Best HVAC Experts in Gilroy, CA LJ Mechanical Heating & Cooling Inc. is a best HVAC service provider based in Gilroy, California, specializing in air conditioning, heating, and ventilation solutions. With over 20 years of experience, our dedicated team ensures that every system is installed, repaired, and maintained with precision. We prioritize customer satisfaction, energy efficiency, and long-term reliability, delivering comfort to both residential and commercial properties. Let us help you create a perfect indoor environment year-round