← All San Francisco Bay Area categories

Top 100 HVAC Companies in the San Francisco Bay Area — Graded

186 hvac companies in the San Francisco Bay Area clear our data floor — verified in at least two independent sources with a working phone or website — and are graded by one published formula. The top 100 are below; the full ranked list is split by area. Grades refreshed monthly; data current as of 2026-10-25.

East Bay (49)North Bay (52)San Francisco & the Peninsula (27)South Bay & Silicon Valley (58)
1
81AI ScoreTop 1%
Heat Transfer Equipment Company, Inc.
Half Moon Bay · Website
Legitimacy96
Online action70
Reviewsno data yet
Coverage 35% · 2026-10-25
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2
73AI ScoreTop 2%
Pelle Heating & Air Conditioning
San Jose · Website
Legitimacy97
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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3
73AI ScoreTop 2%
Reliable Air Mechanical
San Jose · Website
Legitimacy100
Online action52
Reviewsno data yet
Coverage 35% · 2026-10-25
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4
73AI ScoreTop 3%
Stevenson Mechanical Inc
Oakley · Website
Legitimacy97
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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5
73AI ScoreTop 3%
Performance Air Service, Inc.
Santa Clara · Website
Legitimacy96
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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6
73AI ScoreTop 4%
SierraVENTs
Union City · Website
Legitimacy96
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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7
73AI ScoreTop 4%
Wolfe Mechanical
Campbell · Website
Legitimacy96
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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8
73AI ScoreTop 5%
Zero Energy Associates
Sebastopol · Website
Legitimacy96
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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9
71AI ScoreTop 5%
Valley Comfort Heating and Air
Santa Rosa · Website
Legitimacy97
Online action52
Reviewsno data yet
Coverage 35% · 2026-10-25
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10
71AI ScoreTop 6%
A & H Heating and Air Conditioning Service
San Jose · Website
Legitimacy93
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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11
71AI ScoreTop 6%
ABC Cooling, Heating and Plumbing
Hayward · Website
Legitimacy96
Online action52
Reviewsno data yet
Coverage 35% · 2026-10-25
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12
71AI ScoreTop 7%
Air Care Heating & Cooling
San Jose · Website
Legitimacy96
Online action52
Reviewsno data yet
Coverage 35% · 2026-10-25
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13
71AI ScoreTop 7%
BioTherm Solutions
Cotati · Website
Legitimacy93
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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14
71AI ScoreTop 8%
Future Air
San Jose · Website
Legitimacy96
Online action52
Reviewsno data yet
Coverage 35% · 2026-10-25
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15
71AI ScoreTop 9%
Green Planet Heating & Cooling Inc
San Jose · Website
Legitimacy93
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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16
71AI ScoreTop 9%
Indoor Air Design
San Jose · Website
Legitimacy96
Online action52
Reviewsno data yet
Coverage 35% · 2026-10-25
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17
71AI ScoreTop 10%
J&J Air Conditioning
San Jose · Website
Legitimacy93
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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18
71AI ScoreTop 10%
Made Simple Heating And Air
Santa Clara · Website
Legitimacy93
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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19
71AI ScoreTop 11%
Marcucci Heating & Air Conditioning
Redwood City · Website
Legitimacy93
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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20
71AI ScoreTop 11%
Martinico and Sons
San Jose · Website
Legitimacy93
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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21
71AI ScoreTop 12%
Nielson Mechanical
Fairfield · Website
Legitimacy96
Online action52
Reviewsno data yet
Coverage 35% · 2026-10-25
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22
71AI ScoreTop 12%
R.H.Hydronics
San Rafael · Website
Legitimacy93
Online action55
Reviewsno data yet
Coverage 35% · 2026-10-25
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23
70AI ScoreTop 13%
Residential Heating and Air Conditioning
Campbell · Website
Legitimacy97
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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24
70AI ScoreTop 13%
Aquinas HVAC
San Jose · Website
Legitimacy93
Online action52
Reviewsno data yet
Coverage 35% · 2026-10-25
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25
70AI ScoreTop 14%
Blue Mountain Construction Services
Vacaville · Website
Legitimacy93
Online action52
Reviewsno data yet
Coverage 35% · 2026-10-25
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26
70AI ScoreTop 14%
Gow Supply Co
San Francisco · Website
Legitimacy93
Online action52
Reviewsno data yet
Coverage 35% · 2026-10-25
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27
69AI ScoreTop 15%
Air Control Mechanical
Livermore · Website
Legitimacy96
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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28
69AI ScoreTop 16%
Duct Care Services
Brentwood · Website
Legitimacy96
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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29
69AI ScoreTop 16%
M Meier & Sons Heating & Air Conditioning
Santa Rosa · Website
Legitimacy96
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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30
68AI ScoreTop 17%
Absolute Air
Martinez · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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31
68AI ScoreTop 17%
AMS Coast Sheet Metal
Pacifica · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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32
68AI ScoreTop 18%
Core Heating and Air Conditioning
Petaluma · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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33
68AI ScoreTop 18%
Enviro Heating and Air Conditioning
Rohnert Park · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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34
68AI ScoreTop 19%
Grant Mechanical
Redwood City · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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35
68AI ScoreTop 19%
Hulbert Heating & Air Conditioning Inc
Cotati · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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36
68AI ScoreTop 20%
J.R. Heating and Cooling Systems
Hayward · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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37
68AI ScoreTop 20%
Lennon Heating and Air Conditioning
Sonoma · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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38
68AI ScoreTop 21%
Morris Heating and Sheet Metal
Santa Rosa · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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39
68AI ScoreTop 21%
Peninsula Heating
South San Francisco · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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40
68AI ScoreTop 22%
Right Now Air
Vacaville · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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41
68AI ScoreTop 23%
Valley Mechanical Corporation
San Jose · Website
Legitimacy93
Online action49
Reviewsno data yet
Coverage 35% · 2026-10-25
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42
66AI ScoreTop 23%
Pelle Heating & Air Conditioning
Morgan Hill · Website
Legitimacy100
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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43
64AI ScoreTop 24%
Comfort Dynamics
San Leandro · Website
Legitimacy96
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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44
64AI ScoreTop 24%
Select Mechanical
Livermore · Website
Legitimacy96
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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45
63AI ScoreTop 25%
AC Logix
Pleasanton · Website
Legitimacy93
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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46
63AI ScoreTop 25%
Air Mechanix
San Jose · Website
Legitimacy93
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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47
63AI ScoreTop 26%
Comfort Energy, Inc.
Milpitas · Website
Legitimacy93
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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48
63AI ScoreTop 26%
Contra Costa Heating & Air Conditioning
San Leandro · Website
Legitimacy93
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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49
