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Thermostat Services in California

9,478 local Thermostat Services pros serving 770 cities across California. Looking for thermostat installation in California? HVAC Service Fast lists 9,478 local Thermostat Services companies serving 770 cities — from Los Angeles and Sacramento to San Jose. Compare Google ratings, check license details and contact companies directly — no middleman, no fees. California sees both hot summers (~80°F) and cold winters (~50°F), so equipment works year-round with little… Read more

Compare Thermostat Services Companies in California

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Lockwood Mechanical Inc

P O BOX 22890, Carmel, CA 93922, USA

License on file
AC Services Heating Services Ductwork Services
No ratings yet 33 yrs

Sac City Heat And Air Inc

100 ELKINS CIRCLE, Folsom, CA 95630, USA

License on file
AC Services Heating Services Ductwork Services
No ratings yet 33 yrs

Variable Speed Solutions Inc

1920 E OCCIDENTAL ST, Santa Ana, CA 92705, USA

License on file
AC Services Heating Services Ductwork Services
No ratings yet 33 yrs

Dean's Mechanical

4338 LANDOLT AVE, Sacramento, CA 95821, USA

License on file
AC Services Heating Services Ductwork Services
No ratings yet 33 yrs

J D I Development

21303 FRIES AVENUE, Carson, CA 90745, USA

License on file
AC Services Heating Services Ductwork Services
No ratings yet 33 yrs

John's Air Company

12933 BRACKNELL STREET, Cerritos, CA 90703, USA

License on file
AC Services Heating Services Ductwork Services
No ratings yet 33 yrs

Century Commercial Service

12820 EARHART AVENUE, Auburn, CA 95602, USA

License on file
AC Services Heating Services Ductwork Services
No ratings yet 33 yrs

About Thermostat Services in California

Looking for thermostat installation in California? HVAC Service Fast lists 9,478 local Thermostat Services companies serving 770 cities — from Los Angeles and Sacramento to San Jose. Compare Google ratings, check license details and contact companies directly — no middleman, no fees.

California sees both hot summers (~80°F) and cold winters (~50°F), so equipment works year-round with little downtime. Typical jobs include thermostat installation, thermostat repair, smart thermostat installation and seasonal maintenance.

Contractor licensing in California runs through the California Contractors State License Board (CSLB). Where a company lists a license number on its profile, you can verify it yourself on the official portal before you hire — a two-minute check that filters out most bad actors.

Thermostat Services in California — FAQ

How many Thermostat Services companies are listed in California?
HVAC Service Fast currently lists 9,478 Thermostat Services companies across 770 cities in California. Every profile shows the data we have on file — ratings from public sources, phone, address and, where available, license numbers.
How do I verify a Thermostat Services contractor's license in California?
Use the official California Contractors State License Board (CSLB) search. If a company shows a license number on its HVAC Service Fast profile, look it up there to confirm it is current before signing a contract.
How much does Thermostat Services cost in California?
Prices vary with job scope, equipment and local labor rates, so treat any flat number online with caution. Our free HVAC cost guide explains typical price factors, and requesting two or three quotes from the companies listed here is the fastest way to see real local pricing.
Which California cities have the most Thermostat Services pros?
The largest concentrations are in Los Angeles, Sacramento, San Jose, San Diego, Riverside. Use the city filter to narrow this page, or open a city page for the full local list.

Thermostat Services by City in California

Open a city page for the full local list of Thermostat Services pros.

