Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
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After
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Before
AfterHVAC Company in Ontario, CA
Dalton Heating & Air handles HVAC work across Ontario, CA with written pricing before any job starts and a full-year guarantee on every repair. Ontario’s mix of 1950s tract homes, 1990s subdivisions, and new builds near the 15 and 60 freeways means we see a wider spread of equipment ages and duct layouts than almost anywhere else in the Inland Empire. If your AC or furnace is acting up, call (361) 306-9515 and a real person answers, day or night.
Why Ontario Homes Are Different
Ontario sits where the inland heat stacks up against the San Gabriel foothills, and summer afternoons regularly push past 100 degrees. That means AC systems here run harder and longer than coastal units, and condensers caked with Santa Ana dust lose efficiency fast. Homes in older pockets like the neighborhoods around Euclid Avenue and Holt Boulevard often have original ductwork sized for evaporative coolers, not modern high-efficiency AC, so airflow problems show up as hot rooms and frozen coils. Newer subdivisions near Archibald and Haven have tighter building envelopes, which changes how we size heat pumps and furnaces. A system that works fine in a 1960s ranch off Vineyard won’t necessarily be right for a two-story built in 2005 off Grove. We account for that on every Ontario call, not with a generic one-size-fits-all approach.
Our Main Ontario Services
Most Ontario homeowners call us for two things: an AC that quit in the middle of a heat wave, or a furnace that won’t light on a cold January morning. Heat pump installations are close behind as older systems come up for replacement.
AC Repair in Ontario
When it’s 104 outside and the condenser won’t kick on, you need a technician who can diagnose fast and quote a written price before turning a single wrench. We stock capacitors, contactors, and motors on our trucks, and we’re factory-trained on Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. Ontario’s summer dust storms are a real thing, and we regularly find clogged condenser coils and failed run capacitors in every part of the city. AC Repair in Ontario is our most-booked service from May through October for that exact reason.
Heat Pump Installation in Ontario
Heat pumps make real sense in Ontario’s climate, where winters are mild enough that a properly sized unit handles both cooling and heating without a gas furnace backup in many homes. The trick is getting the load calculation right for your specific house, not the one down the street. We size systems based on square footage, insulation, window orientation, and duct condition, then install with a set date and a written fixed price. Heat Pump Installation in Ontario covers what to expect from start to finish, including rebates and financing paperwork.
Furnace Repair in Ontario
Ontario winters get cold enough at night that a dead furnace is a genuine problem, not an inconvenience. We see a lot of failed igniters, cracked heat exchangers in aging 1980s units, and flame sensors fouled by dust in homes near the rail yards and warehouse corridors. If the unit won’t fire or it’s short-cycling, we’ll tell you exactly what’s wrong and what it costs before we fix it. Furnace Repair in Ontario covers common failures, repair costs, and what’s covered under our written guarantee.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Ontario
Our technicians are factory-trained on nine residential brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We carry common repair parts for Rheem, York, and Daikin units on the truck, which keeps most Ontario repairs to a single visit. See our brands for the full list.
Pricing for HVAC Company in Ontario, CA
| Service | Typical range in Ontario |
|---|---|
| AC repair (minor: capacitor, contactor, relay) | $150 – $350 |
| AC repair (major: compressor, condenser fan motor, control board) | $350 – $650 |
| Furnace repair (minor: igniter, flame sensor, pressure switch) | $150 – $350 |
| Furnace repair (major: gas valve, blower motor, control board) | $350 – $700 |
| AC installation (full system, mid-efficiency) | $3,500 – $5,500 |
| AC installation (full system, high-efficiency) | $5,500 – $7,500 |
| Tune-up (single system) | $80 – $200 |
What pushes a job toward the higher end in Ontario is usually equipment age and access. A 25-year-old condenser with a failed compressor is a different conversation than a 6-year-old unit needing a capacitor, and cramped attic air handlers in older Ontario ranches take more labor than ground-level units in newer subdivisions. Whatever the number, it’s in writing before any work begins, and it does not change at the door.
Neighborhoods We Serve in Ontario
We run calls all over Ontario, from the older grid streets near downtown to the newer developments on the north and east sides. Response time across the city is typically same-day for AC and furnace repairs, and emergency calls are answered live around the clock.
- Ontario Ranch
- Creekside
- Archibald Ranch
- Edenglen
- Downtown Ontario
Service Area – Cities Near Ontario
Dalton Heating & Air serves homeowners throughout the Inland Empire from a dispatch office in the Riverside-San Bernardino area, with crews running daily routes through Ontario and the surrounding cities. We also work in Montclair, CA, Claremont, CA, Upland, PA, and Rancho Cucamonga, CA.
Serving Ontario, CA - Our Local Coverage Area
We’re based in the Ontario area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Ontario
Same-day for most AC and furnace repairs. If your system fails in extreme weather, call (361) 306-9515 and a live person will schedule the earliest available window. Emergency calls are answered 24/7.
Full system replacements and heat pump installations generally require a city permit in Ontario. We pull the permit, schedule the inspection, and handle the paperwork as part of the installation. Repairs and tune-ups typically do not require one.
Some Ontario HOAs restrict condenser placement or require specific screening. We check HOA requirements before quoting an installation so there are no surprises after the unit is in place. The written price accounts for any required setbacks or screening.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Ontario Customers Say
"Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B."Tech arrived in uniform right on time. AC wasn't cooling, found a failed capacitor, and replaced it in twenty minutes. The owner is a veteran and the company runs like it."
- Frank O."Blower motor died on the coldest night. They had the part on the truck and had us warm again the same day."
- Sandy G.