🌡️ Serving Ontario — same-day HVAC service available. Call (818) 294-7515 now.
📞 (818) 294-7515 24/7 Emergency · Free Estimates CA Lic. #1087597 · C-20 HVAC · Class B
📍 Serving Ontario, San Bernardino County

HVAC Repair & Service in Ontario, CA

Ontario is the Inland Empire's logistics capital — home to Ontario International Airport and one of the largest warehouse and distribution networks in the country. But beyond the industrial corridor, ...

Ontario is the Inland Empire's logistics capital — home to Ontario International Airport and one of the largest warehouse and distribution networks in the country. But beyond the industrial corridor, Ontario has substantial residential neighborhoods that have been here for generations, from the historic Euclid Avenue corridor to newer master-planned communities near the foothills. We serve the residential and light commercial market throughout Ontario.

The Climate Challenge in Ontario

Why Ontario Residents Count on ECO

Ontario's position in the Chino Valley puts it directly in the path of Inland Empire heat events. Summer temperatures regularly exceed 100°F, and the combination of industrial land use and concrete coverage creates one of the more significant urban heat islands in the region. Residential AC is not optional here — it's a necessity from May through October.

The Most Common Issue We See in Ontario

Older neighborhoods around Historic Euclid and Downtown Ontario have housing stock that predates modern HVAC by decades. Many homeowners are working with equipment that was added to homes not originally designed for it — sometimes with ductwork compromises and sizing issues that have never been properly addressed. We do the forensic work to understand what the house actually needs.

Full HVAC Services in Ontario

  • AC Repair — same-day diagnosis on all brands. Not cooling? Noisy? Won't start? We fix it fast.
  • Heating Repair — gas furnace, heat pump, wall heater. All systems, all brands, year-round.
  • AC Installation — proper load calculation, high-efficiency SEER2, full permits, SCE & SoCalGas rebate processing.
  • Heating Installation — new furnaces, heat pumps, dual-fuel systems. Sized right, permitted, warrantied.
  • HVAC Maintenance — annual tune-ups that prevent breakdowns and extend equipment life in San Bernardino County's demanding climate.
  • 24/7 Emergency Service — live answer around the clock. No voicemail, no call center. We pick up.
  • Commercial & Multifamily — apartment complexes, HOAs, property managers. Full C-20 + Class B capacity.

"If I had a brother, I would want him to be like Eli. He is trustworthy, fair, and does excellent work. He has been servicing my HVAC system for years and I couldn't recommend him more highly."

★★★★★
ECO Customer
Google Review · 5 Stars

Also serving near Ontario:

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PHOTO: ECO Technician in Ontario
ECO tech servicing an HVAC unit at a Ontario home. Professional, uniformed, confident.

Schedule HVAC Service in Ontario

Same-day service available. We call back within 30 minutes.

🔒 We respond within 30 minutes during business hours. 24/7 for emergencies.

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Rebate opportunity in Ontario: Homes in Southern California Edison (SCE) & SoCalGas territory qualify for multiple overlapping incentive programs. A qualifying heat pump installation can yield $1,000–$3,000+ in combined rebates. Ask us what you qualify for when you call. Learn more →

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What makes this market different: the mix of older residential neighborhoods and newer tract development means equipment age and condition varies wildly — proper assessment before any recommendation is non-negotiable. We've seen it across San Bernardino County and the IE. We know what to look for.

Why ECO

What Makes ECO Different in Ontario

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40 Years of California Experience

ECO Heating & Cooling has been operating in Southern California since 1986. We understand the climate, the equipment in the field, and the specific challenges San Bernardino County homeowners face — because we've been solving them for four decades.

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C-20 HVAC + Class B Licensed

We hold both a C-20 HVAC contractor license and a Class B General Building Contractor license — CA Lic. #1087597. We pull permits, handle full building projects, and do work that unlicensed operators cannot legally touch.

Same-Day Service Available

Call before noon and we can typically dispatch same-day across San Bernardino County. For HVAC emergencies — which in a Ontario summer are real emergencies — we answer 24/7 with live technicians.

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Flat-Rate, Transparent Pricing

You get the price before we start. No hourly billing surprises. No upselling work you don't need. A fair price for quality work — the same standard since 1986.

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Every Brand, Every System

Carrier, Trane, Lennox, Rheem, Goodman, York, Daikin, Mitsubishi, Fujitsu — we service all of them. Our vans stock parts for every major brand so most repairs happen in a single visit.

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SCE & SoCalGas Rebate Expertise

We help Ontario homeowners identify and apply for every available incentive — SCE rebates, SoCalGas programs, federal IRA 25C and 25D credits. We handle the paperwork so you don't have to.

Need HVAC Service in Ontario?

ECO Heating & Cooling serves Ontario and all of San Bernardino County from our Corona base. Same-day service available. We answer 24/7 — no voicemail, no call center.

📞 Call ECO — (818) 294-7515