Acampo4 Acton3 Adelanto5 Agoura4 Agoura Hills9 Agua Dulce4 Aguanga2 Alameda24 Alamo3 Albion1 Alexandria1 Alhambra18 Aliso Viejo4 Alpena1 Alpine13 Alta1 Altadena8 Alturas1 American Canyon6 Anaheim149 Anderson6 Antelope21 Antioch29 Anza1 Apple Valley23 Aptos2 Arbuckle1 Arcadia1 Arcadia19 Arcata2 Arden-Arcade5 Armona2 Arnold3 Aromas1 Arroyo Grande1 Artesia6 Arvin2 Atascadero9 Atwater17 Auberry2 Auburn16 Austin1 Avalon1 Avocado Heights1 Avondale1 Azusa14 Bakersfield166 Baldwin Park13 Bangor1 Banning10 Barstow3 Bay Point2 Beaumont15 Bell1 Bell Gardens4 Bella Vista2 Bellflower17 Belmont3 Ben Lomond1 Bend1 Benicia8 Berkeley3 Bermuda Dunes3 Bethel Island1 Beverly Hills12 Big Bear City7 Big Bear Lake3 Bishop5 Bloomington6 Blue Lake1 Blue Ridge1 Blythe5 Boca Raton2 Boise1 Bolinas1 Bonita6 Bonsall4 Borrego Springs1 Bothell1 Boulder Creek1 Boulevard1 Bradenton1 Bradley1 Brawley7 Brea24 Brentwood24 Brisbane3 Brookings1 Buckeystown1 Buellton6 Buena Park21 Buffalo Grove1 Bullhead City2 Burbank55 Burlingame8 Burney1 Cabazon1 Calabasas7 Calexico7 California City3 Calimesa7 Calistoga1 Camarillo26 Cameron Park10 Camino1 Campbell16 Canyon Lake7 Capitola1 Carlsbad26 Carmichael22 Carpinteria1 Carrollton1 Carson11 Carson City2 Castaic10 Castro Valley7 Castroville2 Cathedral City12 Centerville1 Ceres18 Cerritos17 Charlotte2 Cherry Valley2 Chester1 Chico19 Chino42 Chino Hills35 Chowchilla1 Chula Vista53 Citrus Heights35 Claremont6 Clarksburg1 Clayton8 Clearlake Oaks1 Clearwater1 Clinton Township1 Cloverdale5 Clovis39 Clyde1 Coachella21 Coalinga2 Coarsegold2 Colfax6 Colton7 Columbia1 Colusa1 Commerce6 Compton7 Concord54 Cool4 Copperopolis3 Corcoran2 Corning1 Corona76 Coronado2 Corte Madera2 Costa Mesa32 Cotati6 Coto De Caza1 Cottonwood5 Coulterville2 Covina17 Cranberry Township1 Crescent City3 Crestline4 Creve Coeur1 Cromberg1 Crows Landing2 Culver City7 Cupertino8 Cutler2 Cutten1 Cuyama1 Cypress20 Daly City9 Dana Point7 Danville11 Davis4 De Pere1 Del Mar5 Delano1 Delhi4 Denair1 Descanso3 Desert Center1 Desert Hot Springs28 Diamond Bar26 Diamond Springs11 Dickson1 Dinuba1 Discovery Bay10 Dixon4 Dos Palos1 Downers Grove1 Downey19 Draper1 Duarte7 Dublin6 Dunnigan1 Dunsmuir3 Durham3 East Los Angeles1 East Palo Alto4 Eastvale15 El Cajon76 El Centro15 El Cerrito3 El Dorado Hills12 El Granada1 El Monte24 El Segundo1 El Sobrante2 Elk Grove55 Elmira1 Elverta7 Emeryville1 Emmett1 Empire1 Encinitas26 Escalon5 Escondido71 Etna1 Eureka4 Evanston1 Exeter4 Fair Oaks16 Fairfax1 Fairfax3 Fairfield25 Fallbrook16 Fallon1 Farmersville2 Felton4 Fillmore10 Firebaugh1 Florence2 Florence-Graham21 Folsom19 Fontana40 Foresthill3 Forestville3 Fort Bragg6 Fort Lauderdale1 Fort Wayne1 Fortuna2 Fountain Valley16 Fowler4 Frazier Park2 Fremont1 Fremont23 French Camp2 Fresno146 Fullerton44 Galt6 Garberville1 Garden Grove42 Gardena28 Gardnerville2 Georgetown2 Geyserville1 Gilbert2 Gilmer1 Gilroy30 Glendale102 Glendora25 Gold River3 Goleta6 Gonzales2 Grand Terrace6 