HVAC costs in San Mateo County
What will a furnace replacement cost?
No price is on this page yet: we would rather show dated prices than a range with no date. Below is what moves the cost of a job, and the rebate terms that can come off it.
How much does it cost to replace a furnace in San Mateo?
We haven't put a price on this page yet, and we won't put up a range with no date on it. When a price goes here, it will carry the month it was quoted and what it includes.
Until then, this page covers what moves the cost of a furnace replacement, and the rebate terms that can come off it.
What changes the price of a replacement?
Homes with the same furnace can end up with different totals, because the job around the furnace is different:
- The equipment: the size and type of system, and whether it is a like-for-like swap or a change, such as a gas furnace to a heat pump.
- The ducts: when an air handler, an outdoor unit, a packaged system or a coil is replaced, the state requires the connected ducts to be sealed by the installer and verified by an independent ECC-Rater, so the state of your ducts adds or saves work.
- The permit: each city has its own steps, and some ask for plans or a site plan.
- The site: where the equipment sits and how easy it is to reach.
A quote for your own house is what fixes the price. The list only tells you where it comes from.
Source: California Energy Commission, 2025 Single-Family Residential Compliance Manual (June 2025), checked 2026-10-17
Can a rebate bring the cost down?
Yes, for a fully electric heat pump. For San Mateo homes, Peninsula Clean Energy's current terms pay $1,500 per heat pump condensing unit, or packaged unit, that replaces a gas heater or furnace, with a limit per electric account.
That rebate is for heat pumps, so it does not come off a new gas furnace.
Source: Peninsula Clean Energy, Home Upgrade Rebates Terms and Conditions (updated May 18, 2026), checked 2026-10-17
Want a price for your house?
Call and tell us what you have now, or book a visit online.
What about an AC repair visit or a tune-up?
Those will get dated prices here too, once we have them. Until then, call and describe what the system is doing.
Tell us what it's doing. We'll take it from there.
Call and describe the problem: the noise, the smell, the room that never warms up. Or book a visit online.
