Skip to content
acinstallationlosangeles.com

Guides · independent publisher, not a contractor

AC installation guides

25 guides to the questions Los Angeles homeowners ask before, during and after an AC installation, each linking to the cost, permit and quote pages for the numbers.

Reviewed · No named reviewer yet; see our editorial policy.

Choosing a system

Central AC vs heat pump in Los AngelesCentral AC or a heat pump for a Los Angeles home? Published 2026 prices for each, how mild winters change the math, the Ducted vs ductless coolingDucted systems or ductless mini-splits for a Los Angeles home: cost, comfort, noise, looks and filtration, and which houSingle-zone vs multi-zone mini-splitsOne outdoor unit per room or one for several rooms? Published 2026 Los Angeles mini-split prices by zone count, and how SEER2, EER2 and HSPF2: the ratings on an LA quoteWhat SEER2, EER2 and HSPF2 mean, the California minimums, the higher floors LADWP and Pasadena set for heat pump rebates

Sizing

What size AC does a Los Angeles home need?How AC size in tons is set for a Los Angeles house: why 600 sq ft per ton is only a start, how coast and Valley heat chaCan an oversized AC cause problems?Why a bigger AC is not better: short cycling, uneven rooms, humidity and wear from an oversized system, how to spot it,

Replacement

When should you replace an air conditioner?The signs it is time to replace a Los Angeles AC rather than repair it: age, refrigerant, repair costs, comfort and effiAC repair vs replacementRepair or replace a Los Angeles air conditioner? What to compare between the two quotes, the questions to ask, and how pWhat happens during an AC replacementWhat happens when an air conditioner is replaced in Los Angeles, step by step: home visit, permit, removal, install, staR-454B, R-32 and the A2L switch for a new LA systemWhat the move from R-410A to R-454B and R-32 means for a Los Angeles AC or heat pump in 2026: EPA and CARB rules, old stGas furnace to heat pump in a Los Angeles homeSwapping a gas furnace and AC for a heat pump in LA: what changes, comparing running costs, the electrical and permit st

Installation

How long does AC installation take?How long an AC or heat pump installation takes in Los Angeles, from quote to final inspection, and what adds days or weeHow to prepare your home for AC installationA checklist to prepare a Los Angeles home for AC or heat pump installation: access, the panel, attic, pets, parking, HOA

Permits and rebates

What is Title 24 HVAC compliance?What Title 24 Part 6 means for an AC or heat pump replacement in Los Angeles: what triggers it, the duct and refrigerantWhich utility serves my property?How to tell whether an LA-area address gets power from LADWP, SCE, Burbank, Pasadena or Glendale, and gas from SoCalGas Los Angeles heat pump rebates: status board and how to claimStatus of every heat pump rebate for Los Angeles homes, checked 2026-10-20: LADWP and Pasadena open, TECH and HEEHRA resThe LADWP heat pump rebate, step by stepThe LADWP heat pump rebate explained: per-ton tiers for ducted and ductless systems, SEER2/HSPF2 floors, the permit ruleHERS testing on a Los Angeles AC replacementWhat the HERS (now ECC) rater checks on an LA AC or heat pump replacement: duct leakage, refrigerant charge, airflow, 20

Older homes and property

Panel upgrades for a heat pump in Los AngelesWhen an LA heat pump needs a panel upgrade: the NEC load calculation, alternatives to upgrading, LADWP and LADBS steps,

Climate and comfort

Coastal Los Angeles vs the San Fernando ValleyNOAA normals for LAX, Long Beach, downtown, Burbank and Woodland Hills, and what the gap means for AC size, system type,How to fix hot and cold spotsWhy some rooms stay hot or cold after a new AC in a Los Angeles home: duct leaks, airflow, returns, sun and sizing, whatWildfire smoke filtration on a new ACSetting up a new LA AC or heat pump for wildfire smoke: EPA and South Coast AQMD advice, MERV 13 and static pressure, ai

Quotes and aftercare

Questions to ask an HVAC installerTwenty questions to ask a Los Angeles HVAC installer before you sign: license, sizing, equipment, ducts, permit, Title 2What to inspect after AC installationWhat to check after a new AC or heat pump is installed in Los Angeles: the finalled permit, Title 24 results, registratiHow often should a new AC be maintained?A maintenance schedule for a new AC or heat pump in Los Angeles: monthly filter checks, seasonal tasks, the yearly servi

Questions

Who writes these guides?

The publisher of acinstallationlosangeles.com, an independent lead-generation site, not an HVAC contractor. Every price comes from a named, dated Los Angeles source and every rule from the authority that sets it. No licensed reviewer has signed them yet.

Where are the prices?

On the AC installation cost guide, which every guide links to. The guides explain decisions; the cost guide holds the published ranges and their sources.

Next step

Cost guidePublished LA prices.Permit guideWhich office issues yours.Compare quotesSide-by-side tool.

Free quote request

Get a quote to check against these numbers

  1. Tell us about the job. Service, ZIP, property and timing. The form says right away if your ZIP is outside the area.
  2. We check the license first. Requests go only to contractors whose CSLB C-20 license we have matched on the state register. If none covers your ZIP yet, we email you and say so.
  3. Compare what comes back. Line the written quote up against the published ranges and the quote checklist.

No cost and no obligation. We are a publisher, not a contractor; contractors pay us for introductions. How that works.

Request AC installation quotes

Licensed Los Angeles HVAC contractors. Free, no obligation.

Enter a Los Angeles-area ZIP (900xx–918xx). Orange County, Ventura County and Santa Clarita have no partner yet.
Please add your name.
A phone number is how the contractor reaches you.
Please add a working email.
Please add the street address for the job.

By submitting you agree that acinstallationlosangeles.com, a lead-generation publisher, may share these details with licensed HVAC contractors who pay us, and that they may contact you. See the disclosure and privacy policy.
Launch status: if no partner covers your ZIP yet, we email you instead of passing your details on.

Get installation quotes