Granite Bay10 Grass Valley14 Graton1 Greenfield1 Greenville1 Gridley3 Grimes1 Grover Beach5 Guerneville1 Hacienda Heights20 Half Moon Bay3 Haltom City1 Hanford15 Hanover1 Haverhill1 Hawaiian Gardens2 Hawthorne10 Hayward28 Healdsburg3 Hemet25 Henderson4 Herald2 Hermosa Beach1 Hesperia22 Hickman1 Hidden Valley Lake1 Highgrove1 Highland13 Hoffman Estates1 Hollister33 Holtville3 Homeland2 Hopland4 Hornbrook1 Hughson3 Huntington Beach58 Huntington Park5 Idyllwild1 Imperial7 Imperial Beach7 Incline Village2 Indian Wells1 Indianapolis1 Indio59 Industry1 Inglewood10 Ione4 Irvine54 Irwindale2 Isleton2 Jackson2 Jamestown2 Jamul6 Joshua Tree2 Jurupa Valley29 Kahului1 Keene2 Kelseyville2 Kennewick1 Kensington1 Kent1 Kerman5 Keyes1 King City2 Kingsburg4 Klamath Falls1 Knights Landing1 Knightsen1 Kuna1 La Cañada Flintridge5 La Crescenta-Montrose15 La Habra19 La Habra Heights2 La Honda1 La Mesa19 La Mirada16 La Palma3 La Puente27 La Quinta20 La Verne25 Ladera Ranch2 Lafayette1 Laguna Beach5 Laguna Hills14 Laguna Niguel10 Laguna Woods1 Lake Arrowhead5 Lake Elsinore30 Lake Forest24 Lake Havasu City8 Lake Isabella2 Lakeport5 Lakeside25 Lakeville1 Lakewood19 Lamont3 Lancaster1 Lancaster58 Las Vegas9 Lathrop6 Lawndale8 Lemon Grove3 Lemoore5 Lenexa2 Lennox1 Liberty Hill1 Lincoln18 Linden1 Lindsay2 Littlerock10 Live Oak1 Livermore28 Livingston3 Lockeford1 Lockwood1 Lodi15 Loma Linda2 Lomita8 Lompoc7 Lone Pine1 Long Beach80 Loomis13 Los Alamitos10 Los Angeles873 Los Banos18 Los Gatos6 Los Molinos2 Los Osos3 Loyalton2 Lucerne Valley1 Lynnwood1 Lynwood11 Madera26 Magalia2 Malibu7 Mammoth Lakes3 Manhattan Beach3 Manteca18 Marina8 Mariposa4 Martinez10 Maryland Heights1 Marysville6 Maywood3 McKinleyville1 McKinney1 Mead Valley1 Meadow Vista10 Mecca4 Memphis4 Menifee34 Menlo Park7 Mentone2 Merced20 Mesa2 Metairie1 Middletown3 Midland1 Milan1 Mill Valley1 Millbrae6 Millville1 Milpitas15 Minden1 Minneapolis1 Mission Viejo24 Modesto56 Monrovia13 Montclair8 Montebello11 Monterey7 Monterey Park12 Monument1 Mooresville1 Moorpark11 Moreno Valley56 Morgan Hill25 Morongo Valley3 Morro Bay1 Moss Beach1 Mount Airy1 Mount Shasta4 Mountain Green1 Mountain House3 Mountain View8 Murphys3 Murrieta56 Napa17 Nashville1 National City12 Needles5 Nevada City2 Newark5 Newcastle5 Newman4 Newport Beach6 Nice1 Nicolaus1 Nipomo9 Norco26 Norristown1 North Highlands23 North San Juan1 Norwalk25 Novato12 Nuevo2 Oak Hills9 Oak Park4 Oak View3 Oakdale15 Oakhurst4 Oakland48 Oakley14 Occidental1 Oceano1 Oceanside29 Ogden1 Ojai2 Olivehurst5 Ontario39 Orange64 Orangevale21 Orcutt5 Orinda1 Orland2 Orlando1 Orosi1 Oroville16 Oxnard27 Pacheco6 Pacific Grove4 Pacifica4 Palermo1 Palm Coast1 Palm Desert35 Palm Springs16 Palmdale37 Palo Alto2 Palos Verdes Estates2 Paradise6 Paramount18 Parlier1 Parsippany1 Pasadena31 Paso Robles16 Patterson14 Peachtree Corners1 Penn Valley3 Penngrove1 Pennsauken1 Penryn2 Perris31 Petaluma19 Phelan4 Phoenix5 Pico Rivera9 Pine Grove1 Pine Valley4 