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Technician at a condenser on a Los Angeles County residential street

County service area

Heating and Cooling in Los Angeles County, CA

Heating and cooling in Los Angeles County is an older-housing job: 70% of the county’s homes predate 1980, and the median home dates to 1965. Proair works from South Gate across the southeast county, and some communities listed here need a call to confirm scheduling for your address.

  • CSLB C-20 #776028
  • 4.8 from 16 Google reviews
  • Shop in USA Business Park
  • Open Mon to Sat, 9 to 5

What makes this county different for HVAC

Rooftops of older homes across the Los Angeles County basin on a hazy day
Older low-rise neighborhoods stretch across the county basin.

Census estimates for 2020 to 2024 show about 43% of county homes built before 1960 and about 54% of households renting. Many of those homes got air conditioning long after they were built, so ducts and panels are often the real limit. See how our HVAC contractor work is organized, or go straight to air conditioning or heating.

Rules vary as much as housing. The county holds 88 cities plus unincorporated areas, and each city runs its own permits. Unincorporated addresses go to LA County Public Works, and a county 82°F rental rule is due to start there no earlier than January 1, 2027 (check current county rules). Under the 2025 Energy Code, replacing equipment triggers duct testing countywide.

Utilities shift too. Most of these communities use Southern California Edison and SoCalGas, but Pasadena has Pasadena Water and Power, and Long Beach runs its own gas system.

Not sure who covers your address? Call us.

Give us the street and the problem, and we will tell you what we can do.

  • CSLB C-20 #776028
  • 4.8 from 16 Google reviews
  • Shop in USA Business Park
  • Open Mon to Sat, 9 to 5

Communities on our Los Angeles County list

Each card shows road miles from our Paramount Boulevard shop without traffic, then the Census median build year and share of households renting.

Closest to our shop

  • Paramount

    2 miles. Median home built 1971. 57% rented.

  • Downey

    3.1 miles. Median home built 1959. 49% rented.

  • Lynwood

    3.9 miles. Median home built 1952. 52% rented.

  • Compton

    5.2 miles. Median home built 1957. 44% rented.

  • Bell Gardens

    5.2 miles. Median home built 1960. 79% rented.

  • Cudahy

    5.8 miles. Median home built 1967. 86% rented.

  • Walnut Park

    6.4 miles. Median home built 1938. 49% rented.

  • Bell

    7 miles. Median home built 1956. 74% rented.

  • Huntington Park

    7.2 miles. Median home built 1957. 76% rented.

The next ring of cities

  • Bellflower

    4.7 miles. Median home built 1966. 61% rented.

  • Norwalk

    5.4 miles. Median home built 1957. 32% rented.

  • Pico Rivera

    6.8 miles. Median home built 1957. 29% rented.

  • Lakewood

    6.9 miles. Median home built 1957. 29% rented.

  • Maywood

    7.8 miles. Median home built 1953. 69% rented.

  • Commerce

    7.9 miles. Median home built 1957. 45% rented.

  • Artesia

    7.9 miles. Median home built 1966. 50% rented.

  • Montebello

    8.4 miles. Median home built 1963. 54% rented.

  • Carson

    9.5 miles. Median home built 1966. 26% rented.

  • Cerritos

    9.6 miles. Median home built 1974. 24% rented.

  • Gardena

    10.3 miles. Median home built 1964. 51% rented.

  • Whittier

    10.9 miles. Median home built 1956. 42% rented.

  • Hawthorne

    12.1 miles. Median home built 1970. 73% rented.

  • Long Beach

    12.3 miles. Median home built 1959. 59% rented.

  • Inglewood

    13.4 miles. Median home built 1960. 64% rented.

Wider list: call to confirm scheduling for your address

  • Santa Fe Springs

    7.8 miles. Median home built 1960. 39% rented.

  • East Los Angeles

    9.3 miles. Median home built 1950. 66% rented.

  • La Mirada

    10.3 miles. Median home built 1960. 24% rented.

  • Torrance

    14.9 miles. Median home built 1964. 45% rented.

  • Alhambra

    15.6 miles. Median home built 1960. 59% rented.

  • El Monte

    18.5 miles. Median home built 1965. 60% rented.

  • Pasadena

    18.9 miles. Median home built 1961. 57% rented.

  • West Covina

    19.6 miles. Median home built 1967. 40% rented.

  • Pomona

    30.7 miles. Median home built 1967. 46% rented.

Permit papers on a clipboard beside a new furnace in a Los Angeles County home
Permit paperwork differs by city, so confirm the issuing office before the work starts.

Sources

Los Angeles County questions

Does Proair cover all of Los Angeles County?

No. We focus on the southeast county around our South Gate shop, and the wider list on this page is scheduled address by address. The county stretches across thousands of square miles, including desert in the north, and that is well outside our range. Call with your address and we will tell you plainly whether we can schedule it.

Who issues HVAC permits in Los Angeles County?

Your city does, if you live in one of the 88 incorporated cities. Unincorporated addresses go to LA County Public Works Building and Safety, which uses a Service Locator to match your address to an office. Mailing names can mislead, so check before you apply, and ask your contractor who pulls the permit, in writing.

Do older Los Angeles County homes need new ducts with a new AC?

Not automatically, but they must pass. The 2025 Energy Code requires existing ducts on replaced equipment to test at 10% total leakage or less, or 7% to the outside. If neither is possible, accessible leaks are sealed and verified. Homes built before 1960 often need repairs before they reach those numbers.

Heating or cooling trouble in LA County?

Phone Proair on (213) 423-7827 and ask for a clear, upfront quote. The shop opens Monday to Saturday, 9 to 5.

  • CSLB C-20 #776028
  • 4.8 from 16 Google reviews
  • Shop in USA Business Park
  • Open Mon to Sat, 9 to 5
Call (213) 423-7827