Signal Hygiene specializes in odor elimination, HVAC cleaning, crawl space repair & encapsulation, mold inspections & remediation and duct cleaning in Raleigh, North Carolina. Our Raleigh NC mold air test and odor removing services are ideal for residential homes, medical facilities, commercial buildings, apartment complexes, airplanes and cruise ships. Signal Hygiene offers a wide array of services for your home and business.