Furnace replacement cost in Los Angeles depends on the furnace type and efficiency, its size, any venting and ductwork changes, where the furnace sits, and the permit and labor the job needs. This guide explains each driver so you can compare quotes on equal terms. We do not publish a flat price, because two homes on the same street can need very different work. For an exact number, a free estimate from our furnace installation team prices your home.
What Drives Furnace Replacement Cost?
Furnace type and efficiency
A standard, non-condensing gas furnace and a high-efficiency condensing furnace differ in price and in installation work. Efficiency is rated in AFUE, the share of the fuel that ends up as heat in the house.
Size
Capacity should come from the home's heat loss, measured with a load calculation (ACCA Manual J), not from the label on the old furnace.
Venting
Moving from a standard furnace to a condensing one usually means new plastic venting and a condensate drain; matching the old type often reuses the existing flue.
Location and access
An attic or crawl space installation takes more time and handling than a furnace in a garage or hall closet.
Ducts and gas line
Leaky or undersized ducts, or a gas line too small for the new furnace, add work that is better done now than later.
Permit and inspection
In the City of Los Angeles, installing heating equipment needs a mechanical permit from LADBS (LADBS), and other cities issue their own.
Standard or High-Efficiency: What Changes in the Price?
A condensing furnace costs more to buy and to install, because of the new venting and the drain, and it burns less gas for the same heat. With mild Los Angeles winters, the yearly gas savings can be smaller, so the decision rests on how much you heat, whether the existing venting suits a standard furnace, and how long you plan to stay. Ask for both options on the same estimate when both fit the house.
Repair or Replace Your Furnace?
ENERGY STAR suggests considering replacement once a furnace is more than 15 years old (ENERGY STAR). A cracked heat exchanger or repeated breakdowns point the same way, while a small repair on a sound furnace is usually the better money. Our guide repair or replace a furnace lists the signs, and a furnace repair visit gives you the repair price to compare.
How to Compare Furnace Replacement Quotes
The same capacity and efficiency
Compare quotes for the same size and AFUE, with model numbers written down.
The sizing method
Ask how the size was chosen; a load calculation is the industry method.
What is included
Removal of the old furnace, venting and drain work, gas and electrical connections, a new filter rack and the thermostat.
The permit
Who pulls it and whether the inspection is part of the price.
Warranty terms
The manufacturer's parts warranty and any labor coverage, in writing.
Furnace or Heat Pump?
If the air conditioner is old too, price a heat pump alongside the furnace: one heat pump heats and cools, and for climates with moderate heating and cooling needs the DOE describes heat pumps as an energy-efficient alternative to furnaces and air conditioners (DOE). Our comparison heat pump vs furnace goes through the trade-offs, and heat pump installation covers the job itself.
Lowering the Net Cost
Utility and state programs can reduce the price of efficient equipment; check the current terms before you buy (see our guide to HVAC rebates in California). Monthly payment plans are on our HVAC financing page.
Furnace Replacement Cost Questions
How much does a new furnace cost in Los Angeles?
It depends on furnace type and efficiency, size, venting, access, ducts and gas line, and the permit, so the exact figure comes from an estimate for your home. Global Green Solutions offers free estimates; see furnace installation.
Does a bigger furnace cost more to run?
An oversized furnace short-cycles, heating in quick bursts that waste fuel and wear parts, so the right size, from a load calculation, avoids that waste.
Do I need a permit to replace a furnace?
In the City of Los Angeles, yes: LADBS requires a mechanical HVAC permit for installing heating equipment. Burbank, Glendale, Pasadena and other cities permit through their own building departments.