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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

HVAC Vista

HVAC VistaSaw a commercial or sales advertisement that left you longing to upgrade your present-day water heater to one of the new and improved tankless ones? Maybe you just need expert assistance with installing a new air conditioning and heating system for your brand new home construction. No matter what kind of HVAC project you are currently working on, we guarantee you Ace Contractors can help! We have been locally owned and run in the greater San Diego area for over 50 years and Vista clients make up some of our best to service. Call us for you HVAC needs today!

HVAC Contractor – Providing Top Notch Quality Service to Homes and Businesses

If you’re going back and forth on whether or not a new tankless water heater is a good option for you, we’d like to let you know that we offer free estimates. We can come to your property and assess your specific needs. That’s why more than 250,000 customers use us again and again. We promise you a quality experience each and every time.

  • 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


Your old furnace giving you the blues? Worry no more; Ace Contractors to the rescue! We have more than 50 years of HVAC experience under our belt plus we offer 24-hour emergency service for those late-night/ early morning dilemmas, too.  Don’t have an urgent problem? Well, keep our number on hand for routine maintenance as well as new installations! Contact us at 1-888-231-1086!

Air Conditioning

Have you been trying and trying to get your energy bill down but running the AC all day keeps it rising? Lucky for you, Ace Contractors has special offers for our Vista customers. Not only do we offer free estimates for the installation of a new unit but we can provide you with zoning for both comfort and savings! You can’t pass up this chance to see your energy bill go down! Our reps are available 24/7/365 just waiting for your call!

vista heating ventilation and cooling

San Marcos HVAC
Escondido air conditioning & heating repair

Diamond Ace Contractors