HVAC in Hillsborough, California
Hillsborough needs its own HVAC permit.
This page is about the town of Hillsborough in San Mateo County, California. The town normally issues heating and air-conditioning work its own permit, and its homeowners can claim Peninsula Clean Energy's heat pump rebate.
Does Hillsborough need a separate permit for HVAC work?
Normally, yes. The Town of Hillsborough says separate permits are required for electrical, plumbing, and heating or air-conditioning work, so a new furnace or AC isn't covered by an electrical or plumbing permit.
If a job touches more than one of those trades, expect more than one permit. Ask the town's building staff which ones your project needs before you sign anything.
Source: Town of Hillsborough, Obtaining a Permit, checked 2026-10-17
Is this Hillsborough, California?
Yes. We're AD Mechanical, based next door in San Mateo, and we work on homes in Hillsborough, California.
Is there a rebate for a heat pump in Hillsborough?
Yes, from Peninsula Clean Energy, which serves all of San Mateo County, Hillsborough included. Its 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.
The rebate covers any fully electric system, ducted or ductless. A hybrid dual-fuel system, a heat pump with gas backup heat, does not qualify.
Source: Peninsula Clean Energy, Home Upgrade Rebates Terms and Conditions (updated May 18, 2026), checked 2026-10-17
Planning a replacement in Hillsborough?
Call and tell us what you have now and what you're thinking of, or book a visit online.
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.
