TOP 30 Air filtration in El Cajon, California

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Johnstone Supply is a leading HVAC/R wholesaler in El Cajon, California. Our location at 1903 Friendship Drive offers a wide range of heating, ventilation, air conditioning, and refrigeration products to meet the needs of contractors and technicians in the industry. With a reputation for quality products and exceptional customer service, Johnstone Supply is the go-to destination for all HVAC/R supplies in the area. Visit us today to experience our extensive inventory and knowledgeable staff.

Welcome to Maximum Comfort Heating & Air Conditioning, the #1 Air Conditioning Repair Company in East San Diego County. Conveniently located at 206 Greenfield Dr B, El Cajon, CA 92020, we are your trusted general contractor and store for all your HVAC needs. With over a decade of experience, our team of skilled technicians is committed to providing top-tier air conditioning services to keep you comfortable, even in the peak of California's summer heat. At Maximum Comfort, we understand the urgency of a malfunctioning air conditioner, especially under the blazing California sun. Our comprehensive services include AC repair, servicing, and replacement, ensuring your system is running efficiently and effectively. We pride ourselves on offering honest and reasonable pricing, never upselling unnecessary services, and always considering your budget.