. He brought no tools except cell phone and only took photos of what he wanted to paint a story that helps the contractor not the consumer. Where does the consumer turn for help when job is abandoned and not even permitted?