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 626-777-4822 Schedule service

Same-day appointments most days · Open Mon–Sun · 8:00 AM – 6:00 PM.

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

Same-day

Service available across the Inland Empire & LA County — call early and we'll do everything we can to get a tech out today.

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

Licensed & Insured

Honest, Upfront Pricing

Same-Day Service

Satisfaction Guaranteed

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.

Same-day appointments.

Call during business hours and we'll do everything we can to get a technician out the same day — with a real arrival window, not an all-day wait.

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 licensed technicians service all major HVAC brands, and our trucks are stocked to finish most repairs in a single visit.

How it works

Four steps. No surprises.

You call

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

We diagnose

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

You approve

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

We fix it

Most repairs are completed on-site the same visit. We test everything, clean up, and confirm your system is running right before we leave.

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 area

Serving the Inland Empire & LA County.

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.

Licensed & insured technicians
Honest, upfront pricing — no hidden fees
Same-day appointments often available

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.

Same-day appointments

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?

Same-day service, honest pricing, and licensed technicians who get it right the first time.

Request Service Call 626-777-4822