How much does a new furnace cost?
A new gas furnace starts from $6,000, before the permit. Our 2026 furnace replacements came to $6,025 for a straight swap in Piedmont, $11,708 with new ductwork in Richmond and $14,946 with zoning in Corte Madera. Permit and city inspection start from $250. Estimates are free, and the final price is set after the estimate.
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Furnace installation prices
The prices below are what we charge in the East Bay and Marin County.
| Job | Price |
|---|---|
| Gas furnace replacement | From $6,000 |
| Single-sided gas wall heater replacement | From $3,100 |
| Double-sided gas wall heater replacement | From $3,700 |
| Ductwork replacement | From $3,400 |
| Permit and city inspection | From $250 |
| Estimate for a new system | Free |
Current offers: furnace trade-in of up to $1,500, a rebate for your old furnace, and financing with 12 months at 0% interest. See current offers · See all prices
Recent furnace and heater installations
Totals from completed 2026 jobs, before discounts.
Piedmont · $6,025
Goodman 96% AFUE gas furnace, 40,000 BTU, single-stage.
Standard installation materials included.
Richmond · $11,708
Goodman 96% AFUE gas furnace, 60,000 BTU, with new ductwork.
Ductwork replacement ($6,030) and a larger intake and return ($530).
Corte Madera · $14,946
97% AFUE modulating condensing gas furnace, 80,000 BTU, with a zone control system.
Zone control system ($4,850) and a Google Nest thermostat.
Oakland · $6,200 plus permit
Gas floor furnace replacement, 50,000 BTU.
Permit and city inspection: $1,050.
Wall heaters · $3,150 to $3,940
A single-sided 25,000 BTU wall heater in Walnut Creek ($3,150). Double-sided wall heaters in Concord ($3,790) and Berkeley (50,000 BTU top-vent, $3,940).
What changes the price
These are the lines that moved the total on our recent furnace jobs.
- Efficiency. We install 80% and 96% AFUE gas furnaces. A 96% furnace is a condensing unit: it needs PVC venting and a condensate drain.
- Size. Our recent furnaces ranged from 40,000 to 100,000 BTU.
- Ductwork. New ductwork was $6,030 on a Richmond job.
- Zoning. A zone control system was $3,850 to $4,850 on our jobs.
- Furnace and AC together. Replacing both at once means a new furnace, outdoor unit and evaporator coil.
- Permit and city inspection. From $250; $1,350 on a Walnut Creek furnace job.
We help with rebates and offer financing. Rebates · Financing
Permit and city inspection
In California, replacing a furnace requires a permit. It is billed separately, from $250.
Warranty
Goodman furnaces on our jobs came with a warranty of up to 10 years plus a labor warranty. Daikin equipment carries a warranty of up to 12 years.
Thinking about a heat pump?
A heat pump can replace a furnace and air conditioner with one system, or work alongside a gas furnace as dual fuel. In Moraga we paired a Daikin FIT heat pump with a 96% AFUE Daikin gas furnace.
Heat pump installation · All heating systems · Furnace repair
When we’re not the right call
- Homes without ductwork: a central furnace needs ducts. Without ducts, a gas wall heater or a ductless mini split is the option.
- Air-to-water heat pumps: we don’t install them.
- Homes in San Francisco or the South Bay: we serve the East Bay and Marin County.
Questions
How much does a new furnace cost?
A new gas furnace starts from $6,000. Our 2026 furnace replacements came to $6,025, $11,708 with new ductwork and $14,946 with zoning. The permit is extra, from $250. Estimates are free.
Should I get an 80% or a 96% AFUE furnace?
A 96% AFUE furnace turns more of the gas into heat. It is a condensing unit, so it needs PVC venting and a condensate drain. An 80% furnace vents through a metal flue. We install both and will tell you which fits your house at the free estimate.
Do you replace wall heaters and floor furnaces?
Yes. Single-sided gas wall heaters start from $3,100 and double-sided from $3,700. In 2026 we also replaced a 50,000 BTU gas floor furnace in Oakland.
Is there a trade-in for my old furnace?
Yes. Our furnace trade-in gives a rebate of up to $1,500 for your old furnace.
Do I need a permit for a new furnace?
Yes. In California, replacing a furnace requires a permit and a city inspection. It is billed separately, from $250.
Which furnace brands do you install?
Mainly Goodman and Daikin. We repair all brands.
Serving the East Bay and Marin County: Alameda, Contra Costa and Marin counties. See the full service area →
Planning a new furnace?
Not sure which furnace fits your home? We’ll tell you at the free estimate.
