HVAC Services in Ontario, CA

40 HVAC contractors found

Need emergency service? 11 HVAC providers in Ontario offer 24/7 availability

All Pro Cooling, Heating, Plumbing & Electrical

4.8(8,272)
24/7 Highly Rated

Technicians are named in every positive review, with Oscar, Art, Jovaughn, and Cord appearing repeatedly for…

2311 E Locust St, Ontario, CA 91761
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Diamond Air Services

5.0(419)
Highly Rated

All 419 reviews carry a 5-star rating, and named technicians recur frequently enough to suggest consistent…

1630 E Francis St ste c, Ontario, CA 91761
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NexGen HVAC & Plumbing

4.7(564)
24/7

Positive reviews consistently praise diagnostic thoroughness and technician communication, with Carlos…

1428 S Grove Ave Unit B, Ontario, CA 91761
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Northstar Plumbing, Heating and Air Conditioning

4.7(333)

Four of four named reviews award 4 or 5 stars, with three specifically mentioning punctual arrival and quoted…

1351 S Grove Ave #110, Ontario, CA 91761
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Sears Appliance Repair

4.7(233)

Four of five five-star reviewers specifically mention technicians by name, praising their expertise and…

2530 S Euclid Ave, Ontario, CA 91762
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Citrine Hills

3.8(554)

Of 5 sampled reviews, all award 5-star ratings, with each mentioning at least one staff member by name.…

2800 E Riverside Dr, Ontario, CA 91761
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Macawsome Heating & Cooling

4.7(133)

All six accessible reviews award five stars, with three specifically praising same-day or next-day…

4375 E Lowell St Suite N, Ontario, CA 91761
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Sears Appliance Repair

4.5(102)

102 reviews yield a 4.5-star average, with 4 of 6 detailed reviews awarding five stars and citing specific…

1670 E 4th St, Ontario, CA 91764
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Avante

4.0(155)

Of 4 available reviews, all 4 are 1-star ratings citing significant concerns: management transitions…

1675 E G St, Ontario, CA 91764
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Plumbers Hub LLC

4.9(54)

All 6 sampled reviews award 5 stars, with consistent praise for same-day response times, fair pricing, and…

1709 S Helen Ave, Ontario, CA 91762
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A-1 Radiator & Air Conditioning

4.8(58)

All 58 reviews award 5 stars, with customers frequently using words like honest, fair, and thorough to…

208 S San Antonio Ave, Ontario, CA 91762
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California Rebuilt Exchange

4.6(59)

Five of eight reviewers give five stars, with specific praise for fast turnaround (3-hour rebuild mentioned…

1326 Brooks St, Ontario, CA 91762
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Hometown Plumbing Services

5.0(39)
24/7

All 39 reviews award 5 stars, with customers specifically praising same-day response times, transparent…

615 N Euclid Ave suite 843, Ontario, CA 91762
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Magnison and Moen Inc

4.9(40)

All eight featured reviewers award 5 stars, with technicians Kevin and Ryan named repeatedly for their…

1701 S Vineyard Ave H, Ontario, CA 91761
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Wright's Supply

5.0(36)

Eight reviewers mention same-day or next-day parts availability, with three specifically praising Andy by…

1195 Woodlawn St, Ontario, CA 91761
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Ontario Heating & Air Conditioning

4.6(32)

32 reviews yield a 4.6-star average rating, with all available reviewer feedback reflecting 5-star…

125 E California St, Ontario, CA 91761
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Tario Air Conditioning & Heating

5.0(19)

All 19 reviewers award 5 stars, with 7 specifically mentioning same-day or emergency response times. Four…

11193 Central Ave, Ontario, CA 91762
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United Service Technologies, A Tech24 Company.

