New AC System in Mar Vista: Written Estimate Before Any Work Starts

Mar Vista sits just far enough inland from Venice that the marine layer stops helping by 10 a.m. on summer days. By noon, those 1950s ranch homes along Centinela and between Palms and Venice Boulevard are hitting 83-85°F inside. The original builders didn't plan for AC. They planned for louvered windows and cross-ventilation. That worked in 1958. It doesn't work when you've added a bedroom where the breeze path used to be, or when your single-pane windows and uninsulated stucco walls let heat pour in all afternoon. A properly sized central air unit changes what your home feels like from June through October.

Here's what we see on almost every Mar Vista install: the original ductwork is too small. These post-war tract homes were built with ducts sized for a wall furnace, not a modern AC system. If a crew drops in a new condenser and air handler without measuring duct capacity, you get weak airflow, hot rooms, and a compressor that short-cycles. We measure static pressure in every supply and return air vent before we quote. If your ducts need modification, we tell you upfront. Many homes along Inglewood Boulevard and in the blocks between Braddock and Palms also have original galvanized pipe, which can expand the permit scope. We flag that in the estimate, not on install day.

California's Title 24 energy code sets strict requirements for any new AC installation. In LADWP territory, which covers all of Mar Vista, every central air unit installed after January 2023 must meet the SEER2 rating standard. The minimum for a split system in our climate zone is 15.2 SEER2. That's not optional. The city requires a permit, a Manual J load calculation, and duct leakage testing before sign-off. For a typical 1,200-1,400 sq. ft. Mar Vista ranch home, a properly sized system runs between 2 and 3.5 tons. We pull the permit, schedule the HERS inspection, and handle the LADWP rebate paperwork. Current LADWP rebates run $200-$500 depending on the efficiency tier. Daikin AC units and Carrier systems both qualify at the higher rebate levels when paired with a variable-speed air handler.

A full central air unit installation in Mar Vista, including duct sealing and permit fees, typically lands between $8,500 and $14,000. The range depends on tonnage, whether your return air vent needs to be resized, and attic access. Homes with flat roofs or low-clearance attics along the streets south of Venice Boulevard often require extra labor for line-set routing. We give you a written, line-item estimate before work starts. No change orders unless we find something hidden behind drywall, and even then you approve the cost first. Every system we install meets or exceeds the current ENERGY STAR-certified central AC systems threshold, and we back the installation with a 10-year parts warranty from the manufacturer plus our own 2-year labor guarantee.