HVAC Repair in Ontario, CA91758
Arctic Air Heating & Cooling dispatches licensed, insured heating and air conditioning technicians toOntario and the 91758 ZIP code 24 hours a day, 7 days a week. Target response time in this service zone: 60-90 minutes.
If your high-efficiency heat pumps and ductless mini-splits has started short cycling, blowing warm air or making a noise it never used to make, you are not alone — Ontario generates some of the highest call volume we handle in California. Inland valleys hit extreme heat while coastal zones stay mild, so system sizing matters more here than raw capacity.
Talk to a live dispatcher in Ontario
Serving 91758 and San Bernardino County — no phone trees, no callback waiting.
- We test airflow and static pressure, not just refrigerant charge
- Combustion and carbon monoxide testing on every furnace call
- Digital condition report sent to you the same day
- Financing available on qualifying replacements
★★★★★4.8 average · 229 verified reviews
- Licensed & Insured Technicians
- Background-Checked Crews
- Upfront Flat-Rate Pricing
- Same-Day & Next-Day Service
- No Overtime Charges
- All Work Warrantied
The Ontario91758 calls we answer most often
If your system is doing any of the following, it is worth a diagnostic before the fault gets more expensive.
Skyrocketing utility bills with no change in usage
Breaker trips every time the system starts
One or two rooms that never reach the set temperature
Heat pump stuck blowing cold air in heating mode
Thermostat reading several degrees off from reality
Short cycling — on and off every few minutes
Heating and air conditioning service built around Ontario
Whether the complaint is weak airflow upstairs, a furnace that will not stay lit, or an outdoor unit that hums but never starts, the process is the same — a proper diagnostic, a written price, then the repair.
Homes in San Bernardino County tend to be a mix of older builds with original ductwork and newer infill construction, which means airflow problems show up very differently from one street to the next.
The busiest week of our year in Ontario is the first stretch of sustained may weather. Systems that idled all season fail in clusters.
Typical Ontario service pricing
| Service | Typical Range |
|---|---|
| Diagnostic / service call | $96 – $192 |
| Capacitor replacement | $230 – $538 |
| Contactor replacement | $243 – $576 |
| Refrigerant leak repair + recharge | $410 – $1,152 |
| Blower motor replacement | $576 – $1,216 |
| Compressor replacement | $1,792 – $3,712 |
| Hot surface igniter / flame sensor | $205 – $512 |
| Furnace control board | $486 – $1,088 |
| Condensate drain / float switch | $166 – $435 |
| Thermostat install (wired or smart) | $192 – $576 |
| Duct cleaning (whole home) | $486 – $1,152 |
| Full system replacement (installed) | $7,680 – $16,640 |
Market ranges reported for Ontario, CA and the wider Pacific region. Your flat-rate quote is confirmed on site before any work begins.
Services available in 91758
Residential and light commercial, all major brands, all hours.
Air Conditioning Repair in Ontario
Diagnosis and repair for central air conditioners, heat pumps in cooling mode, ductless mini-splits and packaged rooftop units.
Furnace Repair in Ontario
Gas, propane, oil and electric furnace troubleshooting and repair.
HVAC Installation & Replacement in Ontario
Full system replacement and new construction installs with a Manual J load calculation so the equipment is actually sized for your home.
Heat Pump Repair & Service in Ontario
Heat pump diagnosis and repair for both heating and cooling operation, including cold-climate units, defrost board failures, reversing valve problems, auxiliary heat strip faults and refrigerant charge issues.
24/7 Emergency HVAC Repair in Ontario
Around-the-clock response for no-heat in freezing weather, total AC failure during a heat wave, gas smells, carbon monoxide alarms, water flooding from the indoor unit and complete system shutdowns.
Air Duct Cleaning & Sealing in Ontario
Whole-home duct cleaning and aeroseal-style duct sealing to recover lost airflow, reduce dust and lower the load on your equipment.
HVAC Maintenance & Tune-Up in Ontario
Seasonal precision tune-ups that catch failing components before they strand you.
Commercial HVAC Service in Ontario
Service for light commercial and commercial properties including rooftop packaged units, VRF and VRV systems, split systems, make-up air units and building automation controls.
What happens when you call
No forms, no waiting for a callback window. One phone call starts the whole process.
- Step 1: Call the dispatch lineYou reach a live dispatcher, not a recording. They confirm your address, the symptom you are seeing and how urgent it is.
- Step 2: Get matched to the nearest licensed techDispatch routes your job to the closest available licensed technician who already carries the common parts for your equipment.
- Step 3: On-site diagnosis with a flat quoteThe tech tests the system, shows you what failed and gives you a written flat-rate price before any work starts.
- Step 4: Approved repair, same visit when possibleMost repairs are finished on the first visit. If a part has to be ordered you get a firm return window, not a maybe.
Servicing Ontario and San Bernardino County
Our 91758 coverage zone centres on Ontario and extends to the surrounding communities listed below. Every technician dispatched into this area is licensed, insured and background-checked, and every job carries a workmanship warranty.
What Ontario homeowners say
“AC died during a heat advisory. Dispatch was honest that it would be a few hours, then called me the moment a slot opened.”
— Angela W., verified Ontario customer
“They found a cracked heat exchanger that our previous company missed for two years. That alone was worth the call.”
— Sandra B., verified Ontario customer
Ontario91758 HVAC questions, answered
Do you service commercial and light commercial properties?
Yes. Around Ontario we handle rooftop packaged units, split systems, VRF/VRV installations and building automation faults for offices, retail, restaurants and multi-tenant buildings, including after-hours scheduling so you are not disrupting trade.
What does a new system cost in Ontario?
A complete residential replacement in the 91758 area generally lands between $6,000 and $13,000 installed, depending on capacity, efficiency rating and how much ductwork has to be modified. We always perform a Manual J load calculation first, because an oversized unit costs more to buy and runs worse than a correctly sized one.
Are your technicians licensed and insured?
Every technician dispatched into Ontario is licensed, insured and background-checked. We can provide proof of insurance on request before the visit if you would like it on file.
How much does an HVAC service call cost in 91758?
A diagnostic visit in Ontario typically runs $75 to $150, and that fee is usually applied toward the repair if you approve the work. Repair prices are quoted as a flat rate before we start, so the number you approve is the number you pay regardless of how long the job takes.
How often should I change my filter in 91758?
Monthly inspection and replacement every 60 to 90 days is the baseline. Homes in Ontario with pets, ongoing construction nearby, or a high-MERV filter in an undersized return should move to monthly changes. A loaded filter is the single most common cause of frozen coils and failed blower motors.
Can you give me a price over the phone?
We can give you realistic ranges — and this page lists the ones homeowners in Ontario see most often — but a firm price needs eyes on the equipment. Any company that quotes a final number without seeing the unit is usually quoting low to get through the door.
HVAC service near Ontario, CA
We also cover these California communities with the same 24/7 dispatch line.
Need HVAC help in Ontario 91758?
If you are not sure whether it is worth repairing, call (866) 548-3173 anyway. A flat-rate diagnostic tells you the real number, and you decide from there.
(866) 548-3173Answered 24 hours a day, 365 days a year