Furnace Installation in Los Angeles and Nearby Cities

Most Los Angeles homes don't run the heat for long stretches, so a furnace can sit quietly for years and then fail on the first cold night. When a furnace is aging, unsafe, or not keeping up, replacing it is often the most practical fix. AllPro HVAC Services installs gas furnaces and electric heat pump systems for homeowners in Los Angeles and nearby cities. This page covers how to tell whether you need a new system, what we look at before recommending one, your options, what affects the cost, and what to expect on installation day.

Signs You Need a New Furnace

Because winters here are mild, furnace problems often show up suddenly instead of gradually. These signs usually point toward replacement rather than another repair:

A cracked heat exchanger or venting problem can let combustion gases into your home. If your carbon monoxide alarm goes off, leave the house and call your gas utility or 911 first. We offer 24/7 emergency service once the home is safe to enter.

• The furnace needs repairs every season, and the same parts keep failing.
• Some rooms stay cold while others overheat, even after filters and vents are checked.
• You hear banging, rattling, or screeching when the system starts or runs.
• The burner flame looks yellow or flickering instead of steady blue.
• You see rust, cracks, or soot around the furnace cabinet or vent pipe.
• Your gas bills climb even though you use the heat about the same amount.
• Replacement parts for your model are hard to find or no longer made.

What We Check Before Recommending a Replacement

We don't recommend a new furnace based on age alone. A technician looks at the whole heating system so the replacement fits your home and fixes the actual problem.

We also ask how you use your home. A house in an inland valley that bakes all summer has different needs than one near the coast that rarely gets hot. If you also want better cooling, that can change which system makes the most sense.

• Heat exchanger condition, burners, igniter, and flame sensor
• Venting and flue pipe for damage, proper slope, and safe clearances
• Gas line connection and shutoff valve
• Blower motor, wiring, and electrical supply
• Ductwork for leaks, crushed sections, or poor insulation, especially in attics and crawl spaces
• Thermostat operation and placement
• Return air size and filter setup
• Where the furnace sits now: attic, closet, garage, or crawl space

Repair or Replace: Your Options

If the furnace is in good overall shape and the problem is a single part, such as an igniter, flame sensor, or blower motor, repair is often the sensible choice, and we'll tell you when that's the case. Replacement makes more sense when the heat exchanger is cracked, repairs keep piling up, or the system is the wrong size for the house.

When you replace, you generally have two paths:

Local rules matter here. South Coast AQMD Rule 1111 limits NOx emissions from gas furnaces sold and installed in the Los Angeles region, and the district has been amending it toward zero-emission requirements. Because the district sets and revises compliance dates, we check the current rule before quoting any gas furnace replacement.

Rebates depend on your utility. LADWP residential electric customers can apply for rebates on qualifying heat pump systems, with the amount based on the unit's SEER2 and HSPF2 ratings. The application is filed after the equipment is purchased and installed, within 12 months of purchase. Many homes outside the City of Los Angeles are served by Southern California Edison instead, so we confirm what is currently offered at your address before including it in a quote. The federal 25C tax credit for heat pumps applied only to systems placed in service before December 31, 2025, and is not available for new installations.

• A new gas furnace. In many homes this can use the existing gas line and venting, and it pairs with a separate air conditioner if you have one.
• An electric heat pump. One system heats in winter and cools in summer, which suits the local climate, where cooling is often the bigger need, especially inland and during fall Santa Ana heat.

What Affects the Cost of Furnace Installation

Every installation is quoted after an in-home visit, because the price depends on details we can't see over the phone. The main factors are:

We put these items in writing so you can compare options side by side and see which choices drive the price.

• System type: gas furnace, heat pump, or a combination
• Size and efficiency rating of the equipment
• Location of the unit, since attic and crawl space installs take more labor than garage or closet installs
• Condition of existing ductwork and whether sections need repair or replacement
• Changes to venting, gas lines, or electrical service, especially when switching from gas to a heat pump
• Permits and inspections required by your city
• Removal and disposal of the old equipment
• Thermostat upgrades or added zones

How a Furnace Installation Visit Works

First, you schedule an appointment and tell us what's happening with your heat. A technician arrives, inspects the current system, measures the home, and talks through your comfort concerns.

Next, we explain repair and replacement options in plain language, including any rule or rebate details that apply to your address. You get a written quote and time to decide without pressure.

On installation day, the crew protects floors and work areas, disconnects and removes the old unit, sets the new equipment, and connects gas, venting, electrical, ductwork, and the thermostat as needed. Many straightforward replacements take about a day; bigger changes, like switching to a heat pump, can take longer.

Before we leave, we start the system, run it through a full heating cycle, check for safe operation, and show you how to use the thermostat and change the filter. If your city requires an inspection, we coordinate it with you.