How many HVAC and plumbing companies are in Oakland, CA?

The ProComfort Registry lists 136 heating, cooling and plumbing businesses serving Oakland: 123 offering HVAC and 25 offering plumbing (some do both).

What is the average Registry Score in Oakland?

Rated companies in Oakland average 43.7 out of 100. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.

Which companies are featured in Oakland for 2026?

ProComfort Registry features Capital Heating & Air Conditioning, General Refrigeration Services Co, Hvac Oren's Services, Atlas Heating and Air Conditioning, Ramírez Duct Cleaning, Water Heaters Masters in Oakland. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.

How are Oakland companies ranked?

By Registry Score, with records confirmed by their owners listed first. See https://procomfortregistry.online/methodology for how the score is calculated.

Oakland, California

HVAC & Plumbing Pros in Oakland, CA

136 businesses serve Oakland. Compare them by Registry Score — reputation, digital presence and reach — with owner-confirmed records listed first.

Pros: 136
Avg. score: 43.7
Featured: 6

Featured · 2026

Featured in Oakland

How companies are featured →

Exceptional

Capital Heating & Air Conditioning

Featured

Oakland, CA 94621 4.7(685 reviews)

HVACHeatingA/C

(510) 569-8752 Website

Strong

General Refrigeration Services Co

Featured

Oakland, CA 94612 4.9(537 reviews)

HVACRefrigeration

(510) 652-1302 Website

Strong

Hvac Oren's Services

Featured

Oakland, CA 94603 4.8(379 reviews)

HVAC

(800) 974-5349 Website

Strong

Atlas Heating and Air Conditioning

Featured

Oakland, CA 94608 4.8(910 reviews)

HVACHeatingA/C

(510) 488-4152 Website

Strong

Ramírez Duct Cleaning

Featured

Oakland, CA 94621 4.8(121 reviews)

HVACDucts

(925) 732-2321 Website

Strong

Water Heaters Masters

Featured

Oakland, CA 94601 4.9(766 reviews)

PlumbingWater heaters

(510) 535-9419 Website

Showing 1–20 of 76

Exceptional

Capital Heating & Air Conditioning

Featured

Oakland, CA 94621 4.7(685 reviews)

HVACHeatingA/C

(510) 569-8752 Website

Strong

Atlas Heating and Air Conditioning

Featured

Oakland, CA 94608 4.8(910 reviews)

HVACHeatingA/C

(510) 488-4152 Website

Strong

Oakland Furnace Heat & Air Conditioning

Oakland, CA 94611 4.8(116 reviews)

HVACHeatingA/C

(925) 310-8491 Website

Strong

Hall's Refrigeration Heating & Air Conditioning Svc.

Oakland, CA 94621 4.6(27 reviews)

HVACHeatingA/CRefrigeration

(510) 562-8825 Website

Strong

Harry Clark Plumbing and Heating Inc

Oakland, CA 94611 4.7(75 reviews)

HVACPlumbingHeating

(510) 444-1776 Website

Established

Care Heating Air Conditioning

Featured

Oakland, CA 94621 4.6(38 reviews)

HVACHeatingA/C

(510) 798-7944 Website

Established

Harry Clark Heating and Air Conditioning

Oakland, CA 94611 4.5(17 reviews)

HVACHeatingA/C

(510) 444-1960 Website

Established

Element Home Solutions

Oakland, CA 94611 4.7(21 reviews)

HVACHeatingA/CDucts

(650) 410-7165 Website

Established

California Plumbing & Radiant Heating Inc.

Oakland, CA 94607 4.5(18 reviews)

HVACPlumbingHeating

(510) 444-3992 Website

Established

#10

Dimond Plumbing & Heating Company

Oakland, CA 94621 4.8(95 reviews)

HVACPlumbingHeating

(510) 522-2311 Website

Established

#11

HSC Commercial

Featured

Oakland, CA 94601 4.4(194 reviews)

HVACHeatingCommercial

(800) 786-6847 Website

Established

#12

Anchor Heating & Cooling Inc.

Oakland, CA 94608 4.2(65 reviews)

HVACHeatingA/C

(510) 520-9157 Website

Established

#13

Heating and Air Conditioning Inc.

Featured

Oakland, CA 94619 4.1(29 reviews)

HVACHeatingA/C

(510) 355-8269 Website

Established

#14

Bennetts Heating and Air Conditioning

Oakland, CA 94618 4.3(4 reviews)

HVACHeatingA/C

(510) 768-8367 Website

Established

#15

Elden Plumbing and Heating

Oakland, CA 94606 4.5(9 reviews)

HVACPlumbingHeating

(510) 356-8917 Website

Established

#16

Remington AC Company

Oakland, CA 94602 4.6(15 reviews)

HVACHeatingA/C

(415) 301-7855 Website

Established

#17

Heavenly Heating & Air

Oakland, CA 94612 4.6(53 reviews)

HVACHeatingA/C

(415) 767-8805 Website

Established

#18

88 Hvac

Oakland, CA 94612 4.6(77 reviews)

HVACHeatingA/C

(415) 215-0533 Website

Established

#19

Lacayo-Colt Plumbing & Heating

Oakland, CA 94602 3.9(62 reviews)

HVACPlumbingHeating

(510) 336-3496 Website

Established

#20

Seaside Refrigeration

Featured

Oakland, CA 94603 4.1(9 reviews)

HVACHeatingA/CRefrigeration

(510) 379-6138 Website

Oakland at a glance

How many HVAC and plumbing companies are in Oakland, CA?: The ProComfort Registry lists 136 heating, cooling and plumbing businesses serving Oakland: 123 offering HVAC and 25 offering plumbing (some do both).
What is the average Registry Score in Oakland?: Rated companies in Oakland average 43.7 out of 100. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.
Which companies are featured in Oakland for 2026?: ProComfort Registry features Capital Heating & Air Conditioning, General Refrigeration Services Co, Hvac Oren's Services, Atlas Heating and Air Conditioning, Ramírez Duct Cleaning, Water Heaters Masters in Oakland. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.
How are Oakland companies ranked?: By Registry Score, with records confirmed by their owners listed first. See https://procomfortregistry.online/methodology for how the score is calculated.