Commercial HVAC Contractor Services
When your business depends on a comfortable, climate-controlled environment, you need a commercial HVAC contractor you can trust. Simmitri Inc. has been serving commercial properties since 1995 — and now we’re bringing that same commitment to quality, reliability, and personalized service to full-spectrum HVAC solutions. From air conditioning and heating repairs to complete system installations, our licensed technicians keep your building comfortable year-round so you can focus on what matters most: running your business.
CALL (408) 779-3333
Business Hours
Monday-Friday 9 AM - 5 PM
Saturday & Sunday Closed
Home - Commercial HVAC
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Commercial Air Conditioning Services
A reliable air conditioning system is essential for employee productivity, customer comfort, and protecting sensitive equipment. Simmitri provides comprehensive commercial air conditioning services for offices, retail spaces, warehouses, restaurants, and multi-tenant buildings.
AC Repairs
When your commercial AC system fails, downtime costs you money. Our technicians diagnose and repair all major brands and system types — including rooftop units (RTUs), split systems, VRF/VRV systems, and chilled water systems. We offer:
- 24/7 emergency repair response for critical cooling failures
- Refrigerant leak detection and recharging
- Compressor, condenser, and evaporator repairs
- Thermostat and control board diagnostics
- Ductwork leak sealing and repair
AC Maintenance
Preventive maintenance extends the life of your equipment, reduces energy costs, and prevents costly breakdowns. Our commercial AC maintenance plans include:
- Seasonal tune-ups (pre-summer and pre-winter)
- Filter replacement and coil cleaning
- Electrical connection inspections
- Refrigerant level checks
- Performance benchmarking and efficiency reporting
- Priority scheduling for plan members
AC Installation & Replacement
Whether you’re building out a new space or upgrading an aging system, we design and install high-efficiency commercial air conditioning systems tailored to your building’s size, layout, and usage. Our installation services include:
- Load calculation and system sizing
- Energy-efficient equipment selection (high-SEER rated units)
- Rooftop unit (RTU) installations
- Ductless mini-split systems for flexible zoning
- VRF/VRV system design and installation
- Full ductwork design and fabrication
- Integration with existing commercial solar and battery storage systems for maximum energy savings
Commercial Heating Services
Bay Area winters may be mild, but a reliable commercial heating system is still critical — especially for warehouses, healthcare facilities, restaurants, and multi-story office buildings. Simmitri provides complete heating solutions built for performance and energy efficiency.
Heating Repairs
Don’t let a heating failure disrupt your operations. We service and repair all types of commercial heating equipment:
- Furnaces — gas, electric, and oil-fired units
- Heat pumps — air-source and dual-fuel systems
- Boiler systems
- Rooftop heating units
- Ignition, pilot, and burner issues
- Heat exchanger inspections and repairs
- Blower motor and fan replacements
Heating Maintenance
Keep your heating systems running safely and efficiently with scheduled preventive maintenance:
- Annual furnace and heat pump inspections
- Burner and heat exchanger cleaning
- Carbon monoxide safety testing
- Thermostat calibration
- Air filter replacement
- System performance reports with efficiency recommendations
Installation & Replacement
Furnaces:
We install commercial-grade furnaces from top manufacturers, sized and configured for your building’s heating demands. Options include high-efficiency condensing furnaces that can significantly reduce your gas consumption.
Heat Pumps:
Heat pumps offer an energy-efficient alternative — providing both heating and cooling from a single system. We install and service:
- Air-source heat pumps
- Dual-fuel / hybrid systems (heat pump + gas furnace backup)
- High-efficiency variable-speed heat pump systems
Did you know? Pairing a commercial heat pump with a solar energy system can dramatically lower your operating costs and carbon footprint — aligning with California’s push toward building electrification.
- Our Process
Our Commercial HVAC Service Process
Step One: Consultation & Assessment
We evaluate your building, existing systems, and comfort goals.
Step Two: Custom Proposal
You receive a detailed scope of work, equipment recommendations, and transparent pricing.
Step Three: Professional Installation or Repair
Our licensed technicians complete the work on schedule with minimal disruption to your operations.
Step Four: Testing & Commissioning
We verify system performance, airflow balance, and thermostat accuracy before sign-off.
Step Five: Ongoing Support
Optional maintenance plans and priority service keep your systems running at peak efficiency.
Request a Service
Ready to get started? Whether you need a repair, a maintenance plan, or a brand-new commercial HVAC installation, Simmitri is here to help.
- Call us: (408) 779-3333
- Email: [email protected]
- Online: Contact Us
- Business Hours: Monday–Friday, 8 AM–5 PM
Describe your HVAC needs and we’ll respond within one business day with a consultation plan tailored to your property.
Industries & Properties We Serve
- Office buildings and corporate campuses
- Retail stores and shopping centers
- Restaurants and hospitality
- Warehouses and industrial facilities
- Healthcare and medical offices
- Schools and educational facilities
- Houses of worship and nonprofits
- Multi-tenant and mixed-use buildings
- Government and public works facilities
Already working with us on a commercial roofing or solar project? Bundle your HVAC services for streamlined project management and potential cost savings.