The short answer
Yes, ClearSky Heating & Cooling serves Los Altos Hills (94022) for AC, furnace, heat pump, ductless and duct work. The town is about 12 miles west of our San Jose base, and we also cover Los Altos, Mountain View, Cupertino, Sunnyvale and Saratoga.
Houses in Los Altos Hills are rarely simple from a mechanical point of view. Many sit on sloped, spread-out lots, carry more than one heating and cooling system, and include guest quarters, studios or pool houses that were added long after the main house was built. ClearSky Heating & Cooling travels about 12 miles west from San Jose to the town, which is in Santa Clara County under ZIP code 94022, to repair, maintain and replace that equipment. Our aim on every visit is the same: find the real cause, describe it clearly, and lay out choices that fit the property instead of pushing a single answer.
Larger homes, multiple systems, more places for trouble
A single-zone system in a modest house is easy to read. A hillside property with two furnaces, an attic air handler, a condenser tucked down a slope and a separate unit for a detached studio is another matter. When one area of the home is uncomfortable, the first job is figuring out which system serves it and whether the fault sits in the equipment, the controls or the ductwork between them.
We map that out on the first visit and note it for later service, so the next technician who comes out already knows which thermostat talks to which unit. That saves time on repairs and makes maintenance visits more thorough.
Typical calls from the 94022 area
The requests we see from Los Altos Hills tend to cluster around comfort in specific rooms and around planning for equipment that is getting older.
- Upstairs or far wings that run warm in summer while the rest of the house is fine
- Furnaces that light, shut off and relight, often a flame sensor or venting issue
- Outdoor condensers on slopes or in planted beds that are choked with leaves and debris
- Ductless mini-splits for studios, gyms, wine rooms and in-law units
- Heat pump installation when a homeowner wants to retire a gas furnace
- Zoning, thermostat and control problems across multiple systems
- Duct cleaning and air filtration upgrades for dusty summers and smoky days
Weather on the west side of the valley
The Santa Clara Valley has a Mediterranean climate: dry summers and mild, damp winters. Areas closer to the Bay stay milder, while inland and southern parts of the valley run noticeably hotter. Los Altos Hills falls on the cooler western edge, which means many homes lean more on heating than cooling over the course of a year. Cool, moist nights keep furnaces and heat pumps cycling for months, and an air conditioner may sit idle for long stretches before a run of warm days suddenly asks it to work hard.
That stop-and-start pattern is hard on equipment that has not been checked. A system that sat unused all spring can show a failed capacitor or a clogged drain line on its first hot afternoon. A pre-season tune-up catches those small items before the house is uncomfortable.
Thinking ahead about gas furnaces
Under Bay Area Air District Rule 9-4, natural gas furnaces manufactured from 2029 must meet a zero-NOx emission standard. In practice, that points homeowners toward heat pumps when a furnace is replaced after that date. The rules do not require replacing working equipment, so nobody has to pull out a furnace that still runs well; they come into play only when a unit fails or is replaced.
For properties with several gas furnaces, the timing question is real. Some owners prefer to convert one zone to a heat pump now, see how it performs, and plan the rest over time. Others wait until a unit fails. We can assess electrical capacity, duct condition and room loads so either path is based on facts about your house.
On incentives, the federal 25C credit applied only to qualifying heat pumps placed in service before December 31, 2025, so it does not cover new installations. BayREN and your local clean energy provider may have current electrification programs; those change by funding cycle, and we confirm what is available before it goes into a proposal.
How a visit works
Let us know about gates, long driveways or where the equipment is located when you book, especially if a unit is in a crawl space or on a lower terrace. The technician checks the reported problem, looks over the rest of the system for related issues, and explains what was found before any repair begins. You decide what gets done that day and what can wait.
ZIP codes we serve
- 94022