Groundwork

Market rankings · California

HVAC and plumbing companies in California

Every metro area, small-town market and county in California, ranked by the Groundwork market score for HVAC and plumbing companies, with competitor counts and household spending for each.

Listings
8,365
390 chain locations (5%)
Official establishments
11,686
+10.4% since 2019
Household spending a year
$43.9B
On home repairs, maintenance and insurance
Listings per 10k households
6.2
2% below the U.S.
Spending per listing
$5.2M
10% above the U.S.
Rank among states
#24 of 51
Market score 54 · Upper middle

A site report maps the HVAC and plumbing companies on map listings around any address in California by name and distance, and the spending within reach.

Free10 actions over 3 days, no card

Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

California has 8,365 HVAC and plumbing companies on map listings as of September 2026. Of those, 390 are chain locations, or 5%, against 4% across the U.S. That is 6.2 per 10,000 households, 2% below the U.S. rate of 6.3.

Household spending on home repairs, maintenance and insurance in California comes to about $43.9B a year: $3,240 per household, 7% above the U.S. average. That is about $5.2M of household spending for each company on map listings, 10% above the U.S. figure of $4.8M. The spending figure covers all home repairs, maintenance and insurance, not only HVAC and plumbing companies.

The official count of businesses with payroll classed as plumbing, heating and air-conditioning contractors in California was 11,686 in 2023, up 10.4% from 2019. That is one for every 1,159 households, against one for every 1,162 across the U.S. Across the U.S., the count rose 7.6% over the same years. Since fiscal 2022, 642 SBA-backed loans worth $365.6M have gone to businesses classed as plumbing, heating and air-conditioning contractors in California.

Among the 50 states and DC, California ranks #24 for HVAC and plumbing companies, with a Groundwork market score of 54 (upper middle). Of the 25 scored metro areas in or partly in California, the San Francisco-Oakland-Fremont metro area scores highest (74). Of the 9 scored small-town markets in or partly in California, the Red Bluff area scores highest (67).

Every market in California for HVAC and plumbing companies

Download the ranking (CSV)

Numbered by Groundwork market score among the markets based in California, highest first; the U.S. rank compares each market with every other of its kind. A metro area that crosses a state line is listed in each state it reaches, and numbered only in the state its page is under. How the score works.

Metro areas

Metro areas reaching California, ranked for HVAC and plumbing companies by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1San Francisco-Oakland-Fremont, CA749055.2$7.3M−2.4%#21 of 387
2Vallejo, CA74795.0$6.3M+0.6%#24 of 387
3Stockton-Lodi, CA731305.3$5.7M+5.5%#30 of 387
4Yuba City, CA72213.4$8.2M+3.3%#33 of 387
5San Jose-Sunnyvale-Santa Clara, CA704025.9$7M−0.6%#47 of 387
6Merced, CA67344.0$6.5M+5.1%#60 of 387
7Fresno, CA641915.2$5.3M+3.2%#74 of 387
8Sacramento-Roseville-Folsom, CA635426.1$5.1M+3.2%#85 of 387
9Napa, CA61265.2$6.6M−3.3%#103 of 387
10Visalia, CA60735.1$5.3M+2.4%#111 of 387
11Hanford-Corcoran, CA60235.2$5.1M+1.0%#112 of 387
12San Diego-Chula Vista-Carlsbad, CA587276.2$5.3M−0.6%#127 of 387
13Bakersfield-Delano, CA581485.2$5.1M+2.3%#128 of 387
14Los Angeles-Long Beach-Anaheim, CA542,8386.3$5M−2.6%#164 of 387
15San Luis Obispo-Paso Robles, CA52655.9$5.3M0.0%#181 of 387
16Salinas, CA51816.1$5.1M−1.5%#186 of 387
17El Centro, CA50244.8$5M+1.1%#194 of 387
18Santa Cruz-Watsonville, CA49666.8$5.1M−4.7%#199 of 387
19Modesto, CA471216.8$4.2M+0.7%#216 of 387
20Oxnard-Thousand Oaks-Ventura, CA461946.9$4.9M−1.5%#223 of 387
21Riverside-San Bernardino-Ontario, CA441,1087.6$3.9M+3.5%#245 of 387
22Santa Maria-Santa Barbara, CA421016.8$4.8M−1.4%#255 of 387
23Chico, CA39556.6$4.1M−0.5%#276 of 387
24Santa Rosa-Petaluma, CA361578.2$4M−0.4%#300 of 387
25Redding, CA22669.3$2.9M−0.3%#377 of 387

