As the largest city in Imperial Valley, El Centro, zip codes 92242 and 92243, includes established neighborhoods near Central Union High School and commercial areas around the Imperial Valley Mall. Many of these properties were built during the asbestos and lead-based paint boom, increasing the likelihood of asbestos, lead-based paint, or mold. With extreme summer heat and dust, indoor air quality can be impacted, making professional inspections essential for homes, schools, and businesses.