63AI ScoreTop 27%
Intuitive Climate Control
Palo Alto · Website
Legitimacy93
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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50
63AI ScoreTop 27%
K&S Mechanical
Vacaville · Website
Legitimacy93
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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51
63AI ScoreTop 28%
Ongaro & Sons
Petaluma · Website
Legitimacy93
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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52
63AI ScoreTop 28%
Ongaro & Sons
Santa Rosa · Website
Legitimacy93
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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53
63AI ScoreTop 29%
Sebastopol Heat & Cool
Sebastopol · Website
Legitimacy93
Online action40
Reviewsno data yet
Coverage 35% · 2026-10-25
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54
62AI ScoreTop 30%
Jw Heating And Air Conditioning
San Carlos · Website
Legitimacy96
Online action37
Reviewsno data yet
Coverage 35% · 2026-10-25
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55
59AI ScoreTop 30%
Atlas Heating and Air Conditioning
Santa Rosa · Website
Legitimacy93
Online action34
Reviewsno data yet
Coverage 35% · 2026-10-25
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56
59AI ScoreTop 31%
Graydon Kouri Plumbing Heating Air Conditioning
Fairfield · Website
Legitimacy93
Online action34
Reviewsno data yet
Coverage 35% · 2026-10-25
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57
59AI ScoreTop 31%
Northbay Refrigerator Repair
Santa Rosa · Website
Legitimacy93
Online action34
Reviewsno data yet
Coverage 35% · 2026-10-25
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58
57AI ScoreTop 32%
A-1 Heating And Cooling
San Jose · Website
Legitimacy100
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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59
57AI ScoreTop 32%
Accurate Heating And Air Conditioning
Santa Rosa · Website
Legitimacy100
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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60
57AI ScoreTop 33%
Cold Craft, Inc.
Campbell · Website
Legitimacy100
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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61
57AI ScoreTop 33%
Comfy Heating & Air Conditioning Inc.
San Leandro · Website
Legitimacy100
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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62
57AI ScoreTop 34%
Suisun Valley Sheet Metal, Inc.
Fairfield
Legitimacy96
Online action27
Reviewsno data yet
Coverage 35% · 2026-10-25
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63
56AI ScoreTop 34%
Aarvaks Heating & Air Conditioning
Berkeley · Website
Legitimacy97
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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64
56AI ScoreTop 35%
Kc Home Services
Santa Rosa · Website
Legitimacy97
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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65
56AI ScoreTop 35%
Superior Mechanical Services
Livermore · Website
Legitimacy97
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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66
55AI ScoreTop 36%
Abco Mechanical Contractors
San Francisco · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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67
55AI ScoreTop 37%
Ackley Sheetmetal
Hayward · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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68
55AI ScoreTop 37%
Advnc Air Technologies
Santa Clara · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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69
55AI ScoreTop 38%
Air & Plumbing Systems, Inc.
Campbell · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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70
55AI ScoreTop 38%
Air Masters Heating And Air Conditioning Inc.
Discovery Bay · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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71
55AI ScoreTop 39%
Albert Nahman Plumbing, Heating, And Cooling
Berkeley · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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72
55AI ScoreTop 39%
Allied Heating And Air Conditioning
San Rafael · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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73
55AI ScoreTop 40%
Alternative Hvac Solutions
San Carlos · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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74
55AI ScoreTop 40%
American Mechanical, Inc.
Walnut Creek · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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75
55AI ScoreTop 41%
Amko Refrigeration & Air Conditioning
San Jose · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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76
55AI ScoreTop 41%
Anchor Heating & Cooling, Inc.
Oakland · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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77
55AI ScoreTop 42%
Aranda Air
San Jose · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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78
55AI ScoreTop 42%
Associated Heating Of San Francisco
San Francisco · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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79
55AI ScoreTop 43%
Awesome Heating And Air Conditioning Inc
Livermore · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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80
55AI ScoreTop 44%
Baja Mechanical Inc.
Richmond · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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81
55AI ScoreTop 44%
Bel Air Mechanical
Concord · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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82
55AI ScoreTop 45%
Big Air Heating & Air Conditioning
Concord · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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83
55AI ScoreTop 45%
Bodnar Heating & Air Conditioning, Inc.
Redwood City · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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84
55AI ScoreTop 46%
Cal-bay Service
Benicia · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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85
55AI ScoreTop 46%
City Mechanical, Inc.
Hercules · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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86
55AI ScoreTop 47%
Clean Air Hvac Inc
Pacheco · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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87
55AI ScoreTop 47%
Coldflo Mechanical, Inc.
Healdsburg · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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88
55AI ScoreTop 48%
Design Heating And Air Conditioning
San Jose · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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89
55AI ScoreTop 48%
Dg Heating And Air Conditioning
San Jose · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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90
55AI ScoreTop 49%
Dmg North
Castro Valley · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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91
55AI ScoreTop 49%
Doke's Plumbing, Inc.
San Rafael · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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92
55AI ScoreTop 50%
Eagle Refrigeration Heating & A/c Inc
Brisbane · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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93
55AI ScoreTop 50%
East Bay Heating And Cooling Inc.
Concord · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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94
55AI ScoreTop 51%
Energy Mechanix
Belmont · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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95
55AI ScoreTop 52%
Falcone Plumbing, Heating & Air Conditioning
San Jose · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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96
55AI ScoreTop 52%
Ferreira Service
San Ramon · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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97
55AI ScoreTop 53%
Flanders Heat & Air Systems
Pleasanton · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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98
55AI ScoreTop 53%
Global Heating And Cooling Services
Milpitas · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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99
55AI ScoreTop 54%
Golden Bear Heating & Air
San Jose · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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100
55AI ScoreTop 54%
Haddon Heating And Cooling
Concord · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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See every graded hvac company: East Bay · North Bay · San Francisco & the Peninsula · South Bay & Silicon Valley

