Licensed C-20 Contractor

Commercial HVAC Repair, Installation & Maintenance in the Bay Area

Need commercial HVAC repair? Galaxy diagnoses heating, cooling, controls, and airflow issues for Bay Area businesses. We also install and maintain commercial systems to help keep your space comfortable. Explore our Bay Area commercial HVAC services on our dedicated commercial website.

Galaxy commercial HVAC team wearing hard hats and safety vests beside their service truck at a job site
Our commercial HVAC team on a job site.

Industries We Serve

Office Buildings
Restaurants & Cafes
Retail Stores
Warehouses & Industrial
Medical & Dental Offices
Gyms & Fitness Centers
Hotels & Hospitality
Multi-Family Residential

Commercial HVAC Solutions

From a single-unit office to a multi-building complex, we have the experience and equipment to handle your commercial HVAC needs.

Commercial Installation

New HVAC system installation for commercial spaces of any size. Rooftop units (RTUs), split systems, VRF/VRV multi-zone systems, and commercial heat pumps — properly sized and installed for your building load requirements.

  • Rooftop Units (RTUs)
  • Commercial Split Systems
  • VRF/VRV Multi-Zone Systems
  • Commercial Heat Pumps
  • Commercial Ductwork & Air Distribution

Commercial Repair

Troubleshooting and repair for commercial heating and cooling problems. We identify the cause of the issue before discussing the work needed to restore your system.

  • All Major Commercial Brands
  • Compressor & Refrigerant Work
  • Controls & Thermostat Repair
  • Economizer & Damper Repair
  • Electrical & Wiring Diagnostics

Preventive Maintenance

Scheduled maintenance programs designed to maximize equipment life, prevent unexpected failures, and keep your operating costs low. Customized service intervals based on your equipment and usage.

  • Quarterly & Semi-Annual Plans
  • Filter & Coil Cleaning
  • Refrigerant Level Checks
  • Belts, Bearings & Motor Inspection
  • Electrical Safety Checks
  • Detailed Service Reports

Commercial HVAC Repair: From Symptoms to Diagnosis

Uneven temperatures, weak airflow, a system that is not heating or cooling as expected, or controls that are not responding can disrupt a commercial space. These symptoms can have different causes, so a repair starts with checking the equipment rather than assuming a particular part has failed.

Our commercial repair work covers rooftop units and other commercial systems described above. Depending on the symptoms, our technicians can check thermostats and controls, electrical wiring, economizers and dampers, refrigerant, and compressor operation. We document what we find and discuss the repair work needed with you, whether you manage one space or multiple properties.

Tell us what equipment is affected, what the system is doing, and when the problem began. Call (925) 578-3379 or send a commercial inquiry to discuss repair, installation, or ongoing maintenance.

Why Bay Area Businesses Choose Galaxy

We understand that HVAC downtime affects your business. Our commercial team can diagnose equipment problems, explain repair options, and support installation and ongoing maintenance.

Licensed C-20 HVAC Contractor

Fully licensed by the California Contractors State License Board. All commercial work meets or exceeds Title 24 energy codes and local permit requirements.

Experienced Commercial Team

Our technicians have hands-on experience with commercial rooftop units, VRF systems, and building automation — not just residential equipment.

Detailed Documentation

We provide full service records, as-built documentation, and equipment reports — essential for property managers, landlords, and compliance requirements.

Serving 53+ Bay Area Cities

Based in Pleasant Hill, we serve businesses across Contra Costa, Alameda, Santa Clara, and Solano counties — from San Jose to Vallejo.

One Point of Contact

Dedicated account support for commercial clients. No call centers — reach the people who actually know your equipment and account history.

Commercial Repair Support

Commercial HVAC failures affect your business and your customers. We assess the equipment and explain the findings so you can make an informed repair decision.

Commercial HVAC Contractor Serving the San Francisco Bay Area

Galaxy Heating & Air Conditioning has been providing commercial HVAC services to Bay Area businesses for over 15 years. As a licensed C-20 HVAC contractor, we handle the full spectrum of commercial heating and cooling work — from replacing a single rooftop unit on a strip mall to designing and installing a multi-zone VRF system across a multi-story office building.

Commercial HVAC systems operate under far greater demands than residential equipment. Longer run times, higher occupancy loads, code compliance requirements, and the cost of business disruption all mean that commercial HVAC work requires a different level of expertise. Our technicians are trained on commercial equipment — rooftop units, heat recovery ventilators, building automation controls, and large-capacity refrigeration systems — not just the residential splits and furnaces that make up most of the industry's workload.

We work with property managers, facility directors, business owners, and general contractors throughout Contra Costa, Alameda, Santa Clara, and Solano counties. For emailed work orders, tenant scheduling, and owner approvals, see our HVAC service for property managers and landlords. Whether you need a scheduled maintenance program for a retail chain, HVAC repairs for a commercial property, or a full HVAC replacement for an office renovation, Galaxy has the licensing, insurance, and equipment to handle it professionally and on schedule.

Every commercial project we complete is documented — equipment specs, as-built drawings, service records, and warranty registration — because we know that property managers and building owners need records for compliance, lease renewals, and future service planning.

Commercial HVAC — Frequently Asked Questions

Common questions from Bay Area business owners and property managers.

What happens during a commercial HVAC repair visit?
We review the symptoms and inspect the relevant equipment to identify the cause. Depending on the issue, diagnostics may cover controls and thermostats, electrical components, airflow, dampers, refrigerant, or the compressor. We document the findings and discuss the repair work needed.
What types of commercial HVAC systems do you install?
We install rooftop units (RTUs), commercial split systems, VRF/VRV multi-zone systems, commercial heat pumps, packaged units, and ductless mini-split systems for commercial spaces. Equipment selection is based on a review of your building's commercial cooling and heating loads, occupancy, and existing equipment.
Do you offer preventive maintenance contracts for commercial buildings?
Yes. We offer quarterly, semi-annual, and annual commercial HVAC maintenance contracts tailored to your equipment and occupancy schedule. Contracts include filter changes, coil cleaning, refrigerant checks, electrical inspection, and detailed service reports for your property records.
Are you licensed for commercial HVAC work in California?
Yes. Galaxy holds a California CSLB C-20 HVAC license, which is required for all commercial heating and cooling work. We are fully bonded, insured, and registered with the California Department of Industrial Relations (DIR). All work meets or exceeds Title 24 energy code requirements.
What commercial HVAC brands do you service and install?
We work with all major commercial brands including Carrier, Trane, Lennox, Daikin, Mitsubishi, York, Rheem, Goodman, and American Standard. We carry parts for the most common commercial equipment and can source OEM parts for older or specialized units.
What areas of the Bay Area do you serve for commercial HVAC?
We serve commercial clients throughout the San Francisco Bay Area, including Contra Costa County (Pleasant Hill, Concord, Walnut Creek, Martinez, San Ramon), Alameda County (Oakland, Pleasanton, Livermore, Dublin, Fremont, Hayward, Berkeley), Santa Clara County (San Jose, Santa Clara, Sunnyvale, Palo Alto), and Solano County (Vallejo, Fairfield). We service 53+ cities across the region.

Commercial Brands We Work With

We install, service, and maintain all major commercial HVAC brands including Carrier, Trane, Lennox, Daikin, Mitsubishi, York, Rheem, Goodman, American Standard, and more.

CarrierTraneLennoxDaikinMitsubishiYorkRheemGoodmanAmerican Standard

Request Commercial HVAC Service

Tell us about the property and what you need. This is an inquiry, not a confirmed booking. Our team will follow up to discuss scope and scheduling.

Prefer to talk? Call (925) 578-3379.

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