Your HVAC system works hard every single day. Ontario HVAC keeps it running with expert repairs, right-sized replacements, and maintenance plans built for local homes.
A broken AC or furnace doesn't wait, and neither should your service company. With technicians based around the Ontario area, we provide fast, reliable service and hands-on care from experienced pros who know the climate and housing stock of our region.
From the first call to the final airflow check, our experienced team handles every heating and cooling problem your home or business can face.
Igniters, flame sensors, blowers, and boards fixed, most in one visit.
Dust, odors, and weak airflow traced back to the ductwork and fixed.
Year-round heating and cooling from one efficient system.
New furnaces installed with proper venting, gas work, and a full startup test.
Central air installs with the charge, airflow, and drainage verified.
Cold air back fast, with the common parts already on the truck.
One call for any breakdown, heating or cooling, with the fault found and fixed.
Coils cleaned, charge checked, safeties tested, twice a year.
Quiet, efficient ductless systems with clean line-set installs.
Complete heating and cooling systems designed around your home's actual load.
Honest repair-or-replace advice, and clean changeouts when it's time.
Heat pumps, furnaces, and boilers brought back to steady, even heat.
Open now·Talk with someone about your HVAC needs
Two systems do most of the work in a typical home, and they're the two we repair most. Here's what to expect when you call.
When your AC hums but won't cool, blows warm air, or keeps tripping the breaker, the fix is usually a single worn component. We test the system, find it, and replace it, often the same day. You get a clear price before any work starts, and if the system is old enough that replacement makes more sense, we'll show you both numbers.
A furnace that won't light on a cold night can't wait until morning. Most no-heat calls come down to a dirty flame sensor, a failed igniter, or a blower motor, and our trucks carry the common parts to fix them on the spot. Every visit includes a safety check of the burners and venting, and you'll know the price before we start.
HVAC trouble can appear without warning. If you're dealing with any of these problems, call us today for expert help.
A system pushing warm air in summer is the call we run most. Our trucks carry capacitors, contactors, and motors to restore cooling same-day.
AC repairA furnace that lights and then shuts down within seconds usually has a dirty flame sensor or a failing igniter, quick fixes for an experienced tech.
Furnace repairA system that runs constantly but never satisfies the thermostat is burning money. Seasonal maintenance restores the efficiency you paid for.
Maintenance & tune-upsWhen repair bills start stacking up, a modern high-efficiency system often costs less per month than keeping the old one alive.
System replacementDust settling everywhere within a day of cleaning, musty odors when the system kicks on, or allergy flare-ups indoors all point to the ductwork.
Air duct cleaningA garage office, a converted attic, or that one bedroom the ducts never reached, a ductless mini-split solves it without tearing open walls.
Mini-split installationA house at 90 degrees is an every-hour problem, so we treat it like one. Same-day appointments across Ontario, with evenings and weekends available.
We don't cut corners. Our team is experienced, background-checked, and fluent in every major brand, from a 20-year-old gas furnace to the newest inverter-driven heat pump.
If a $40 capacitor fixes it, that's what we'll tell you. We quote repair and replacement honestly, with real numbers, and let you choose, no scare tactics, no pressure.
A proper repair includes the details: static pressure check, capacitor test under load, combustion analysis on furnaces, and a clean condensate path that won't back up in August.
Ontario HVAC has proudly served this community and the surrounding CA towns for more than 15 years. We understand the local climate and the wear it causes because this is our home, not just our service area.
Our team goes beyond the quick patch. We know the failure patterns, duct issues, and code details common to properties around here. This local knowledge means faster diagnosis, fewer repeat visits, and systems that last.
Call a local HVAC expert. Upfront pricing, no obligation.
From the first call to the final airflow check, our method is built to solve the problem completely the first time.
Call (909) 310-0762 and we'll get you a price quote, often within a day. A few quick questions, cooling or heating, what the system is doing, how old it is, and we'll book a time that works for you.
We don't guess. The diagnostic covers the full system and turns into a straightforward recommendation with the cost spelled out up front.
We complete the approved work on the spot whenever possible: quality parts, code-compliant connections, and no shortcuts hidden behind the air handler.
Before we leave, the system is tested end to end and your questions are answered. Seasonal tune-up plans are available to protect the investment.
Upfront pricing · Same-day service available
Speed matters when the temperature is climbing or dropping. This is the sequence our team runs through, from the moment your call comes in to the moment your system is running again.
You call (909) 310-0762. A real person picks up, assesses your situation, and books the soonest available technician.
Often within hours, our fully equipped technician is on-site with the parts and tools required to handle the problem in your home or business.
This is where the problem actually gets solved. We repair what's repairable immediately, and when replacement is the honest answer, we handle removal, disposal, and a code-compliant install without drama.
We make sure temperatures stay steady and stand behind the work. This is also when we recommend a maintenance schedule to catch the next problem while it's still small, which matters most for equipment working through hard seasons.
"Another company quoted us a full system replacement. Ontario HVAC traced it to a failed blower motor and fixed it for a fraction of that quote. The tech said the rest of the system had years left in it. That kind of honesty is rare."
"From the estimate to the final walkthrough, the whole install was clear and professional. The crew wore shoe covers, put down drop cloths, hauled off the old equipment, and the final bill matched the quote exactly. The new system is so quiet we barely notice it running. Highly recommend."
"Years of dust, pet hair, and who knows what else came out of our ducts. After the cleaning, the airflow from every vent is noticeably stronger, and my wife's morning allergies have all but disappeared. They showed us before-and-after photos of everything they pulled out."
Good HVAC service comes down to doing the small things right. These are the commitments that earn Ontario HVAC repeat customers and referrals year after year.
We don't send a rookie with a gauge set and a hope. Each technician brings genuine field experience in diagnosis, safe gas and electrical work, and clean installation, the kind of depth that turns a service call into a lasting fix.
Effective doesn't have to mean oversold. We size systems honestly and install them to code with quality fittings and clean workmanship, so you get reliable comfort with minimal disruption to your household.
Our team focuses on keeping systems alive with inexpensive seasonal care. If you want to avoid the emergency replacement, our spring and fall maintenance visits handle the checks that actually extend equipment life. It's that simple. This focus on longevity is one reason we maintain a 4.8-star rating across 120+ reviews.
Wherever you are in our service area, we've got it covered, with fast repairs, quality installs, and maintenance plans reaching every community on our list.
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