AC installation in Sherman Oaks

About AC installation in Sherman Oaks

Short answer

A central AC replacement in Sherman Oaks starts at $7,900 installed with Airwork, including the permit from LA Department of Building and Safety (LADBS), HERS testing and haul-away. We size it with a Manual J load calculation and quote a fixed price in writing.

What we see in Sherman Oaks homes

In Sherman Oaks, the biggest installation mistake is copying the old unit's size. Many houses have grown since their system went in, while others have new windows and insulation that cut the load. A room-by-room Manual J calculation sorts this out. For a ranch home with a second-story addition, a zoned system or a separate upstairs unit usually works better than one larger system.

Ducts get as much attention as equipment. Long, sagging flex runs to additions are replaced with properly sized ducts, and returns are added where rooms have none. In the hills, we plan the condenser location for access, noise and the run to the air handler. West-facing glass in hillside rebuilds may call for a ductless head in that room alone. Condo installs need HOA approval for the outdoor unit, and sometimes a crane to reach the roof. We handle those requests and schedule the lift. Since LADWP pays heavily for heat pumps, most quotes here include a heat pump option next to the AC. The quote lists the duct work separately, so you can see what each part costs.

Older ranch homes north of the boulevard often have attic insulation that is thin by today's standards. Adding insulation with the new system cuts the load and the size of equipment you need. Houses with a pool often have pool equipment near the condenser, which affects placement. Electrical panels in the post-war homes may need an upgrade for a heat pump, and we check first. Hillside homes may need a crane or extra labor to set equipment, which we include in the quote.

Where the equipment goes in Sherman Oaks homes

On the flats, a new condenser fits the old side-yard pad in most ranch homes. Additions sometimes move the best spot to the back yard, closer to the rooms that need the most air. In the hills, decks and terraces hold condensers, and the line run to the air handler sets the price. Condo installs go where the HOA allows, often on a shared roof. Upstairs additions may get a separate air handler in their own attic space.

Questions to settle before a Sherman Oaks install

• Did a past addition change the cooling load beyond the old system's size?
• Should the addition get its own system or a zone on the main one?
• Do the flex ducts to the addition need replacing?
• Does the HOA require approval for the outdoor unit?
• Would a heat pump with LADWP's rebate cost about the same as an AC?

After the install

LADBS and a HERS rater check the system, and we meet both. We measure airflow at each register after the install, so the addition gets its share. LADWP rebate paperwork follows the final inspection.

Many Sherman Oaks ranch homes have been expanded, and the AC was rarely resized when that happened. A new system sized from a real load calculation fixes rooms that never quite cooled. In some cases, the better answer is a second small system or a ductless head for the addition. We explain why before recommending either.

Condos along Ventura Boulevard often need HOA approval for equipment changes, and roof units may require a crane. We prepare the documents the HOA usually needs and schedule lifts with the building. LADWP customers can lower the net cost by choosing a qualifying heat pump instead of a straight AC.

The NOAA weather station 5 miles from Sherman Oaks, Van Nuys Airport, averaged 50 days a year at 95°F or hotter and 21 days at 100°F or hotter in 2016-2025. Its hottest reading was 118°F on September 6, 2020.

California requires a permit for a new or replacement central system, and most replacements also need a third-party HERS test of duct leakage and system performance. We pull the permit, schedule the HERS rater and meet the inspector.

LADBS issues express permits online, with no plan check, for replacing an AC with one of the same size and type and for adding equipment of 5 tons or less, so a standard change-out permit can be issued the day it is requested. Systems that need plan review go through ePlanLA.

In Sherman Oaks (ZIP codes 91403 and 91423), 36% of homes were built before 1960 and 71% before 1980; 59% of households heat with natural gas, and 35% of homes are detached single-family houses.

Sherman Oaks is served by LADWP. Up to $2,500 per ton for qualifying heat pumps purchased and installed from November 1, 2025. The amount depends on SEER2 and HSPF2 ratings. That is far more than for a standard AC, so we price both options.