Heating & cooling
AC & HVAC repair in South San Francisco.
Furnace repair and ductless cooling for the older post-war homes west of the 101 in South San Francisco.
South San Francisco earned its Industrial City nickname, and that split shapes the residential HVAC side too. East of the 101, the biotech campuses and office parks run their own commercial systems, separate from what we handle. West of the freeway, the older post-war homes from the same building era as neighboring Daly City mostly run original wall or floor furnaces with no central cooling.
Furnace calls on the west side are the standard list: a thermocouple, an igniter, or a pressure switch reading a blocked condensate line, most of it a same-visit repair. The fog belt here keeps summers mild enough that AC was rarely part of the original build.
We run South San Francisco with the Daly City and San Bruno leg of our route, about 55 to 70 minutes from our San Ramon base. EPA Section 608 Universal certified, CSLB #1136642. The diagnostic is $99, credited toward the repair when you book it, with a written itemized quote before work begins.
West-side furnaces: repair first
A wall or floor furnace that won't light usually needs a thermocouple, a pilot assembly, or a gas valve, all stocked parts and a same-visit fix in most cases. We repair sound equipment rather than pushing a replacement. See furnace repair.
No existing ducting, and the ductless answer
Most of the older post-war homes west of the 101 have no ducts for cooling. A ductless mini-split adds it room by room without cutting chases into a house that was never built for them. We install Mitsubishi and Daikin, factory trained on both. See ductless mini-split repair.
Replacing an old furnace: the heat pump question
When a west-side furnace finally reaches the end, a heat pump conversion often makes sense in this climate. Electricity runs through Peninsula Clean Energy, gas through PG&E, and we confirm what's actually funding a rebate when we write your estimate rather than quoting numbers from memory. See HVAC installation.
Common questions, South San Francisco.
- Do you repair older furnaces in the post-war homes west of the 101?
Yes. Thermocouples, pilot assemblies, and gas valves cover most of what fails, and most are same-visit fixes. We only recommend replacement when the heat exchanger is compromised or parts no longer exist.
- My house has no ductwork at all. Can I still add cooling?
Yes. A ductless mini-split is the standard fix for the older west-side homes here. We plan head placement and line-set routing before drilling anything.
- What does an HVAC service call cost in South San Francisco?
The diagnostic is $99, credited toward the repair when you book it with us, with a written quote before work begins. We hold EPA Section 608 Universal certification and CSLB license #1136642.
Heating & cooling