← Top 100 HVAC in the San Francisco Bay Area

HVAC Companies in North Bay — Graded

All 52 graded hvac companies in North Bay, California, in market rank order. Same published formula, no paid placements. Data current as of 2026-10-25.

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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13
71AI ScoreTop 7%
BioTherm Solutions
Cotati · 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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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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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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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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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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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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40
68AI ScoreTop 22%
Right Now Air
Vacaville · Website
Legitimacy93
Online action49
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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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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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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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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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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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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84
55AI ScoreTop 46%
Cal-bay Service
Benicia · 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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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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102
55AI ScoreTop 55%
Indoor Climate Control, Inc.
Cloverdale · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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103
55AI ScoreTop 56%
Innovative Radiant Heating
Fairfield · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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104
55AI ScoreTop 56%
Jw Hanson Heating And Air
Santa Rosa · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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106
55AI ScoreTop 57%
Lee's Sheet Metal Heating & Cooling Inc
Vallejo · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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116
55AI ScoreTop 63%
Radiant Way Incorporated
San Rafael · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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118
55AI ScoreTop 64%
Reid Heating & Energy
San Rafael · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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122
55AI ScoreTop 66%
Sh Mechanical Inc
Suisun City · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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124
55AI ScoreTop 67%
Simpson Sheet Metal, Inc
Santa Rosa · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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132
55AI ScoreTop 71%
Vigil Mechanical
Benicia · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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133
55AI ScoreTop 72%
Wholesale Solutions Llc
Napa · Website
Legitimacy96
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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138
54AI ScoreTop 75%
Austin's Air Conditioning and Heating
Vacaville · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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139
54AI ScoreTop 75%
Baier Heating and Air Conditioning, Inc.
Rohnert Park · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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141
54AI ScoreTop 76%
Bell Products Inc
Napa · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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142
54AI ScoreTop 77%
Bill Kutz Heating and Air Conditioning
Santa Rosa · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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143
54AI ScoreTop 77%
Burkell Plumbing Inc.
Sausalito · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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151
54AI ScoreTop 82%
Excellence Heating & Air
Santa Rosa · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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152
54AI ScoreTop 82%
Gene Burch Plumbing, Heating & Air
Novato · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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157
54AI ScoreTop 85%
John Owens Services, Inc.
San Rafael · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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158
54AI ScoreTop 85%
Kelly Plumbing & Heating
Novato · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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162
54AI ScoreTop 88%
Milano Mechanical
Petaluma · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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163
54AI ScoreTop 88%
MSR Mechanical LLC
Benicia · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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165
54AI ScoreTop 89%
Pearce Home Comfort
Sonoma · Website
Legitimacy93
Online action25
Reviewsno data yet
Coverage 35% · 2026-10-25
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179
41AI ScoreTop 97%
Raven Heating & Air Conditioning Inc.
Novato
Legitimacy96
Online action0
Reviewsno data yet
Coverage 35% · 2026-10-25
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183
40AI ScoreTop 99%
CJ’s Mechanical Services
Santa Rosa
Legitimacy93
Online action0
Reviewsno data yet
Coverage 35% · 2026-10-25
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185
40AI ScoreTop 100%
Severson Heating & Cooling
Sonoma
Legitimacy93
Online action0
Reviewsno data yet
Coverage 35% · 2026-10-25
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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 →