The short answer
A heat pump replaces both your AC and furnace with one electric system, and Campbell's mild winters and hot summers suit it well. We size it with a load calculation, check your electrical panel and ducts, and confirm any current local incentives before quoting.
In Campbell, the case for a heat pump rests on both seasons. Winters in the Santa Clara Valley are mild enough that a heat pump heats efficiently nearly every day, and summers in this southern part of the valley are hot enough that strong cooling matters just as much. ExpertFlow HVAC Repair Service installs heat pumps in ZIP 95008, a short drive of about nine miles southeast of Los Altos. Below we explain how we decide between system types, what happens to your existing furnace and ducts, and which incentive facts are solid right now.
Questions to answer before choosing equipment
A good heat pump proposal comes from a handful of specific answers. We work through these with you during the site visit:
- How old are the current furnace and air conditioner, and is either failing?
- Does the electrical panel have room for a heat pump circuit, and what other electric upgrades are planned?
- Are the ducts sealed, insulated and large enough for steady heat pump airflow?
- Which rooms run hot in summer or cold in winter today?
- Is there space outside for the unit with proper clearance from fences and windows?
- Would you rather retire gas heating entirely or keep the furnace as backup?
Three layouts that suit Campbell homes
Full ducted replacement is the most common choice. The furnace comes out, an air handler with a heat pump coil takes its place, and a single outdoor unit handles heating and cooling. This works best when the ducts are in decent shape or can be repaired during the job.
A hybrid or dual-fuel system keeps a newer gas furnace in place and adds a heat pump that does most of the work, with the furnace stepping in only on the coldest mornings. It is a reasonable bridge when the furnace still has years left.
Ductless mini-splits fit homes without ducts, additions that never got good airflow, or a back cottage. One outdoor unit can feed several indoor heads, each with its own setting.
What the rules and incentives actually say
Bay Area Air District Rule 9-4 requires natural gas furnaces manufactured from 2029 to meet a zero-NOx standard, which effectively makes heat pumps the path for most furnace replacements after that date. The Air District rules do not require replacing working equipment; they apply only when a furnace or water heater fails or is replaced.
On the money side, the federal 25C credit covered heat pumps placed in service before December 31, 2025, and is not available for installations now. BayREN and your local clean energy provider may run heat pump incentives, but amounts and availability change by funding cycle. We confirm the current offer before putting it in writing.
If you are also thinking about a heat pump water heater, note that the Rule 9-6 zero-NOx date for small water heaters was set for 2027 and the Air District Board is considering amendments in November 2026 that could delay it. Check the current rule before planning that replacement.
Installation details that affect comfort
Heat pumps deliver warm air at a gentler temperature than a gas flame, so airflow has to be right. We measure static pressure, correct restrictive returns, and seal duct leaks in the attic. Outdoors, the unit sits on a raised pad so defrost water drains away and does not refreeze around the base on a frosty morning.
We also configure the thermostat for heat pump operation, set auxiliary heat lockouts so backup strips do not run unnecessarily, and verify defrost cycles before signing off. These settings have a large effect on electric bills and are easy to get wrong.
Living with a heat pump
Heat pumps work best at a steady setpoint. Large nighttime setbacks make the system work harder to recover in the morning, often with backup heat. Change filters regularly, keep the outdoor unit clear of leaves, and schedule a yearly service that covers both heating and cooling modes.
Along with Campbell, we install heat pumps in Saratoga, Cupertino, Santa Clara, Sunnyvale and Mountain View. A site visit gives you a written comparison of options for your specific house.
More services in Campbell
- AC Repair in Campbell
- Heating Repair in Campbell
- AC Installation in Campbell
- Furnace Repair in Campbell
