Planned Maintenance Agreement

Greater San Diego Air Conditioning provides comprehensive packages for planned maintenances, designed to optimize your system’s performance and efficiency. Just like you are unique and accomplish your objectives in your own way, your HVAC system is the same; needing personalized attention to meet its specific needs. GSDAC offers maintenance agreements customized to fit those needs.

Preventative Maintenance detect early signs of deterioration and potential system failure. Corrective actions can be taken in advance of costly repairs and service interruptions.

Air Filters have a significant effect on a building’s operating energy costs. They prevent contamination and assure the quality of air delivered to the occupants.

GSDAC provides our technician with everything they need to maintain your system such as lubricants, cleaning supplies or anything else they may need to prevent costly interruptions in service.

With a planned HVAC preventative maintenance agreement from GSDAC you get the peace of mind that comes from a fixed maintenance budget while we take care of the rest!

Inspection, Installation, and Repairs

Not sure where to start? With nearly over 35 years of HVAC experience GSDAC takes care of everything for you. We start every project with an in-depth inspection of your system to insure our complete understanding of its ins and outs. Next, we take care of everything, we gather all the required documents and order all the necessary parts and equipment to see the project to completion. Finally, a computerized selection process ensures that the most qualified technician available handles the installation and completion of the project.

We are experienced in (but not limited to) the installation and replacement of:

  • EMS & Controls
  • Split Systems
  • Water Source Heat Pumps
  • Boilers
  • Cooling Towers
  • Evaporative (Swamp) Coolers
  • Make-Up Air Units
  • Chilled Water Systems
  • Water Treatment
  • Process Cooling
  • Rooftop Package Units
  • Reciprocating, Centrifugal, & Screw Chillers
  • Ductwork
  • Air Handlers
  • Fans

Controls & EMS

GSDAC specializes in efficient, sustainable HVAC solutions to help you conserve natural resources and increase the life expectancy of your equipment. Through the utilization of Web-Based and/or Hosted control systems GSDAC generates greater efficiency from equipment. This increases performance and provides a platform for early detection of problems.

Our custom-designed control solutions provide you with a large number of useful features such as System Monitoring, HVAC Systems optimization, and improved control over the environmental and comfort conditions of your work space.

A few of the features offered by GSDAC control systems for are:

  • Building Automation
  • Temperature and Humidity Management
  • Energy & Water Conservation
  • Room pressurization
  • Historical trending and archiving of environmental data.
  • Chiller plant optimization
  • Frequency Drive Services
  • Heat recovery
  • Economizer installation
  • PH controllers
  • Air balance
  • Water balance
  • Fume hood controls and certification

Through Wire/Wireless Climate Control Systems GSDAC becomes the single-source of responsibility for all your HVAC systems, improving system reliability and reducing overall operating expenses.

GSDAC partners with most major control vendors to insure that we are up to date on all the latest equipment.


Design/fabrication/install of custom sheet metal ducting

Planned Service Agreement

  • System Testing and Safety Checks
  • Filter Changes
  • Mechanical Inspection
  • Cleaning
  • Lubrication
  • Priority Service
  • Frequency Drive Service
  • Retrofit: Planned and Emergency Replacement
  • Control Calibration & Supervision


We know firsthand that you can't prepare for everything. Even the most carefully laid plans sometimes fail.

When that happens it is good to know that you have a friend ready to get you back on your feet and in the comfort you deserve.

With Live Dispatching Services utilizing digitized customer information and after hours call center, you can be sure that no matter the time or date, Greater San Diego Air Conditioning has your back!

GSDAC maintains a fleet of service vehicles fully equipped to handle any HVAC emergency 24 hours a day. We are committed to assuring that interruptions are minimal and systems achieve their maximum efficiency.

Need help now!? Call us (619) 469-7818!

Services Available

GSDAC offers many many services much of which will be added here later

Design & Installation of new systems

(HVAC, Air ducts, Air Filtration)

Evaluation and Repair of existing systems

(HVAC, Air ducts, Air Filtration)

Systems Maintained

  • Centrifugal Chillers
  • Reciprocating Chillers
  • Steam and Heating Boilers
  • Circulating Pumps and Motors
  • Evaporative Condensers
  • Variable Air Volume Units
  • Water and Air Cooled Heat Pumps
  • "Oil Cooled" Vacuum Pumps
  • Rotary Vane Vacuum Pumps
  • Refrigerated Air Dryers
  • Exhaust & Supply Air Systems
  • Air Handling Units
  • Electric & Steam Humidifiers
  • Regenerative Dessicant Air Dryer

Property Types

We Provide HVAC Contracting Services For:

  • Commercial Office Space
  • Warehouses
  • Shopping malls
  • Municipal and public buildings
  • Museums and Libraries
  • Industrial buildings
  • HotelsData centers

Providing Peace of Mind with Efficient Comfort

About us

Serving San Diego County since 1983, Greater San Diego Air Conditioning Company, Inc. (GSDAC) offers mechanical engineering and HVAC services to buildings and management firms of all sizes.

Servicing buildings for several local property management firms, GSDAC provides personal yet professional customer support and timely, detailed reporting.

As one of the largest HVAC construction firms in the county, GSDAC bids on design/build and tenant improvement projects with quality work and lower costs.

Large data centers, medical labs, TV stations, and office buildings depend on Greater San Diego A/C for maximum uptime and efficiency.


If you are interested in becoming a member of the GSDAC family please forward you resume to:

As we focus on creating the best HVAC experience, we also strive to create a place where our staff not only grows but thrives. Here are a few of the perks that GSDAC offers:

Vacation & Paid Sick Leave

401k plan

Health Care

Paid Holiday leave

Field Technicians: Starter Pack

Fully Stocked Vehicle

Mobile Device and Accessories

Gas Card

Company Uniform

Green Initiative

GSDAC is committed to doing our part to protect the only Planet we have. Through the recovery of, and in-house recycling of HVAC equipment and refrigerant we are helping keep dangerous materials out of the environment.