Cost of furnace and ac installation — San Diego, CA

Last updated: September 24, 2026

What affects the price

When you look at the cost of a new HVAC system, several variables come into play. The size of your home and the necessary cooling or heating capacity—measured in tons—are the biggest factors. You also have to consider the efficiency rating of the unit, the complexity of your existing ductwork, and whether you need to upgrade electrical components to support a modern system. Labor requirements, including accessibility and permit fees, further influence the final number.

About this service

Replacing both your furnace and AC at the same time is often a smart move, as it ensures the two systems communicate properly and work efficiently together. The cost covers new equipment, labor for both units, and any necessary venting or electrical adjustments. Doing both together can save on labor time compared to separate visits. Total project costs are typically higher for a full system swap, and exact pricing is confirmed free on the call.

Fall is an excellent time for a system replacement. With the summer heat fading and winter months approaching, you can focus on getting your heating system inspected or replaced without the pressure of extreme weather. It is a quiet time for installers, which often means more attentive service and easier scheduling.

Frequently asked in San Diego

Also serving nearby: El Cajon · Chula Vista · San Marcos · Escondido · Carlsbad

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More on this: DOE home heating — system sizing and savings.

Service area details

Serving all of San Diego — population 1,388,320; about 4,257 residents per square mile across 326.1 sq mi. ZIP codes covered include 92101, 92102, 92103, 92104, 92105, 92106, 92107, 92108.

Neighborhoods served in San Diego: La Jolla, Gaslamp Quarter, Coronado, Point Loma, North Park, Ocean Beach — and every surrounding area.