Small-town markets

Small-town markets reaching California, ranked for HVAC and plumbing companies by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Red Bluff, CA6793.6$7.1M−1.7%#73 of 476
2Clearlake, CA59134.8$5.3M−0.6%#150 of 476
3Eureka-Arcata, CA56274.9$5.2M−3.4%#165 of 476
4Ukiah, CA54174.9$5.4M−3.5%#189 of 476
5Bishop, CA4967.5$3.7M−4.4%#252 of 476
Gardnerville Ranchos, NV-CA42198.7$3.5M+0.9%#316 of 476
6Truckee-Grass Valley, CA41368.4$3.6M−0.4%#324 of 476
7Sonora, CA272511.0$2.6M−4.0%#446 of 476
8Susanville, CA2666.5$3.9M−13.1%#448 of 476
Crescent City, CANot scored44.2$6.1M−4.4%

Counties

Counties in California, ranked for HVAC and plumbing companies by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Yolo County, CA81344.4$6.9M+3.1%#52 of 1,707
2San Francisco County, CA78992.7$14M−5.6%#73 of 1,707
3Amador County, CA7663.7$7.7M+3.2%#96 of 1,707
4San Joaquin County, CA741305.3$5.7M+5.5%#136 of 1,707
5Alameda County, CA733175.3$7M−2.6%#149 of 1,707
6Solano County, CA73795.0$6.3M+0.6%#151 of 1,707
7Santa Clara County, CA723885.9$7M−0.9%#165 of 1,707
8Contra Costa County, CA722335.6$6.5M+0.3%#166 of 1,707
9Merced County, CA69344.0$6.5M+5.1%#227 of 1,707
10Madera County, CA66204.4$6.3M+7.4%#291 of 1,707
11Sacramento County, CA663295.8$5.3M+2.0%#301 of 1,707
12Fresno County, CA661715.3$5.2M+2.6%#303 of 1,707
13Calaveras County, CA6494.9$5.9M+2.8%#358 of 1,707
14Tehama County, CA6393.6$7.1M−1.7%#387 of 1,707
15Tulare County, CA63735.1$5.3M+2.4%#394 of 1,707
16Kings County, CA62235.2$5.1M+1.0%#426 of 1,707
17Napa County, CA61265.2$6.6M−3.3%#446 of 1,707
18Marin County, CA61656.3$6.3M−2.9%#449 of 1,707
19San Mateo County, CA611917.2$5.6M−2.5%#452 of 1,707
20Kern County, CA611485.2$5.1M+2.3%#457 of 1,707
21San Benito County, CA61146.8$5M+8.6%#460 of 1,707
22San Diego County, CA607276.2$5.3M−0.6%#491 of 1,707
23Placer County, CA591257.9$4.4M+8.9%#541 of 1,707
24Los Angeles County, CA581,9915.8$5.3M−3.0%#563 of 1,707
25San Bernardino County, CA584296.4$4.6M+1.9%#572 of 1,707
Show all 58 counties
Counties in California, ranked for HVAC and plumbing companies by Groundwork market score, continued
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
26San Luis Obispo County, CA55655.9$5.3M0.0%#675 of 1,707
27Monterey County, CA54816.1$5.1M−1.5%#699 of 1,707
28El Dorado County, CA54547.1$4.8M+0.6%#704 of 1,707
29Lake County, CA53134.8$5.3M−0.6%#733 of 1,707
30Sutter County, CA53206.0$4.7M−0.7%#739 of 1,707
31Stanislaus County, CA531216.8$4.2M+0.7%#752 of 1,707
32Humboldt County, CA52274.9$5.2M−3.4%#775 of 1,707
33Imperial County, CA52244.8$5M+1.1%#777 of 1,707
34Orange County, CA528477.8$4.5M−1.1%#782 of 1,707
35Santa Cruz County, CA51666.8$5.1M−4.7%#808 of 1,707
36Mendocino County, CA49174.9$5.4M−3.5%#884 of 1,707
37Ventura County, CA491946.9$4.9M−1.5%#888 of 1,707
38Santa Barbara County, CA481016.8$4.8M−1.4%#924 of 1,707
39Riverside County, CA486798.8$3.5M+5.0%#939 of 1,707
40Butte County, CA47556.6$4.1M−0.5%#958 of 1,707
41Inyo County, CA4467.5$3.7M−4.4%#1,069 of 1,707
42Sonoma County, CA421578.2$4M−0.4%#1,135 of 1,707
43Glenn County, CA3866.1$4.1M−2.6%#1,270 of 1,707
44Nevada County, CA36368.4$3.6M−0.4%#1,333 of 1,707
45Siskiyou County, CA34115.8$4.2M−4.5%#1,390 of 1,707
46Shasta County, CA31669.3$2.9M−0.3%#1,478 of 1,707
47Plumas County, CA2867.4$3.6M−5.9%#1,519 of 1,707
48Tuolumne County, CA242511.0$2.6M−4.0%#1,602 of 1,707
49Lassen County, CA2366.5$3.9M−13.1%#1,608 of 1,707
Yuba County, CANot scored10.3$77.5M+8.2%
Del Norte County, CANot scored44.2$6.1M−4.4%
Colusa County, CANot scored11.3$20.4M−0.1%
Mariposa County, CANot scored00.0n/a−1.2%
Trinity County, CANot scored23.6$6.8M−2.3%
Mono County, CANot scored11.7$18.3M−5.4%
Modoc County, CANot scored39.2$2.7M−2.9%
Sierra County, CANot scored00.0n/a−4.0%
Alpine County, CANot scored00.0n/a−11.6%

