Commercial HVAC Services
in San Diego
Professional Commercial HVAC Services in San Diego County
For over 30 years, Pacific Heating & Air Conditioning has been the trusted choice for businesses throughout San Diego. From retail stores to office buildings, warehouses, restaurants, and industrial facilities — we keep your commercial HVAC systems running reliably, safely, and efficiently.
Serving: San Diego, La Jolla, Chula Vista, El Cajon, La Mesa, Carlsbad, Santee, National City & surrounding areas.
30+ Years Experience • Licensed & Insured • 100% Satisfaction Guaranteed
Our Commercial HVAC Services
Commercial HVAC Repair
We repair all brands and models of rooftop units, split systems, packaged units, heat pumps, and more.
We fix:
- Electrical failures
- Refrigerant leaks
- Thermostat issues
- Blower motor failures
- Frozen coils
- Low airflow
- No cooling / no heating
HVAC Design & Installation
New building? System upgrade? Our team provides complete commercial HVAC system design, load calculations, airflow planning, and professional installation.
We ensure proper sizing, zoning, airflow, and energy efficiency.
Custom Metal Fabrication
We fabricate custom ductwork, plenums, transitions, and specialty sheet metal components tailored to your building.
Benefits:
- Better airflow
- Improved efficiency
- Perfect fit
- Long-lasting durability
HVAC Retrofits & System Upgrades
Upgrade your aging equipment to meet modern efficiency standards.
Retrofits include:
- High-efficiency unit upgrades
- Automation/thermostat upgrades
- Duct modifications
- Ventilation improvements
- Air balance corrections
- Energy-saving enhancements
Commercial Maintenance Plans
Prevent breakdowns and protect your investment with planned maintenance.
Plans include:
- Quarterly / Bi-annual / Annual service
- Full system inspections
- Filter replacements
- Safety checks
- Priority response
- Discounted repairs
Why Businesses Trust Pacific Heating & Air Conditioning
Experienced Commercial Technicians
Our team is trained in advanced diagnostics and repair for all commercial equipment types.
Rooftop Units (RTUs)
Heat Pumps
VAV & VRF Systems
Split & Packaged Systems
Ductless Systems
Commercial Controls
Quality & Reliability
We use top-rated equipment, follow strict installation standards, and respond quickly to minimize downtime.
Honest, Transparent Service
Clear quotes, detailed diagnostics, no hidden fees.
100% Satisfaction Guarantee
Your business comfort is our priority — we stand behind every job.
Our Service Area
We proudly serve commercial buildings in:
- San Diego
- La Jolla
- La Mesa
- El Cajon
- Santee
- Chula Vista
- National City
- Carlsbad
- Oceanside
- Encinitas
- Poway
- Rancho Bernardo
- Miramar
- Mission Valley
And Surrounding Areas
Get Reliable Commercial HVAC Service Today
Your business depends on reliable comfort. We’re here to help.