AC Installation in Los Angeles

Most AC installs that fail in Southern California don’t fail because the equipment was bad. They fail because the system was oversized off a square-footage rule of thumb, because the existing ductwork couldn’t move the new unit’s CFM, because the line set wasn’t pulled to a deep vacuum, or because the contractor never pulled a permit. We measure the home, run a Manual J, verify the ducts, and pull the permit. The equipment matters: the install matters more.

What a code-compliant AC install includes in 2026

Every residential AC installation we do covers, at minimum:

• Manual J load calculation: we measure square footage, ceiling heights, window area and orientation, insulation R-value, infiltration, and internal gains. The output is the actual cooling load in BTUs/hr, not a guess.
• Manual D / Manual S verification: checking that the existing ducts can carry the new unit’s CFM at the right static pressure. Mismatched ducts kill efficiency on day one.
• SEER2 14.3 or higher equipment: California Southwest region minimum since 2023. Coastal homes 14.3 is fine; inland we usually recommend 15–16.
• R-454B refrigerant equipment: all new condensers and coils built since Jan 1, 2025 use R-454B (A2L). We’re fully equipped and certified for A2L work (see our AC repair page for the full transition explainer).
• Permit pulled in your name with the local AHJ (City of LA, LA County, OC, etc.).
• HERS verification: third-party rater tests duct leakage (<15% target), refrigerant charge, and fan watt-draw. Required for Title 24 sign-off. See our HERS testing post and the full California Code 2026 requirements.
• Smart thermostat: Ecobee, Nest, or Honeywell T-series, programmed on-site.
• Rebate paperwork: TECH Clean California (heat pump conversions, currently waitlisted), SCE / LADWP / SoCalGas incentives. Federal IRA Section 25C tax-credit documentation only for installs placed in service on or before December 31, 2025 (the credit was terminated for 2026 installs).

Honest pricing: what most LA homeowners actually pay

For a typical residential install in 2026:

• Straight split-system replacement (matched condenser + coil, existing furnace, existing ducts): $4,500–$7,500 installed including permit + HERS.
• Premium split system (16+ SEER2, variable-speed, smart thermostat, line-set replacement): $7,500–$9,500.
• Full system replacement (condenser + coil + furnace + thermostat): $9,000–$14,000.
• Ductless mini-split single zone: $4,200–$6,800 per outdoor unit + indoor head.
• Multi-zone ductless (3–5 heads): $10,500–$18,000.

Things that push the price up: dedicated electrical circuit upgrade ($600–$1,200), ductwork replacement ($1,800–$5,500), attic accessibility issues, condenser pad relocation, copper line-set replacement on long runs. We surface every adder before signing: never after.

Coastal vs. inland sizing — one home doesn’t fit all of LA

The same 1,800 sq ft home in Santa Monica needs a smaller AC than one in Burbank. Why:

• Coastal cities (Santa Monica, Malibu, El Segundo, Huntington Beach) average July highs of 75–78°F. Cooling load is dominated by short afternoon peaks. Often 2 tons is plenty for 1,800 sq ft.
• Mid-basin LA (West Hollywood, Culver City, Beverly Hills): July highs 82–86°F. 2.5–3 tons typical.
• Valley (Van Nuys, Sherman Oaks, Woodland Hills): regularly 95°F+ July–September. 3–4 tons typical for the same square footage.
• Inland Empire (Riverside, San Bernardino, Palm Springs): 100°F+ for weeks. Higher SEER2 (16+) pays back fast at 1,500+ cooling hours/year.

Our coastal vs. inland HVAC post covers the climate-zone differences in detail.

Rebates and tax credits — current 2026 stack

For 2026 the rebate landscape on AC and heat-pump installs:

• TECH Clean California (heat-pump conversions only): $3,000 standard income, up to $8,000 qualifying low-income, when funded. Status as of May 2026: single-family heat pump HVAC funds fully reserved November 14, 2025; new reservations go on a waitlist. Gas-AC stays do not qualify. Full breakdown: TECH Clean California rebates. Complete utility-by-utility 2026 map: California HVAC Rebates & Tax Credits 2026.
• LADWP central AC rebate (LADWP territory): $100 per ton (SEER2 15.2–15.9), $120 per ton (SEER2 16.0+). Heat-pump conversions earn the much larger LADWP heat-pump rebate ($1,250–$2,500 per ton).
• SCE rebates: $150–$1,200 typical for high-efficiency installs in SCE territory. We pull the active program at quote time; the lists change yearly.
• Federal IRA Section 25C: terminated December 31, 2025 under the One Big Beautiful Bill Act. The $2,000 heat-pump credit and $600 high-efficiency AC credit are gone for 2026 installs. Equipment placed in service on or before December 31, 2025 can still be claimed on a 2025 tax return.
• SoCalGas: incentives on dual-fuel pairings (gas furnace + heat pump or high-efficiency AC).

We submit TECH reservations (currently waitlisted for single-family) and prepare your LADWP/SCE/SoCalGas application packet at job close-out — itemized invoice, AHRI Certificate Reference Number, final-permit and HERS records. The federal IRA 25C credit is no longer available for 2026 installs, so there is no Form 5695 paperwork to hand off this year.

How we run the actual install day

A typical replacement install is one day, 7–9 hours from arrival to walkthrough:

1. Floor protection: drop cloths from the door to the equipment.
2. Recovery: pull existing refrigerant per EPA into a recovery cylinder (no venting: that’s an EPA fine).
3. Removal: pull old condenser and coil. Inspect the line set, plenum, and disconnect.
4. Set new equipment: condenser pad, coil cabinet, isolation pads, electrical disconnect.
5. Brazing & nitrogen purge: copper line set brazed under flowing nitrogen to prevent oxide formation.
6. Triple-evacuation to 500 microns: vacuum pump pulls system below 500 microns, holds, decay test passes.
7. Charge by weight + superheat/subcool: charge to manufacturer spec, verify with gauges.
8. Startup and verification: amp draws, supply/return temps, static pressure, condensate pump test.
9. HERS rater visit (often same day or within a week): independent verification.
10. Walkthrough: thermostat programming, filter location, breaker panel labeling, paperwork handoff.

Service areas

We install AC across Los Angeles County, Orange County, Ventura County, San Bernardino County, and Riverside County. Each region has its own dispatch line — see footer. If your existing AC just died, our 24/7 emergency HVAC page covers same-night stabilization.