Alex Air & Heating Services LLC logoAlex Air & HeatingServices LLC
Commercial HVAC Repair

Down system? We'll minimize the downtime.

Fast commercial HVAC repair across the Inland Empire & LA County — rooftop units, split systems and light commercial equipment serviced with the responsiveness your business depends on.

Call 626-777-4822Schedule service

Appointments based on current availability · Open Mon–Sun · 8:00 AM – 6:00 PM.

Alex Air & Heating technician performing commercial hvac repair in the Inland Empire & LA County

Availability

Service is available across the Inland Empire and East LA County. Call during business hours to confirm the next open appointment.

Quick answer

Commercial HVAC Repair from Alex Air & Heating Services LLC: Minimize downtime with fast commercial HVAC repair. We serve Ontario, the Inland Empire & East LA County with appointments based on availability, an EPA 608-certified technician and upfront, written pricing. Call 626-777-4822 during business hours to confirm availability.

Commercial

When your commercial HVAC goes down, every hour costs you. Our technicians service rooftop units, split systems and light commercial equipment with the responsiveness your business depends on — getting your space comfortable for staff and customers fast.

What's included

  • Rooftop & split system repair
  • Fast-response to minimize downtime
  • Light commercial expertise
  • Maintenance agreements available

Why choose Alex Air & Heating

EPA-Certified
Written Pricing
Availability Confirmed by Phone
Documented Service Scope

Backed by our warranty

Labor warranty 3 Years · Parts warranty 5 Years · Compressor warranty 7 Years. No hidden fees — you approve the price before we begin.

Why choose Alex Air & Heating

What you actually get when you call us.

Appointments based on availability.

Call during business hours to confirm the next available appointment. Timing depends on the current schedule.

Upfront pricing, no surprises.

We diagnose, quote, and explain — then you decide. You approve the price before any work begins, with no hidden fees at the end.

Every make & model.

Our EPA-certified technicians evaluate major HVAC system types and explain any parts or follow-up work the documented diagnosis requires.

How it works

Four steps. No surprises.

01

You call

Reach us at 626-777-4822. We'll book your appointment and share a real arrival window — not an all-day block.

02

We diagnose

A full system inspection — refrigerant, electrical, airflow and controls — to find the real root cause, not just the symptom.

03

You approve

You get an upfront, flat price before any work starts. Repair or replace? We give you the honest numbers.

04

We complete the approved scope

We perform the work you authorize, test the relevant operation, clean the work area, and explain any documented follow-up.

Related services

Round out your home comfort.

Popular services and plans homeowners pair with this one.

Commercial HVAC Installation

Right-sized commercial HVAC installation for your business.

Learn more

Commercial HVAC Maintenance

Preventive maintenance agreements that protect your equipment.

Learn more

Maintenance Membership

Just $199 per system per year — an annual tune-up, 10% off all repairs, no overtime fees and free filters.

See membership perks
Good to know

Commercial HVAC Repair FAQs

Yes. We repair and maintain commercial rooftop units and light commercial split systems across our service area.

We prioritize commercial calls to minimize downtime and do everything we can to get a technician out the same day.

Yes — scheduled maintenance agreements help prevent breakdowns and keep priority service on call for your business.

Offices, retail, restaurants, medical and light industrial spaces, among others.

Service information maintained by Yuan Pan, Owner & Lead HVAC Technician. EPA 608 Universal Certification.

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Service area

Serving the Inland Empire & LA County.

Service-area HVAC business serving the Inland Empire, Los Angeles County & surrounding areas

Check your address

Do we cover your ZIP?

Not sure if you're in our area? Enter your ZIP above — we cover most of the Inland Empire & LA County.

  • EPA-certified technicians
  • Honest, upfront pricing — no hidden fees
  • Appointment availability confirmed by phone

Prefer to talk? Call 626-777-4822

Where we workDon't see your city? Just ask.

19 cities across 4 regions

OntarioRancho CucamongaFontanaUplandMontclairRialtoRedlandsSan BernardinoRiversideCoronaEastvaleJurupa ValleyPomonaClaremontWalnutDiamond BarRowland HeightsChinoChino Hills

Locally owned & operated

An independent local team serving the Inland Empire & LA County.

Clear scheduling

Call during business hours and we'll do everything we can to dispatch a tech the same day.

Fast response times

We answer fast and show up when we say we will.

Need commercial hvac repair?

Written pricing, EPA 608-certified expertise, and appointment timing confirmed before you book.

Request Service Call 626-777-4822
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