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– Professionally Trained Hvac Technicians
– Residential & Commercial – 24 Hours / 7 Days
– Always Prompt, Honest, & Reliable


Over 250,000 Satisfied Clients
Read what customers have to say



  • Heating and Air Repair San Diego
  • Thermostats
  • Whole House Air Purification
  • Apartments & Condominiums
  • Scheduled Maintenance
  • Furnace Repair in San Diego
  • Service Calls – Fast Response
  • Duct Inspection & Sealing
  • Heat Pumps & Energy Savings
  • Humidifiers
  • Zoning for Savings & Comfort
  • Property Management Services
  • Garbage Disposals
  • Tankless Water Heaters
  • Sinks, Bathtubs & Toilets
  • Low Water Pressure
  • Earthquake Shut-off Valves
  • Backflow Prevention
  • Water Heaters
  • Shower Repair & Replacements
  • Water Softener Installation
  • Re-piping With Copper
  • Burst Pipes
  • Gas Lines


“I called them up at 10pm because we had a sudden burst pipe in our home. They were there within the hour, the owner assured us that it was going to be great and explained to us exactly what they were doing. They really went above and beyond our expectations. All of our stuff was put back together perfectly, and we were VERY happy with how it all turned out. Definitely our new favorite company.” -Mark G. San Diego, CA


“We needed our AC system repaired on a very hot day. They arrived promptly less than hour after I called them and fixed our home AC system without delay. Their prices were very reasonable and the technician that they sent was really friendly & knowledgeable. I fully recommend Ace Contractors!” -Albert H. San Diego, CA

El Cajon HVAC – Heating & Air Conditioning

HVAC El Cajon

El Cajon is lucky to have access to the remarkable services of Ace Contractors. It’s our pleasure to service you with quality heating, air conditioning, and plumbing assistance at the drop of a hat! No, seriously! If you find yourself in a pickle and badly need an expert you can trust, call 1-888-231-1086. You won’t regret making the choice.

HVAC Contractor – Quality Service Repair and Installation for Homes and Businesses

Consistently delivering superior quality HVAC services has been one of our top priorities since day #1. After 50 years in the business, we feel especially confident about our skill and ability to satisfy each and every one of our customers, new and old. That’s why we have a growing list of more than 250,000 customers around the greater San Diego area that have developed long-term relationships with Ace. You understand that you can count on us when the circumstances are urgent. Homes, retail stores, real estate properties, commercial and industrial settings—we serve them all and do not discriminate. Plus, we treat each and every customer with the utmost professionalism and respect, no matter if you are paying $50 or $5000. Call us to get the royal treatment from Ace today!

  • Emergency Service
  • Open 24 Hours
  • Same-Day Service
  • Residential & Commercial
  • Thermostat Upgrades (Wifi)
  • Light Commercial HVAC
  • Duct Cleaning
  • Exhaust Fans
  • Whole Home Re-Ductings
  • Preventative HVAC Maintenance Packages
  • Air Conditioning
  • Split Systems
  • Ductless Systems
  • Heating
  • HVAC Systems
  • Cooling Systems
  • Air Conditioner Installation
  • Central AC
  • AC Repair
  • Chillers
  • HVAC Controls
  • Equipment System Integrations
  • Energy Management
  • Furnace Installation & Repair
  • Pilot
  • Heat Pumps
  • Hybrid Systems
  • Wall Heater
  • Floor Heaters
  • Boilers
  • Air Purification
  • Air Filter Cleaning
  • Electronic Air Cleaners
  • UV Light Systems

Water Heater & Plumbing Emergency Service

The high quality plumbing, heating, and cooling services offered at Ace Contractors comprises more than 50 years of providing you and your family members with terrific assistance. If you want a new tankless water heater or simply need help installing a shower during a new home construction, we are the guys to call. No other technicians come when we do because we uplift our customers and their unique needs. We know that everyone has urgent matters every now and then so we make ourselves available 24/7 to attend to you. Call for top of the line emergency service today!

El Cajon City

hvac services el cajon

Encinitas, CA, Santee, CA, El Cajon, CA, La Jolla, CA, Del Mar, CA, Solana Beach, CA, Chula Vista, CA, Coronado, CA

San Diego HVAC
La Mesa air conditioning & heating repair

Diamond Ace Contractors
El Cajon