Markets with fewer than 5 HVAC and plumbing companies on map listings, and counties under 10,000 people, aren’t scored; they’re listed last in each table.

Questions

How many HVAC and plumbing companies are in California?

Map listings as of September 2026 show 8,365 HVAC and plumbing companies in California. 390 of them (5%) are chain locations. The listings count heating and air-conditioning companies and plumbers. Official counts show 11,686 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, up 10.4% from 2019.

How much do households in California spend on home repairs, maintenance and insurance?

About $43.9B a year, or $3,240 per household. That is 7% above the U.S. average (an index of 107, where 100 is the U.S. average). Spread across the 8,365 HVAC and plumbing companies on map listings, it comes to $5.2M per company. That spending covers all home repairs, maintenance and insurance, which HVAC and plumbing companies share with other businesses in the trade. It is estimated from the incomes of the 13,548,091 households in California and national spending patterns by income.

How does California compare with the U.S. for HVAC and plumbing companies?

California has 6.2 HVAC and plumbing companies per 10,000 households, 2% below the U.S. rate of 6.3. Spending per company is $5.2M, 10% above the U.S. figure of $4.8M. At the U.S. ratio of HVAC and plumbing companies to household spending, California would have about 9,227, against 8,365 on map listings. There is one business with payroll in the industry for every 1,159 households, against one for every 1,162 across the U.S. The official count rose 10.4% from 2019 to 2023, against +7.6% for the U.S.

Which market in California has the highest market score for HVAC and plumbing companies?

Among 25 scored metro areas in or partly in California, the San Francisco-Oakland-Fremont metro area scores highest, at 74 (upper middle). Among 9 scored small-town markets in or partly in California, the Red Bluff area scores highest, at 67 (upper middle). Among 49 scored counties in California, Yolo County scores highest, at 81 (high). Scores compare each market with others of its kind across the U.S.

What is the Groundwork market score?

The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. California scores 54 for HVAC and plumbing companies (upper middle), #24 of the 50 states and DC.

How can I see the market around a specific site?

Run a Groundwork site report on an address in California. It maps the HVAC and plumbing companies on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.

HVAC and plumbing in other states

All 51 states

Top markets for HVAC and plumbing companies across the U.S. · All business types in California

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This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are estimates for research only. Not investment or real estate advice.