Gravity furnace replacement cost in a Westside Los Angeles house depends on more than the furnace itself. The old unit is large, the ducts around it are wide, and the wrap on both may need testing before anyone cuts. Westside AirCon Services writes the whole job as one quote, so you see every line before work starts.
What replacing a gravity furnace costs
No single figure fits every house, and we do not print one here. Two homes with the same furnace can quote very differently because of what surrounds it.
The quote has four parts:
- The new system. A furnace, a heat pump or a ductless setup, each priced on its own.
- Removal. The old furnace is big and often sits low in a crawl space or small basement.
- Ducts. Wide gravity ducts rarely fit a modern blower system.
- Compliance. Permit, inspection and any duct testing the scope calls for.
A visit lets us measure all four. After that you get a number you can plan around, and you can compare it against the other options we price for your house.
What moves the price
These are the items that push a gravity furnace quote up or down.
- Asbestos abatement. Older furnace insulation and duct wrap in homes of this age may contain asbestos. If a lab test says it does, removal follows the abatement process, and that step is its own line on the quote.
- New ducts. If the old runs cannot carry a blower system, new ductwork is part of the job. A full duct replacement costs more than reusing sound runs.
- Where the new system goes. A crawl space, a basement, a closet or the attic each changes the labor and the venting. Some homes are better served by moving equipment out of the old spot.
- System type. A furnace is the lighter job. A heat pump adds cooling and may call for an electrical check. A ductless mini split skips the ducts altogether.
- Access. Narrow crawl space openings slow the work.
Testing for asbestos before work
This step comes first, and it comes before a demolition date.
- Do not tear out old wrap or insulation yourself.
- A sample is taken and tested before the material is disturbed.
- If it tests clean, the work goes ahead as planned.
- If it tests positive, the quote shows the abatement as a separate line, and the schedule adjusts.
We tell you what we see during the visit and what needs testing. The test result decides whether abatement lands in your quote at all, so it is worth doing early, before you set a budget.
Permits and duct testing
Replacing a furnace, heat pump, AC or ductwork in California is permitted work. Who issues the permit depends on your address.
| Where | Permit office |
|---|---|
| Mar Vista, Venice and other City of Los Angeles neighborhoods | LADBS |
| Santa Monica | The city's building and safety division |
| Culver City | The city's building and safety division |
Title 24 Part 6 is California's Building Energy Efficiency Standard. On a change-out or duct work it can require duct sealing and a duct leakage test, verified by a third-party HERS rater who is not the installer. Whether it applies depends on the scope. If new ducts are part of your job, expect it to show up on the quote.
The gas side runs through SoCalGas. If you smell gas, leave the house first and call SoCalGas or 911 from outside.
The written quote
You get the quote before any work begins. It lists the equipment, the removal, the duct work, any abatement, the permit and the inspection steps. If you want two options, such as a new furnace and a ductless system, we write both on the same terms.
If your gravity furnace still runs, repair stays on the table. Our heating repair crew will look at it and tell you what it needs. Many owners ask for both a repair figure and a replacement figure, then decide. When you are ready to move, heating installation books the date.
FAQ
How much does gravity furnace replacement cost?
It depends on the new system, the ducts, the removal and whether asbestos abatement applies. We write the number after a visit, not over the phone.Is asbestos abatement always needed?
No. Older wrap may contain asbestos, but only a test tells you. If the test is clean, there is no abatement line.Do the old ducts have to go?
Often. Wide gravity ducts usually do not suit a blower furnace or a heat pump. Ductless is the option that avoids new ducts.Does the job need a permit?
Yes. Replacing a furnace, heat pump, AC or ductwork in California is permitted work, and the quote includes the permit steps for your city.Can I get quotes for two systems?
Yes. We can price a ducted system and a ductless one side by side so you can compare the totals.To get your gravity furnace replacement priced, call (877) 360-6719 and Westside AirCon Services will set up the visit.
Need Professional HVAC Service?
Our HVAC-experienced technicians are ready to help with all your AC and heating needs. Contact Westside AirCon Services today for expert service throughout the the Culver City Corridor service area.