3.9(44)
24/7

44 reviews yield a 3.9-star average with notable divergence: five-star reviews consistently praise specific…

720 S Milliken Ave, Ontario, CA 91761
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US Air Conditioning Distributors

4.1(30)

Six of eight reviewers praise the knowledgeable staff and fast service, with Matthew Gross noting a…

3062 Inland Empire Blvd, Ontario, CA 91764
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Ontario HVAC Solutions

5.0(11)
24/7

All eight reviewers awarded five stars, with mentions of same-day service, thermostat expertise, and furnace…

555 W State St, Ontario, CA 91762
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Ontario Refrigeration Services Inc

4.0(21)

Four of eight displayed reviews award five stars, with customers praising diagnostic skill, knowledgeable…

635 S Mountain Ave, Ontario, CA 91762
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Air Control Systems Inc

4.4(14)

5 of 7 detailed reviewers award five stars, praising technical skill and friendly service. Negative reviews…

1940 S Grove Ave, Ontario, CA 91761
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Keeping It Cool Heating & Air

5.0(9)

All 9 reviews award 5 stars, with 4 reviewers specifically naming Eddie or Tony as the technicians who…

742 W Maitland St, Ontario, CA 91762
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Mr Pro Service electrician

4.6(10)
24/7

Eight of ten reviewers awarded five stars, praising specific technicians like Naser for fire alarm repair and…

624 S Vine Ave, Ontario, CA 91762
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Gregg Electric Inc

3.9(11)

3 of 11 reviewers gave 1-star ratings citing concerning customer interactions and unnecessary replacement…

608 W Emporia St, Ontario, CA 91762
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Allied Mechanical

4.1(9)

Three of four reviewers awarded 5-star ratings, while one review cited workplace safety concerns. Positive…

1720 S Bon View Ave, Ontario, CA 91761
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DS HVAC LLC

5.0(5)

All five reviews award five stars, with clients emphasizing thorough diagnostics, careful problem…

1138 W Ralston St C, Ontario, CA 91762
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Air Temp Air Conditioning and Heating

3.5(10)

Five-star reviews praise fair pricing and same-day service without upselling, while one-star reviews describe…

2124 S Grove Ave B, Ontario, CA 91761
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General TrueVent Air Contractor Ontario

4.2(5)
24/7

Four of five reviewers awarded five-star ratings, with specific praise for thorough dust removal, polite…

11323 S Butterfield Ave, Ontario, CA 91762
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Russell Sigler Inc

2.7(14)

4 of 8 reviewers mention communication challenges, with negative experiences citing phone answering delays…

2641 Lindsay Privado Dr, Ontario, CA 91761
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HVAC Service Costs in Ontario, CA

Pricing ranges across all HVAC services offered in Ontario.

ServiceTypical RangePrice Points
AC Repair$79$2,9407 items →
AC Installation$162$21,6008 items →
AC Replacement$2,268$17,2805 items →
HVAC Maintenance$16$8407 items →
HVAC Repair$77$3,6057 items →
HVAC Service$74$14,8056 items →
Emergency HVAC$165$3,8506 items →
Commercial HVAC$2$86,4007 items →

Prices reflect hot desert metro averages based on HomeAdvisor and Angi published cost data. Last updated: April 2026.

HVAC in Ontario, CA: What Homeowners Should Know

Riverside’s inland location produces long stretches of intense heat and low humidity, so HVAC systems in nearby Ontario must deliver high-capacity cooling and dependable winter heating from November through February. The local market is small but busy: five contractors serve the area, averaging a 4.8 rating across 9,439 reviews, and two firms provide 24/7 service — search terms like hvac Ontario and hvac companies Ontario surface often.

City-wide pricing reflects that variability: services range from $2 at the low end to $86,400 for major commercial projects, so homeowners should plan for broad potential costs depending on equipment and scope. California mandates a C-20 Warm-Air Heating, Ventilating, and Air-Conditioning Contractor license through the CSLB, with candidates proving four years of HVAC experience within the past ten years before contracting.

Customer detail records were not provided, but market signals are clear: high average ratings and thousands of reviews suggest established reputations, while only two round-the-clock providers indicate opportunity for emergency responsiveness. For those hunting the best hvac Ontario options, expect tight competition on service bundles, seasonal promotions, and responsiveness as key differentiators.

Frequently Asked Questions

Among 40 HVAC contractors serving Ontario, the top-rated providers average 3.9★ across 11,311 reviews. The highest-ranked companies on this page are sorted by a combination of rating and review volume, so established contractors with consistent quality appear first. Check reviews, licensing, and response time to pick the right fit for your situation.

All HVAC Contractors in Ontario, CA

Complete directory of 40 contractors — browse alphabetically

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Other Cities in California

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