Air Conditioner Repair & Furnace Repair, Tune-Ups & Replacement! Seaside Air Conditioning and Heating is a premier Orange County HVAC Contractor! You have found the most honest, competitively priced, service-oriented, respectful, drug-free, "pleasure-to-do-business-with" air conditioning and heating company serving south Orange County and beyond. Your search has ended! Air Conditioning Repair and Tune-Up Do you need a pre-season air conditioner tune-up? Spring is here, and warmer temperatures will follow! Our VIP Energy Savings Agreement includes two visits per year to test and clean all components of your air conditioning and heating system to assure peak performance and high efficiency operation. Furnace Repair, Safety Check, and Tune-Up Concerned about your safety and economy?