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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

La Mesa HVAC – Heating & Air Conditioning

HVAC La Mesa

Ace Contractors has looked after the HVAC and plumbing needs of La Mesa and most of Southern California for more than half a century. That’s over 18,250 days spent putting time and energy into your homes and businesses. If that’s not an indication that we have a personal investment in the community, then keep reading. Ace Contractors has a slew of admirable characteristics that make us stand out above the rest in the HVAC services industry.

HVAC Contractor – Highly Skilled and Professionally Trained

In the event you have a very serious and urgent dilemma of your heating and cooling system in your La Mesa residential, commercial, or industrial property, we are only a phone call away. You need repairs or replacements as soon as possible to return to daily operations as usual. A business that’s either too warm or freezing places huge obstacles in the way of making sales. Your customers could easily stray to other neighboring businesses that have properly functioning heat and air. Don’t let that happen. Take advantage of our 24-hour emergency guarantee. A professionally trained crew of technicians can be knocking at your door in minutes!

  • 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 Heaters and Other Plumbing Services

You might be not coping with general do-it-yourself project but include an unforeseen problem arise along with your plumbing. Low water pressure, a leaky water heater, and burst pipes can quickly turn bad. You miss out on enjoying life while worrying how to contain these problems before they get out of hand. Don’t allow another plumbing issue to steal the joy from your day. Simply call us at Ace Contractors and we will send one of our crew out to your La Mesa property to quickly diagnose and repair the problem in a professional manner.

There’s really no reason to entrust your HVAC and plumbing projects into less than capable hands. Call Ace and receive a free estimate on services today!

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La Mesa