Pinole3 Pioneer5 Piru1 Pismo Beach3 Pittsburg15 Pixley1 Placentia22 Placerville14 Pleasant Grove1 Pleasant Hill10 Pleasanton18 Plumas Lake7 Plymouth2 Pollock Pines3 Pomona20 Port Hueneme3 Porterville10 Portland1 Poway15 Prescott Valley1 Quartz Hill6 Queen Creek1 Quincy1 Ramona19 Rancho Cordova39 Rancho Cucamonga66 Rancho Mirage1 Rancho Murieta3 Rancho Palos Verdes1 Rancho Santa Fe1 Rancho Santa Margarita13 Red Bluff5 Redding33 Redlands21 Redondo Beach7 Redway1 Redwood City17 Redwood Valley2 Reedley7 Reno18 Rialto18 Richardson1 Richmond12 Ridgecrest6 Rio Linda8 Rio Vista1 Ripon6 Riverbank9 Riverdale1 Riverside173 Rocklin21 Rogersville1 Rogersville1 Rohnert Park16 Rolling Hills Estates2 Rosamond2 Roseburg1 Rosemead23 Roseville46 Rossmoor1 Rowland Heights11 Running Springs2 Sacramento236 Saint Charles1 Saint George1 Saint Paul1 Salida5 Salinas11 San Andreas1 San Anselmo1 San Antonio3 San Ardo1 San Bernardino40 San Bruno3 San Carlos6 San Clemente9 San Diego194 San Dimas21 San Fernando13 San Francisco120 San Gabriel12 San Jacinto10 San Jose236 San Juan Bautista2 San Juan Capistrano10 San Leandro27 San Lorenzo5 San Luis Obispo8 San Marcos20 San Marino3 San Martin3 San Mateo14 San Miguel2 San Pablo6 San Rafael10 San Ramon11 Sand City1 Sanger5 Santa Ana114 Santa Barbara23 Santa Clara28 Santa Clarita85 Santa Cruz4 Santa Fe Springs15 Santa Margarita1 Santa Maria19 Santa Monica10 Santa Paula4 Santa Rosa62 Santa Ynez3 Santee20 Saratoga2 Sausalito1 Scotts Valley4 Scottsdale2 Seal Beach5 Seaside9 Sebastopol8 Selma3 Shafter6 Shasta Lake3 Sheridan1 Shingle Springs22 Shingletown1 Shoshone1 Signal Hill9 Simi Valley64 Smartsville6 Solana Beach3 Solvang1 Somerset2 Somerton1 Sonoma7 Sonora5 Soquel3 Soulsbyville4 South El Monte16 South Gate13 South Lake Tahoe9 South Pasadena3 South San Francisco14 South Whittier15 Sparks4 Spring Valley11 Spring Valley Lake1 Stanton10 Star1 Sterling Heights1 Stevenson Ranch6 Stockton93 Strathmore2 Suisun2 Summerland1 Sun Valley1 Sunnyvale14 Surprise2 Susanville2 Sutter1 Suwanee1 Syracuse1 Taft7 Tahoma4 Tehachapi8 Temecula36 Tempe1 Temple City12 Templeton4 Thermal6 Thousand Oaks13 Thousand Palms12 Three Rivers1 Tiburon1 Tipp City1 Topanga2 Topock1 Torrance38 Trabuco Canyon4 Tracy18 Truckee13 Tulare22 Turlock22 Tustin21 Twain Harte1 Twentynine Palms2 Ukiah10 Union City7 Upland38 Vacaville31 Valencia21 Vallejo12 Valley Center18 Valley Springs6 Vancouver1 Ventura20 Verdi2 Vernon1 Victor1 Victorville25 Villa Park2 Visalia36 Vista26 Walnut19 Walnut Creek9 Walnut Grove2 Wasco2 Washington1 Waterford2 Watsonville10 Weaverville1 Weed2 West Covina43 West Hollywood6 West Sacramento23 West Saint Paul1 Westlake Village4 Westley1 Westminster19 Westwood1 Wheatland4 Whittier49 Wildomar20 Williams1 Willits3 Willow Creek1 Willows3 Wilton6 Winchester17 Windsor8 Winters3 Winton3 Woodbridge1 Woodinville1 Woodlake5 Woodland16 Woodside1 Yerington2 Yorba Linda22 Yountville1 Yreka3 Yuba City14 Yucaipa15 Yucca Valley5 Yuma3