The short answer
A heat pump can replace both a gas furnace and an AC in most Los Altos homes, using existing ducts or ductless indoor units. The key steps are a load calculation, a check of your electrical panel, and choosing equipment and placement that suit the house and lot.
A heat pump moves heat instead of burning fuel to make it. In winter it pulls warmth from outdoor air and brings it inside; in summer it reverses and carries heat out. Los Altos is well suited to that approach. Winters are mild and damp rather than frigid, and summers are warm without the extreme heat of the inland valley, so a properly sized heat pump can carry a house through the year on electricity alone. BayPro Heating & Cooling plans and installs ducted and ductless heat pumps throughout 94024, about 12 miles west of our San Jose shop. This page explains how we evaluate a Los Altos home, what the electrical side involves, and what current rules and incentives actually say.
Why Los Altos homeowners are switching
Some people come to us because their gas furnace is old and they would rather not install another one. Others want cooling for the first time and like the idea of getting heat from the same system. Some have solar panels and want to use more of that power at home.
Air District policy is part of the picture too. Under Bay Area Air District Rule 9-4, gas furnaces manufactured from 2029 must meet a zero-NOx emission standard, which in practice points toward heat pumps when a furnace is replaced after that date. The rule does not require you to remove working equipment. It simply means that the next time your furnace needs replacing, a heat pump is likely to be the practical choice, and some owners prefer to make that change on their own schedule rather than during a winter breakdown.
Ducted, ductless or a mix
If your home has a forced-air furnace with reasonably sound ducts, a ducted heat pump is usually the cleanest swap. An indoor air handler replaces the furnace, and an outdoor unit replaces or takes the place of the AC condenser. Registers and thermostat location stay much the same.
Homes without ducts, or with ducts in poor shape, can use ductless mini-split heads mounted on walls or ceilings, each serving a room or zone. Many Los Altos houses end up with a combination: a ducted system for the main living area and a ductless head for an addition, a converted garage or a bonus room the original ducts never served well.
Electrical panel and wiring
Older homes in 94024 often have electrical panels sized for a time when heat came from gas. Before we recommend equipment, we look at the panel's rating, the available breaker space and the load already on it, especially if you also have or plan an EV charger, induction range or heat pump water heater.
In many cases a heat pump fits on the existing service, sometimes with a load management device. Where a panel upgrade is needed, we tell you up front so it can be coordinated with your electrician and the utility instead of surfacing halfway through the job.
Our installation process
Every heat pump project follows the same core steps, adjusted to the house:
- Room-by-room heating and cooling load calculation, not a guess from square footage
- Duct inspection and static pressure test where ducts will be reused
- Electrical review of the panel and circuit needs
- Outdoor unit placement chosen for airflow, drainage, neighbor distance and service access
- Permit application and coordination of the city inspection
- Removal and proper disposal of old equipment, including recovery of refrigerant
- Startup, airflow measurement and thermostat setup, with a walkthrough of how heat pump heating feels
Rebates and tax credits, stated accurately
Incentives change often, so we avoid promising numbers. The federal Energy Efficient Home Improvement Credit (25C) covered qualifying heat pumps placed in service before December 31, 2025, and it is not available for new installations after that date. Bay Area homeowners can still check BayREN and their local clean energy provider for heat pump and electrification incentives. Amounts and availability shift with each funding cycle, so we confirm the current offer before including it in a quote.
Living with a heat pump
Heat pump warmth feels steadier and gentler than a furnace's quick blast of hot air. The system tends to run longer at lower output, which keeps temperatures even. We set the thermostat schedule with that in mind and show you how to use it, so the house stays comfortable on a cold February morning without wasted energy.
More services in Los Altos
- AC Repair in Los Altos
- Heating Repair in Los Altos
- AC Installation in Los Altos
- Furnace Repair in Los Altos