For over 20 years, Mark's Heating & Air has provided reliable HVAC services to El Cajon and San Diego County. Our certified technicians offer comprehensive heating and air conditioning repair, maintenance, and installation. We service all brands and provide 24/7 emergency repairs to ensure your home's comfort. Our services include AC tune-ups, furnace repair and replacement, duct cleaning, and indoor air quality solutions like air purifiers and humidifiers. We also offer HVAC service agreements for preventative maintenance. Trust our local team at 1284 El Rey Ave for honest, upfront pricing and quality workmanship on every job.

Blue Diamond Heating & Air provides expert HVAC services from its El Cajon location at 405 Vernon Way. The company specializes in comprehensive heating and cooling solutions, including precision air conditioning installation, repair, and maintenance. Their certified technicians also offer expert heating system services for furnaces and heat pumps. They perform detailed HVAC inspections, duct cleaning, and indoor air quality assessments to improve home comfort. For immediate needs, they provide 24/7 emergency repair services. Blue Diamond handles system replacements, smart thermostat installations, and offers financing options to ensure your El Cajon home remains at the perfect temperature year-round.

For El Cajon residents, Hurn Mechanical Heating & Cooling at 1568 Fayette St provides expert HVAC services. Our certified technicians specialize in precise heating and air conditioning installation, repair, and maintenance. We ensure your system's peak performance with comprehensive tune-ups and 24/7 emergency repairs. Trust us for accurate diagnostics, efficient ductwork services, and improving indoor air quality with advanced solutions. As a local, family-owned business, we are committed to your comfort with honest, upfront pricing and reliable service for every make and model. Contact Hurn Mechanical for all your climate control needs.