Keep your business comfortable and productive year-round with professional commercial HVAC services from Four Seasons Heating and Air Conditioning. From office buildings to retail spaces, restaurants to warehouses, we deliver reliable heating and cooling solutions that minimize downtime and maximize energy efficiency.
Or call us to get started today: (209) 366-3222

When your commercial HVAC system fails, it doesn't just affect comfort—it impacts your bottom line. Employee productivity drops, customers become uncomfortable, and equipment may be at risk. That's why businesses throughout Stockton and the Central Valley trust Four Seasons Heating and Air Conditioning for fast, reliable commercial HVAC service.
At Four Seasons Heating and Air Conditioning, we specialize in commercial HVAC systems that deliver consistent performance, superior energy efficiency, and long-term reliability. Whether you operate a small retail shop or a 50,000-square-foot warehouse, our experienced technicians have the expertise to install, repair, and maintain commercial heating and cooling systems of any size.
Our Commercial HVAC Services Include:
✓ Rooftop HVAC unit installation and replacement
✓ Commercial air conditioning repair and maintenance
✓ Commercial heating system service
✓ Packaged unit installation
✓ Split system commercial HVAC
✓ Ductwork design and installation for commercial spaces
✓ Thermostat and building automation controls
Commercial HVAC systems work harder than residential systems, running longer hours and handling greater loads. Here are the telltale signs that it's time to invest in a new commercial HVAC installation:
Your System is 15-20 Years Old
Commercial HVAC equipment has a typical lifespan of 15-20 years. If your system is approaching or past this age, replacement is more cost-effective than continuing repairs. Newer systems offer significantly better energy efficiency and reliability.
Skyrocketing Energy Costs
Are your utility bills climbing every month? Aging commercial HVAC systems lose efficiency over time, consuming more energy to maintain comfortable temperatures. A modern, high-efficiency system can reduce your energy costs by 20-40% while improving comfort.
Frequent Breakdowns and Repairs
If you're calling for commercial HVAC repairs multiple times per year, those costs add up quickly. When repair expenses exceed 50% of a new system's value, replacement is the smarter financial decision. Plus, unexpected breakdowns disrupt your business operations.
Uneven Temperature Control
Some areas too hot while others are freezing? Inconsistent temperatures frustrate employees and customers alike. This often indicates an undersized system, failing equipment, or inadequate ductwork—all issues best solved with a properly designed new installation.
Excessive Noise or Vibration
Loud banging, grinding, or rattling sounds indicate serious mechanical problems. While some issues can be repaired, persistent noise often signals that major components are failing. A new commercial HVAC system operates quietly and efficiently.
Uses Outdated R-22 Refrigerant
If your commercial AC system uses R-22 refrigerant (Freon), which has been phased out, refrigerant costs have become prohibitively expensive. Upgrading to a modern system with eco-friendly R-410A refrigerant is more economical and environmentally responsible.
Poor Indoor Air Quality
Excessive dust, humidity problems, or stale air can indicate your commercial HVAC system isn't properly ventilating or filtering your space. Poor indoor air quality affects employee health, productivity, and customer comfort. Modern systems offer superior air quality solutions.
Don't wait for your HVAC system to fail. Whether you need emergency repairs, routine maintenance, or a free estimate on a new installation, Four Seasons Heating and Air Conditioning is here to help.

Four Seasons Heating and Air Conditioning is Stockton's premier HVAC contractor, specializing in air conditioning repair, furnace installation, heating system maintenance, and emergency HVAC services throughout the Central Valley. Serving Stockton, Lodi, Manteca, Tracy, and surrounding areas with honest, affordable heating and cooling solutions. Licensed, insured, and locally trusted.
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