Best HVAC companies in Rialto, CA

The highest-scoring HVAC company in and near Rialto is Magnolia Heating and Cooling (score 88, 4.9 stars from 1,545 Google reviews). 19 companies meet the 5 Star standard within about 16 miles.

Last updated Nov 1, 2026How we rank
  1. 1

    Magnolia Heating and Cooling

    4.9 · 1,545 Google reviewsRiverside, CA75 years in business

    Magnolia Heating and Cooling, presented on its website as Magnolia Heating, Cooling & Plumbing, serves Riverside and the Inland Empire. Founded in 1951, the company provides air conditioning and heating repair, instal…

    Financing availableEmergency service
    88SCORE
  2. 2

    RKM Heating and Air Conditioning

    4.9 · 1,316 Google reviewsRiverside, CA

    RKM Heating and Air Conditioning serves the Greater Riverside Area with residential and commercial heating, air conditioning, indoor air quality, home performance, and plumbing services. Its site lists new system inst…

    Financing available
    80SCORE
  3. 3

    Eco Air Heating & Cooling

    5.0 · 406 Google reviewsRiverside, CA

    Eco Air Heating & Cooling provides heating, ventilation, and air conditioning services from Riverside for residential and commercial customers across Southern California. Its work covers system repair, replacement, in…

    80SCORE
  4. 4

    All City Plumbing, Air & Electrical

    5.0 · 333 Google reviewsRiverside, CA
    80SCORE
  5. 5

    First Class Plumbing & AC

    4.9 · 977 Google reviewsRiverside, CA
    79SCORE
  6. 6

    Drains and Plumbing 24

    5.0 · 350 Google reviewsRiverside, CA
    79SCORE
  7. 7

    All Pro Cooling, Heating, Plumbing & Electrical

    4.8 · 9,281 Google reviewsOntario, CA
    78SCORE
  8. 8

    Year Round Heating & Air Conditioning

    5.0 · 1,396 Google reviewsRedlands, CA
    77SCORE
  9. 9

    MSP HEATING AND AIR CONDITIONING

    4.9 · 1,211 Google reviewsJurupa Valley, CA
    73SCORE
  10. 10

    RC AC Repair

    4.9 · 117 Google reviewsEastvale, CA
    72SCORE
  11. 11

    Dragonfly Heating & Cooling

    4.9 · 758 Google reviewsRiverside, CA
    71SCORE
  12. 12

    AIRPIRE Heating and Air Conditioning

    5.0 · 103 Google reviewsRialto, CA
    Free estimatesFinancing availableBackground-checked
    71SCORE
  13. 13

    Sheldon's Heating, Air Conditioning & Plumbing, Inc.

    4.8 · 835 Google reviewsRiverside, CA
    67SCORE
  14. 14

    Daniels Heating and Air Conditioning

    4.9 · 273 Google reviewsColton, CA
    67SCORE
  15. 15

    Imagine That Heating & Air

    5.0 · 130 Google reviewsRiverside, CA
    Emergency serviceFinancing available
    66SCORE
  16. 16

    NexGen HVAC & Plumbing

    4.6 · 611 Google reviewsOntario, CA
    65SCORE
  17. 17

    Ace Home Heating & Air Conditioning

    4.7 · 1,315 Google reviewsRiverside, CA
    64SCORE
  18. 18

    Northstar Plumbing, Heating and Air Conditioning

    4.7 · 337 Google reviewsOntario, CA
    61SCORE
  19. 19

    Hasco Heating Air Conditioning Services Co

    4.8 · 125 Google reviewsRiverside, CA
    61SCORE

We list only companies that clear our published bar, so this area is still filling in. As more HVAC companies near Rialto qualify, they'll appear here automatically.

Compare the top 10

Top HVAC companies in Rialto by 5 Star Score
#CompanyScoreGoogle ratingReviewsYearsBased in
1Magnolia Heating and Cooling884.91,54575Riverside
2RKM Heating and Air Conditioning804.91,316–Riverside
3Eco Air Heating & Cooling805.0406–Riverside
4All City Plumbing, Air & Electrical805.0333–Riverside
5First Class Plumbing & AC794.9977–Riverside
6Drains and Plumbing 24795.0350–Riverside
7All Pro Cooling, Heating, Plumbing & Electrical784.89,281–Ontario
8Year Round Heating & Air Conditioning775.01,396–Redlands
9MSP HEATING AND AIR CONDITIONING734.91,211–Jurupa Valley
10RC AC Repair724.9117–Eastvale

HVAC companies in Rialto: quick answers

Who is the highest-rated HVAC company in Rialto, CA?

Magnolia Heating and Cooling has the highest 5 Star Score among HVAC companies in and near Rialto: 88 out of 100, with a 4.9 star Google rating from 1,545 reviews.

How many 5 Star HVAC companies serve Rialto?

19 HVAC companies meet our standard within about 16 miles of Rialto: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 19 have 21,419 Google reviews between them, averaging 4.88 stars.

How are these HVAC companies ranked?

By 5 Star Score: rating quality adjusted for review count (45 points), review volume (25), review recency (15), years in business (10) and license verification (5). Businesses cannot pay to change their score.

HVAC companies near Rialto

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Ratings and review counts come from each company's public Google listing and are re-checked monthly. 5 Star Home Service Pros is independent; companies cannot pay for placement.