How the AI Score works

Every company carries an AI Score from 1–100, computed by one published formula from the signals measurable today — legitimacy and online action, verified across at least two independent sources (open place datasets and public registries). The formula's other factors — blended reviews, complaint record, and responsiveness — carry no weight in the score until licensed data sources for them exist. When they land, the score re-spreads across the full formula.

One disclosed exception: a score of 100 is reserved for RankMyCompany clients; every other score is computed by the same formula for everyone. Scores are not spread artificially — companies with identical measured data share identical scores — and each listing also shows its rank and its percentile within its category.

Missing-data rule: when a factor has no lawful data source for a company yet, its weight redistributes proportionally across the factors that do have data, and every score shows its data-coverage %. Coverage rises as licensed sources are added; scores are recomputed monthly and score history is kept for every company.

No score is ever adjusted by hand, sold, or removed for payment. Companies marked RMC Client are scored by the exact same formula as everyone else — the 100 cap above is the only exception, and it is disclosed here rather than hidden. If your company's underlying data is wrong, file a correction on the dispute page — disputes fix the data, and the corrected data flows into the next ranking run.

Place data: © OpenStreetMap contributors (ODbL) and Overture Maps Foundation (CDLA Permissive 2.0). Listings are refreshed monthly; a score change from a refresh takes effect only after the new score holds for two consecutive runs. Formula changes are published as a new methodology version — never applied silently.

Read the full standard — The RMC Standard →