Commercial HVAC Maintenance

Protect your equipment — and your uptime.

Commercial HVAC maintenance agreements across the Inland Empire & LA County — scheduled inspections that prevent costly breakdowns, extend equipment life and keep energy bills predictable.

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 maintenance 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.

Quick answer

Commercial HVAC Maintenance from Alex Air & Heating Services LLC: Preventive maintenance agreements that protect your equipment. We serve Ontario, the Inland Empire & East LA County with same-day appointments, EPA-certified technicians and upfront, written pricing. Call 626-777-4822.

Commercial

Scheduled commercial maintenance prevents costly breakdowns, extends equipment life and keeps your energy bills predictable. We offer flexible maintenance agreements tailored to your facility and equipment.

What's included

Customized maintenance agreements
Scheduled multi-point inspections
Priority service for members
Extends equipment life & efficiency

Why choose Alex Air & Heating

EPA-Certified

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 EPA-certified 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.

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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 Maintenance FAQs

Scheduled inspections, cleaning and testing of your equipment, plus priority service and member discounts. We tailor the plan to your facility.

Most commercial systems benefit from service at least twice a year, though high-use equipment may need more frequent visits. We tailor the schedule to your facility.

Regular maintenance catches worn parts and small issues before they become expensive failures and downtime.

Yes — maintenance agreement members receive priority scheduling and member discounts.

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
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 maintenance?

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

Request Service Call 626-777-4822