HVAC in Los Angeles
Pick your area or enter your ZIP to see local companies.
Choose your area
Each area page lists local hvac companies you can contact directly.
- WestsideBrowse companies
- San Fernando ValleyBrowse companies
- Downtown / EastsideBrowse companies
- Long BeachBrowse companies
- South BayBrowse companies
Map and ZIP codes (131 ZIP codes)
- Westside
- San Fernando Valley
- Downtown / Eastside
- Long Beach
- South Bay
- Not yet covered
ZIP boundaries: US Census Bureau ZIP Code Tabulation Areas.
- Westside
- 90024 90025 90034 90035 90045 90049 90064 90066 90067 90073 90077 90094 90095 90210 90211 90212 90230 90232 90272 90291 90292 90293 90401 90402 90403 90404 90405
- San Fernando Valley
- 91302 91303 91304 91306 91307 91311 91316 91324 91325 91326 91330 91331 91335 91340 91342 91343 91344 91345 91352 91356 91364 91367 91371 91401 91402 91403 91405 91406 91411 91423 91436 91501 91502 91504 91505 91506 91601 91602 91604 91605 91606 91607 91608
- Downtown / Eastside
- 90012 90013 90014 90015 90017 90021 90022 90023 90026 90031 90032 90033 90039 90041 90042 90057 90063 90065 90071 90079 90090
- Long Beach
- 90755 90802 90803 90804 90805 90806 90807 90808 90810 90813 90814 90815 90822 90831
- South Bay
- 90245 90247 90248 90249 90250 90254 90260 90266 90274 90275 90277 90278 90501 90502 90503 90504 90505 90506 90710 90717 90731 90732 90744 90745 90746 90747
How requests work
We assign one partner per service in each area. None is assigned for this service in Los Angeles yet, so a request comes to our team and we contact you about next steps. It is never resold.
You can also browse other listed qualifying companies. Directory listings do not grant a partner slot or change where a TrustedLocals request is routed.
Partners pay for an exclusive TrustedLocals request-routing slot for their service and area. Payment does not change source ratings.
Repairs, replacement and what to ask
Heating and cooling faults fall into four groups. Electrical: a tripped breaker or a failed small part such as a capacitor. Airflow: a clogged filter, a frozen coil or leaking ducts. Refrigerant: a leak, which should be found and fixed, not just topped up. The equipment itself: a failed compressor, or a cracked heat exchanger in a gas furnace, which can put carbon monoxide into the home and means the furnace stays off until it is replaced. A diagnosis should name which, in writing, before any repair-or-replace conversation.
Read the full guide
Replacement is a design job, not a swap. The right size comes from a load calculation (ACCA Manual J) based on the home's insulation, windows, orientation and ducts. It should not be copied from the old unit, which was often the wrong size. Oversized systems switch on and off too often, cool unevenly and fail early. Ducts matter as much as the equipment: leaky or undersized ducts waste much of what the system produces.
Replacing a system needs a mechanical permit from your city's building department; in the City of Los Angeles that is the Department of Building and Safety. For most system changeouts and for duct replacements over 25 feet, California's energy code also requires an independent field test by a certified rater (an ECC-Rater, formerly a HERS rater), which shows the ducts are sealed and, where the code calls for it, that the refrigerant charge is right.
If you are replacing a central system, ask about a heat pump. Los Angeles has a mild climate, and one unit both heats and cools. Two checks come first: whether the electrical panel has room for the new circuit, since a panel upgrade is a job of its own, and whether the existing ducts can carry the airflow a heat pump needs. Ductless mini-splits suit homes without ducts and additions. Rebate programs from the state and utilities change often; ask the contractor what is current and get it in writing.
Refrigerants are changing. Equipment built since 2025 uses R-454B or R-32 instead of R-410A, though R-410A systems built before then can still be sold from stock, and a failed outdoor unit on an existing R-410A system can still be replaced on its own. Ask which refrigerant a quoted system uses and what that means for parts and service later.
HVAC contractors hold the C-20 classification from the Contractors State License Board, and the law requires them to carry workers' compensation whether or not they have employees. Check the record at cslb.ca.gov for an active license, the bond and a workers' compensation policy rather than an exemption. Ask who will do the install, whether the company gets the permit, and whether the field test is included.
Maintenance is simple: change the filter on schedule, keep the outdoor unit clear, and have the system checked before the cooling season. A spring check finds weak capacitors, dirty coils and slow refrigerant leaks before a heat wave does.
Read the homeowner guide: what to do, who to call, and how to check the company
Common questions
What should I check before calling about heating or cooling?
Check that the thermostat is set to the right mode and has power, that the breaker for the system has not tripped, and that the air filter is not clogged. If none of those is the cause, send a request.
Repair or replace: how is that decided?
The company diagnoses the fault and looks at the system's age, condition and efficiency. Ask for a written diagnosis and the options, including the repair, before agreeing to a replacement.
What should I include in my request?
What the system is doing, or not doing, the type of system if you know it (central air, heat pump, furnace, mini-split), and roughly how old it is.
Why does the new system need a permit and a HERS test?
Replacing a system needs a mechanical permit from your city's building department, and California's energy code requires an independent field test of most system changeouts and larger duct replacements by a certified rater, now called an ECC-Rater and formerly a HERS rater. Both protect you: the test shows the ducts are sealed and, where the code calls for it, that the refrigerant charge is right.
My system uses R-410A. Can it still be serviced?
Yes. Equipment built since 2025 uses newer refrigerants, but R-410A remains available for servicing existing systems, and a failed outdoor unit on an R-410A system can still be replaced on its own. A leak should be found and repaired, not just topped up.
Should I replace with a heat pump?
A heat pump is a sound choice for a Los Angeles home replacing a central system: one unit heats and cools, and the mild climate suits it. Ask for a load calculation, a check of the electrical panel and ducts, and a written comparison with a conventional system before deciding.
How does TrustedLocals choose a hvac partner for Los Angeles?
We list companies rated 4.5+ on Google and pick one partner per area. Google and Yelp ratings are shown separately from reviews of TrustedLocals jobs. Payment buys the routing slot, not a rating.
Where does my TrustedLocals request go?
It depends on your ZIP code. Where no partner is active for this service, a request comes to our team, and we contact you about next steps. Enter your ZIP code on the request form to see what applies to you. Your request is never put up for bids.
Can I browse other companies in a partner's area?
You can also browse other listed qualifying companies. Directory listings do not grant a partner slot or change where a TrustedLocals request is routed. Website and call links contact a business directly, outside TrustedLocals request routing.
Is there a fee to send a request?
No. Sending a request is free. You pay the company directly for the work, at the price they quote you.
What if something goes wrong?
Tell us. We can remove a company that falls short.